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<meta name="description" content="アニメーション図解とワンクリック実行コードで学べるデータ構造とアルゴリズムの入門書">
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4.3 リスト
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<span class="md-ellipsis">
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はじめに
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はじめに
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<span class="md-ellipsis">
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第 0 章 前書き
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第 0 章 前書き
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0.1 本書について
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</a>
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</li>
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0.2 本書の使い方
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</span>
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</a>
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0.3 まとめ
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第 1 章 アルゴリズムを知る
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第 1 章 アルゴリズムを知る
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1.1 アルゴリズムは至るところにある
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1.2 アルゴリズムとは
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1.3 まとめ
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第 2 章 計算量解析
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第 2 章 計算量解析
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2.1 アルゴリズム効率の評価
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|
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</span>
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2.2 反復と再帰
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|
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|
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</a>
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2.3 時間計算量
|
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|
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|
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|
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|
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|
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|
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|
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</a>
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2.4 空間計算量
|
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|
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|
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|
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</span>
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|
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|
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|
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</a>
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2.5 まとめ
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|
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|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M11 13.5v8H3v-8zm-2 2H5v4h4zM12 2l5.5 9h-11zm0 3.86L10.08 9h3.84zM17.5 13c2.5 0 4.5 2 4.5 4.5S20 22 17.5 22 13 20 13 17.5s2-4.5 4.5-4.5m0 2a2.5 2.5 0 0 0-2.5 2.5 2.5 2.5 0 0 0 2.5 2.5 2.5 2.5 0 0 0 2.5-2.5 2.5 2.5 0 0 0-2.5-2.5"/></svg>
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
第 3 章 データ構造
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
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|
||
<label class="md-nav__link " for="__nav_5" id="__nav_5_label" tabindex="0">
|
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<span class="md-nav__icon md-icon"></span>
|
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</label>
|
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|
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</div>
|
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|
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_5_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_5">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
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第 3 章 データ構造
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
|
||
<a href="../../chapter_data_structure/classification_of_data_structure/" class="md-nav__link">
|
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|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
3.1 データ構造の分類
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
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|
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|
||
|
||
|
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|
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|
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|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_data_structure/basic_data_types/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
3.2 基本データ型
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
|
||
<a href="../../chapter_data_structure/number_encoding/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
3.3 数値エンコーディング *
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
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||
|
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|
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|
||
|
||
|
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|
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|
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|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_data_structure/character_encoding/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
3.4 文字エンコーディング *
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
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||
|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_data_structure/summary/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
3.5 まとめ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
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|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
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|
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|
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|
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|
||
|
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|
||
<li class="md-nav__item md-nav__item--active md-nav__item--nested">
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|
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|
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|
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6" checked>
|
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|
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|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../" class="md-nav__link ">
|
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|
||
|
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|
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 5v14h17V5zm4 2v2H5V7zm-2 6v-2h2v2zm0 2h2v2H5zm13 2H9v-2h9zm0-4H9v-2h9zm0-4H9V7h9z"/></svg>
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
第 4 章 配列と連結リスト
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_6" id="__nav_6_label" tabindex="0">
|
||
<span class="md-nav__icon md-icon"></span>
|
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</label>
|
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|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_6_label" aria-expanded="true">
|
||
<label class="md-nav__title" for="__nav_6">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
第 4 章 配列と連結リスト
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
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|
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|
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|
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|
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|
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|
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|
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|
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|
||
<li class="md-nav__item">
|
||
<a href="../array/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
4.1 配列
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
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|
||
|
||
|
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|
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|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../linked_list/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
4.2 連結リスト
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
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|
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|
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<li class="md-nav__item md-nav__item--active">
|
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|
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<input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
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|
||
|
||
|
||
<label class="md-nav__link md-nav__link--active" for="__toc">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
4.3 リスト
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<a href="././" class="md-nav__link md-nav__link--active">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
4.3 リスト
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
|
||
|
||
<nav class="md-nav md-nav--secondary" aria-label="目次">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<label class="md-nav__title" for="__toc">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
目次
|
||
</label>
|
||
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#431" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
4.3.1 リストの基本操作
|
||
|
||
</span>
|
||
</a>
|
||
|
||
<nav class="md-nav" aria-label="4.3.1 リストの基本操作">
|
||
<ul class="md-nav__list">
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#1" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
1. リストの初期化
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#2" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
2. 要素へのアクセス
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#3" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
3. 要素の挿入と削除
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#4" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
4. リストの走査
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#5" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
5. リストの連結
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#6" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
6. リストをソート
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
<li class="md-nav__item">
|
||
<a href="#432" class="md-nav__link">
|
||
<span class="md-ellipsis">
|
||
|
||
4.3.2 リストの実装
|
||
|
||
</span>
|
||
</a>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../ram_and_cache/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
4.4 メモリとキャッシュ *
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../summary/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
4.5 まとめ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
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|
||
|
||
|
||
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_7" >
|
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|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../chapter_stack_and_queue/" class="md-nav__link ">
|
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|
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|
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|
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M17.36 20.2v-5.38h1.79V22H3v-7.18h1.8v5.38zM6.77 14.32l.37-1.76 8.79 1.85-.37 1.76zm1.16-4.21.76-1.61 8.14 3.78-.76 1.62zm2.26-3.99 1.15-1.38 6.9 5.76-1.15 1.37zm4.45-4.25L20 9.08l-1.44 1.07-5.36-7.21zM6.59 18.41v-1.8h8.98v1.8z"/></svg>
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
第 5 章 スタックとキュー
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_7" id="__nav_7_label" tabindex="0">
|
||
<span class="md-nav__icon md-icon"></span>
|
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</label>
|
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|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_7_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_7">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
第 5 章 スタックとキュー
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
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|
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|
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|
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|
||
|
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|
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|
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|
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|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_stack_and_queue/stack/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
5.1 スタック
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_stack_and_queue/queue/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
5.2 キュー
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_stack_and_queue/deque/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
5.3 両端キュー
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_stack_and_queue/summary/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
5.4 まとめ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
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<li class="md-nav__item md-nav__item--nested">
|
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|
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|
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|
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_8" >
|
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|
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|
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<div class="md-nav__link md-nav__container">
|
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<a href="../../chapter_hashing/" class="md-nav__link ">
|
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|
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|
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|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19.3 17.89c1.32-2.1.7-4.89-1.41-6.21a4.52 4.52 0 0 0-6.21 1.41C10.36 15.2 11 18 13.09 19.3c1.47.92 3.33.92 4.8 0L21 22.39 22.39 21zm-2-.62c-.98.98-2.56.97-3.54 0-.97-.98-.97-2.56.01-3.54.97-.97 2.55-.97 3.53 0 .96.99.95 2.57-.03 3.54zM19 4H5a2 2 0 0 0-2 2v12a2 2 0 0 0 2 2h5.81a6.3 6.3 0 0 1-1.31-2H5v-4h4.18c.16-.71.43-1.39.82-2H5V8h6v2.81a6.3 6.3 0 0 1 2-1.31V8h6v2a6.499 6.499 0 0 1 2 2V6a2 2 0 0 0-2-2"/></svg>
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
第 6 章 ハッシュテーブル
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
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|
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|
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<label class="md-nav__link " for="__nav_8" id="__nav_8_label" tabindex="0">
|
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<span class="md-nav__icon md-icon"></span>
|
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</label>
|
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|
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</div>
|
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|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_8_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_8">
|
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<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
第 6 章 ハッシュテーブル
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
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|
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|
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|
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|
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|
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|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_hashing/hash_map/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
6.1 ハッシュテーブル
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_hashing/hash_collision/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
6.2 ハッシュ衝突
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
||
|
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|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_hashing/hash_algorithm/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
6.3 ハッシュアルゴリズム
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_hashing/summary/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
6.4 まとめ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
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|
||
|
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|
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|
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|
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|
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<li class="md-nav__item md-nav__item--nested">
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_9" >
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|
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<div class="md-nav__link md-nav__container">
|
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<a href="../../chapter_tree/" class="md-nav__link ">
|
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|
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|
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|
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19.5 17c-.14 0-.26 0-.39.04L17.5 13.8c.45-.45.75-1.09.75-1.8a2.5 2.5 0 0 0-2.5-2.5c-.14 0-.25 0-.4.04L13.74 6.3c.47-.46.76-1.09.76-1.8a2.5 2.5 0 0 0-5 0c0 .7.29 1.34.76 1.79L8.65 9.54c-.15-.04-.26-.04-.4-.04a2.5 2.5 0 0 0-2.5 2.5c0 .71.29 1.34.75 1.79l-1.61 3.25C4.76 17 4.64 17 4.5 17a2.5 2.5 0 0 0 0 5A2.5 2.5 0 0 0 7 19.5c0-.7-.29-1.34-.76-1.79l1.62-3.25c.14.04.26.04.39.04s.25 0 .38-.04l1.63 3.25c-.47.45-.76 1.09-.76 1.79a2.5 2.5 0 0 0 5 0A2.5 2.5 0 0 0 12 17c-.13 0-.26 0-.39.04L10 13.8c.45-.45.75-1.09.75-1.8 0-.7-.29-1.33-.75-1.79l1.61-3.25c.13.04.26.04.39.04s.26 0 .39-.04L14 10.21a2.5 2.5 0 0 0 1.75 4.29c.13 0 .25 0 .38-.04l1.63 3.25c-.47.45-.76 1.09-.76 1.79a2.5 2.5 0 0 0 5 0 2.5 2.5 0 0 0-2.5-2.5m-15 3.5c-.55 0-1-.45-1-1s.45-1 1-1 1 .45 1 1-.45 1-1 1m8.5-1c0 .55-.45 1-1 1s-1-.45-1-1 .45-1 1-1 1 .45 1 1M7.25 12c0-.55.45-1 1-1s1 .45 1 1-.45 1-1 1-1-.45-1-1M11 4.5c0-.55.45-1 1-1s1 .45 1 1-.45 1-1 1-1-.45-1-1m3.75 7.5c0-.55.45-1 1-1s1 .45 1 1-.45 1-1 1-1-.45-1-1m4.75 8.5c-.55 0-1-.45-1-1s.45-1 1-1 1 .45 1 1-.45 1-1 1"/></svg>
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
第 7 章 木
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
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|
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|
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<label class="md-nav__link " for="__nav_9" id="__nav_9_label" tabindex="0">
|
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<span class="md-nav__icon md-icon"></span>
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</label>
|
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|
||
</div>
|
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|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_9_label" aria-expanded="false">
|
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<label class="md-nav__title" for="__nav_9">
|
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<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
第 7 章 木
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
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|
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|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_tree/binary_tree/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
7.1 二分木
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_tree/binary_tree_traversal/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
7.2 二分木の走査
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_tree/array_representation_of_tree/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
7.3 二分木の配列表現
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_tree/binary_search_tree/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
7.4 二分探索木
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_tree/avl_tree/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
7.5 AVL 木 *
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_tree/summary/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
7.6 まとめ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
||
<li class="md-nav__item md-nav__item--nested">
|
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_10" >
|
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|
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|
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<div class="md-nav__link md-nav__container">
|
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<a href="../../chapter_heap/" class="md-nav__link ">
|
||
|
||
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 1a2.5 2.5 0 0 0-2.5 2.5A2.5 2.5 0 0 0 11 5.79V7H7a2 2 0 0 0-2 2v.71A2.5 2.5 0 0 0 3.5 12 2.5 2.5 0 0 0 5 14.29V15H4a2 2 0 0 0-2 2v1.21A2.5 2.5 0 0 0 .5 20.5 2.5 2.5 0 0 0 3 23a2.5 2.5 0 0 0 2.5-2.5A2.5 2.5 0 0 0 4 18.21V17h4v1.21a2.5 2.5 0 0 0-1.5 2.29A2.5 2.5 0 0 0 9 23a2.5 2.5 0 0 0 2.5-2.5 2.5 2.5 0 0 0-1.5-2.29V17a2 2 0 0 0-2-2H7v-.71A2.5 2.5 0 0 0 8.5 12 2.5 2.5 0 0 0 7 9.71V9h10v.71A2.5 2.5 0 0 0 15.5 12a2.5 2.5 0 0 0 1.5 2.29V15h-1a2 2 0 0 0-2 2v1.21a2.5 2.5 0 0 0-1.5 2.29A2.5 2.5 0 0 0 15 23a2.5 2.5 0 0 0 2.5-2.5 2.5 2.5 0 0 0-1.5-2.29V17h4v1.21a2.5 2.5 0 0 0-1.5 2.29A2.5 2.5 0 0 0 21 23a2.5 2.5 0 0 0 2.5-2.5 2.5 2.5 0 0 0-1.5-2.29V17a2 2 0 0 0-2-2h-1v-.71A2.5 2.5 0 0 0 20.5 12 2.5 2.5 0 0 0 19 9.71V9a2 2 0 0 0-2-2h-4V5.79a2.5 2.5 0 0 0 1.5-2.29A2.5 2.5 0 0 0 12 1m0 1.5a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1M6 11a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1m12 0a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1M3 19.5a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1m6 0a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1m6 0a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1m6 0a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1"/></svg>
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
第 8 章 ヒープ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_10" id="__nav_10_label" tabindex="0">
|
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<span class="md-nav__icon md-icon"></span>
|
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</label>
|
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|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_10_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_10">
|
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<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
第 8 章 ヒープ
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
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|
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|
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|
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|
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|
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|
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|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_heap/heap/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
8.1 ヒープ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
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|
||
|
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|
||
|
||
|
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|
||
|
||
|
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|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_heap/build_heap/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
8.2 ヒープ構築
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
||
|
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|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_heap/top_k/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
8.3 Top-k 問題
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_heap/summary/" class="md-nav__link">
|
||
|
||
|
||
|
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<span class="md-ellipsis">
|
||
|
||
|
||
8.4 まとめ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
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|
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|
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|
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</ul>
|
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</nav>
|
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|
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|
||
|
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|
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|
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|
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|
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|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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<li class="md-nav__item md-nav__item--nested">
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<div class="md-nav__link md-nav__container">
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<a href="../../chapter_graph/" class="md-nav__link ">
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|
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|
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="m12 5.37-.44-.06L6 14.9c.24.21.4.48.47.78h11.06c.07-.3.23-.57.47-.78l-5.56-9.59zM6.6 16.53l4.28 2.53c.29-.27.69-.43 1.12-.43s.83.16 1.12.43l4.28-2.53zM12 22a1.68 1.68 0 0 1-1.68-1.68l.09-.56-4.3-2.55c-.31.36-.76.58-1.27.58a1.68 1.68 0 0 1-1.68-1.68c0-.79.53-1.45 1.26-1.64V9.36c-.83-.11-1.47-.82-1.47-1.68A1.68 1.68 0 0 1 4.63 6c.55 0 1.03.26 1.34.66l4.41-2.53-.06-.45c0-.93.75-1.68 1.68-1.68s1.68.75 1.68 1.68l-.06.45 4.41 2.53c.31-.4.79-.66 1.34-.66a1.68 1.68 0 0 1 1.68 1.68c0 .86-.64 1.57-1.47 1.68v5.11c.73.19 1.26.85 1.26 1.64a1.68 1.68 0 0 1-1.68 1.68c-.51 0-.96-.22-1.27-.58l-4.3 2.55.09.56A1.68 1.68 0 0 1 12 22M10.8 4.86 6.3 7.44l.02.24c0 .71-.44 1.32-1.06 1.57l.03 5.25zm2.4 0 5.51 9.64.03-5.25c-.62-.25-1.06-.86-1.06-1.57l.02-.24z"/></svg>
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<span class="md-ellipsis">
|
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|
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|
||
第 9 章 グラフ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_11" id="__nav_11_label" tabindex="0">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_11_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_11">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
第 9 章 グラフ
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_graph/graph/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
9.1 グラフ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_graph/graph_operations/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
9.2 グラフの基本操作
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_graph/graph_traversal/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
9.3 グラフの走査
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_graph/summary/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
9.4 まとめ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_12" >
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../chapter_searching/" class="md-nav__link ">
|
||
|
||
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="m19.31 18.9 3.08 3.1L21 23.39l-3.12-3.07c-.69.43-1.51.68-2.38.68-2.5 0-4.5-2-4.5-4.5s2-4.5 4.5-4.5 4.5 2 4.5 4.5c0 .88-.25 1.71-.69 2.4m-3.81.1a2.5 2.5 0 0 0 0-5 2.5 2.5 0 0 0 0 5M21 4v2H3V4zM3 16v-2h6v2zm0-5V9h18v2h-2.03c-1.01-.63-2.2-1-3.47-1s-2.46.37-3.47 1z"/></svg>
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
第 10 章 探索
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_12" id="__nav_12_label" tabindex="0">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_12_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_12">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
第 10 章 探索
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_searching/binary_search/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
10.1 二分探索
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_searching/binary_search_insertion/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
10.2 二分探索の挿入位置
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_searching/binary_search_edge/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
10.3 二分探索の境界
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_searching/replace_linear_by_hashing/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
10.4 ハッシュによる最適化戦略
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_searching/searching_algorithm_revisited/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
10.5 探索アルゴリズム再考
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_searching/summary/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
10.6 まとめ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_13" >
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../chapter_sorting/" class="md-nav__link ">
|
||
|
||
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19 17h3l-4 4-4-4h3V3h2M2 17h10v2H2M6 5v2H2V5m0 6h7v2H2z"/></svg>
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
第 11 章 ソート
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_13" id="__nav_13_label" tabindex="0">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_13_label" aria-expanded="false">
|
||
<label class="md-nav__title" for="__nav_13">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
|
||
第 11 章 ソート
|
||
|
||
|
||
</label>
|
||
<ul class="md-nav__list" data-md-scrollfix>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/sorting_algorithm/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
11.1 ソートアルゴリズム
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/selection_sort/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
11.2 選択ソート
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/bubble_sort/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
11.3 バブルソート
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/insertion_sort/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
11.4 挿入ソート
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/quick_sort/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
11.5 クイックソート
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/merge_sort/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
11.6 マージソート
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/heap_sort/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
11.7 ヒープソート
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/bucket_sort/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
11.8 バケットソート
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/counting_sort/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
11.9 計数ソート
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/radix_sort/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
11.10 基数ソート
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../../chapter_sorting/summary/" class="md-nav__link">
|
||
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
11.11 まとめ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</nav>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item md-nav__item--nested">
|
||
|
||
|
||
|
||
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_14" >
|
||
|
||
|
||
<div class="md-nav__link md-nav__container">
|
||
<a href="../../chapter_divide_and_conquer/" class="md-nav__link ">
|
||
|
||
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M17 7v2h5V7zM2 9v6h5V9zm10 0v2H9v2h3v2l3-3zm5 2v2h5v-2zm0 4v2h5v-2z"/></svg>
|
||
|
||
<span class="md-ellipsis">
|
||
|
||
|
||
第 12 章 分割統治
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
|
||
|
||
<label class="md-nav__link " for="__nav_14" id="__nav_14_label" tabindex="0">
|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
</div>
|
||
|
||
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<span class="md-nav__icon md-icon"></span>
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|
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第 12 章 分割統治
|
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|
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|
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</label>
|
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<ul class="md-nav__list" data-md-scrollfix>
|
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<li class="md-nav__item">
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<a href="../../chapter_divide_and_conquer/divide_and_conquer/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
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|
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|
||
12.1 分割統治法
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
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|
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|
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|
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|
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<li class="md-nav__item">
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<a href="../../chapter_divide_and_conquer/binary_search_recur/" class="md-nav__link">
|
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|
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<span class="md-ellipsis">
|
||
|
||
|
||
12.2 分割統治探索戦略
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
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<a href="../../chapter_divide_and_conquer/build_binary_tree_problem/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
||
|
||
|
||
12.3 二分木の構築問題
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
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|
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|
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<li class="md-nav__item">
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<a href="../../chapter_divide_and_conquer/hanota_problem/" class="md-nav__link">
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<span class="md-ellipsis">
|
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|
||
|
||
12.4 ハノイの塔の問題
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
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<li class="md-nav__item">
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<a href="../../chapter_divide_and_conquer/summary/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
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|
||
|
||
12.5 まとめ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
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|
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|
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</ul>
|
||
</nav>
|
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|
||
</li>
|
||
|
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|
||
|
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|
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|
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|
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|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
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||
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||
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||
|
||
|
||
|
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<div class="md-nav__link md-nav__container">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M18 15a3 3 0 0 1 3 3 3 3 0 0 1-3 3 2.99 2.99 0 0 1-2.83-2H14v-2h1.17c.41-1.17 1.52-2 2.83-2m0 2a1 1 0 0 0-1 1 1 1 0 0 0 1 1 1 1 0 0 0 1-1 1 1 0 0 0-1-1m0-9a1.43 1.43 0 0 0 1.43-1.43 1.43 1.43 0 1 0-2.86 0A1.43 1.43 0 0 0 18 8m0-5.43a4 4 0 0 1 4 4C22 9.56 18 14 18 14s-4-4.44-4-7.43a4 4 0 0 1 4-4M8.83 17H10v2H8.83A2.99 2.99 0 0 1 6 21a3 3 0 0 1-3-3c0-1.31.83-2.42 2-2.83V14h2v1.17c.85.3 1.53.98 1.83 1.83M6 17a1 1 0 0 0-1 1 1 1 0 0 0 1 1 1 1 0 0 0 1-1 1 1 0 0 0-1-1M6 3a3 3 0 0 1 3 3c0 1.31-.83 2.42-2 2.83V10H5V8.83A2.99 2.99 0 0 1 3 6a3 3 0 0 1 3-3m0 2a1 1 0 0 0-1 1 1 1 0 0 0 1 1 1 1 0 0 0 1-1 1 1 0 0 0-1-1m5 14v-2h2v2zm-4-6H5v-2h2z"/></svg>
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|
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<span class="md-ellipsis">
|
||
|
||
|
||
第 13 章 バックトラッキング
|
||
|
||
|
||
|
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</span>
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|
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|
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</a>
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<span class="md-nav__icon md-icon"></span>
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|
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第 13 章 バックトラッキング
|
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|
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|
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</label>
|
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../../chapter_backtracking/backtracking_algorithm/" class="md-nav__link">
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<span class="md-ellipsis">
|
||
|
||
|
||
13.1 バックトラッキングアルゴリズム
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_backtracking/permutations_problem/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
||
|
||
|
||
13.2 全順列問題
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
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|
||
|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_backtracking/subset_sum_problem/" class="md-nav__link">
|
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|
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|
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|
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<span class="md-ellipsis">
|
||
|
||
|
||
13.3 部分和問題
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
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<a href="../../chapter_backtracking/n_queens_problem/" class="md-nav__link">
|
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|
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<span class="md-ellipsis">
|
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|
||
|
||
13.4 n クイーン問題
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
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|
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<li class="md-nav__item">
|
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<a href="../../chapter_backtracking/summary/" class="md-nav__link">
|
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|
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|
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|
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<span class="md-ellipsis">
|
||
|
||
|
||
13.5 まとめ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
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|
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|
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|
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|
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</ul>
|
||
</nav>
|
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|
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||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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<div class="md-nav__link md-nav__container">
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<span class="md-ellipsis">
|
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|
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|
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第 14 章 動的計画法
|
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|
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|
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|
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</a>
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<span class="md-nav__icon md-icon"></span>
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第 14 章 動的計画法
|
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|
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<span class="md-ellipsis">
|
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|
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|
||
14.1 動的計画法入門
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
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</li>
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<li class="md-nav__item">
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<a href="../../chapter_dynamic_programming/dp_problem_features/" class="md-nav__link">
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<span class="md-ellipsis">
|
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|
||
|
||
14.2 動的計画法の問題特性
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
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|
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<li class="md-nav__item">
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<a href="../../chapter_dynamic_programming/dp_solution_pipeline/" class="md-nav__link">
|
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<span class="md-ellipsis">
|
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|
||
|
||
14.3 動的計画法の問題解決の考え方
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
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<li class="md-nav__item">
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<a href="../../chapter_dynamic_programming/knapsack_problem/" class="md-nav__link">
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<span class="md-ellipsis">
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|
||
|
||
14.4 0-1 ナップサック問題
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
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<li class="md-nav__item">
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|
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|
||
14.5 完全ナップサック問題
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
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|
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<li class="md-nav__item">
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<a href="../../chapter_dynamic_programming/edit_distance_problem/" class="md-nav__link">
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<span class="md-ellipsis">
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|
||
|
||
14.6 編集距離問題
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
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<li class="md-nav__item">
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<a href="../../chapter_dynamic_programming/summary/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
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|
||
|
||
14.7 まとめ
|
||
|
||
|
||
|
||
</span>
|
||
|
||
|
||
|
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</a>
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|
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|
||
|
||
|
||
|
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|
||
|
||
|
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|
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|
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|
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|
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|
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<span class="md-ellipsis">
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|
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|
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第 15 章 貪欲法
|
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|
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|
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|
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</span>
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</a>
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第 15 章 貪欲法
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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|
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15.1 貪欲法
|
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|
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|
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|
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</span>
|
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|
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|
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|
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</a>
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</li>
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<h1 id="43">4.3 リスト<a class="headerlink" href="#43" title="Permanent link">¶</a></h1>
|
||
<p><u>リスト（list）</u>は抽象的なデータ構造の概念であり、要素の順序付き集合を表す。要素のアクセス、更新、追加、削除、走査などの操作をサポートし、利用者は容量制限の問題を考慮する必要がない。リストは連結リストまたは配列に基づいて実装できる。</p>
|
||
<ul>
|
||
<li>連結リストは本質的にリストと見なすことができ、要素の追加・削除・参照・更新をサポートし、柔軟に動的拡張できる。</li>
|
||
<li>配列も要素の追加・削除・参照・更新をサポートするが、長さが不変であるため、長さ制限のあるリストとしか見なせない。</li>
|
||
</ul>
|
||
<p>配列でリストを実装する場合、<strong>長さが不変である性質によってリストの実用性が低下する</strong>。これは、通常は事前にどれだけのデータを格納する必要があるかを決められず、適切なリスト長を選びにくいためである。長さが小さすぎると利用要件を満たせない可能性が高く、大きすぎるとメモリ空間の浪費を招く。</p>
|
||
<p>この問題を解決するために、<u>動的配列（dynamic array）</u>を用いてリストを実装できる。これは配列の各種利点を引き継ぎつつ、プログラム実行中に動的な拡張を行える。</p>
|
||
<p>実際には、<strong>多くのプログラミング言語の標準ライブラリが提供するリストは動的配列に基づいて実装されている</strong>。たとえば、Python の <code>list</code> 、Java の <code>ArrayList</code> 、C++ の <code>vector</code> 、C# の <code>List</code> などである。以降の議論では、「リスト」と「動的配列」を同じ概念として扱う。</p>
|
||
<h2 id="431">4.3.1 リストの基本操作<a class="headerlink" href="#431" title="Permanent link">¶</a></h2>
|
||
<h3 id="1">1. リストの初期化<a class="headerlink" href="#1" title="Permanent link">¶</a></h3>
|
||
<p>通常は「初期値なし」と「初期値あり」の 2 つの初期化方法を用いる。</p>
|
||
<div class="tabbed-set tabbed-alternate" data-tabs="1:13"><input checked="checked" id="__tabbed_1_1" name="__tabbed_1" type="radio" /><input id="__tabbed_1_2" name="__tabbed_1" type="radio" /><input id="__tabbed_1_3" name="__tabbed_1" type="radio" /><input id="__tabbed_1_4" name="__tabbed_1" type="radio" /><input id="__tabbed_1_5" name="__tabbed_1" type="radio" /><input id="__tabbed_1_6" name="__tabbed_1" type="radio" /><input id="__tabbed_1_7" name="__tabbed_1" type="radio" /><input id="__tabbed_1_8" name="__tabbed_1" type="radio" /><input id="__tabbed_1_9" name="__tabbed_1" type="radio" /><input id="__tabbed_1_10" name="__tabbed_1" type="radio" /><input id="__tabbed_1_11" name="__tabbed_1" type="radio" /><input id="__tabbed_1_12" name="__tabbed_1" type="radio" /><input id="__tabbed_1_13" name="__tabbed_1" type="radio" /><div class="tabbed-labels"><label for="__tabbed_1_1">Python</label><label for="__tabbed_1_2">C++</label><label for="__tabbed_1_3">Java</label><label for="__tabbed_1_4">C#</label><label for="__tabbed_1_5">Go</label><label for="__tabbed_1_6">Swift</label><label for="__tabbed_1_7">JS</label><label for="__tabbed_1_8">TS</label><label for="__tabbed_1_9">Dart</label><label for="__tabbed_1_10">Rust</label><label for="__tabbed_1_11">C</label><label for="__tabbed_1_12">Kotlin</label><label for="__tabbed_1_13">Ruby</label></div>
|
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<div class="tabbed-content">
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a><span class="c1"># リストを初期化</span>
|
||
<a id="__codelineno-0-2" name="__codelineno-0-2" href="#__codelineno-0-2"></a><span class="c1"># 初期値なし</span>
|
||
<a id="__codelineno-0-3" name="__codelineno-0-3" href="#__codelineno-0-3"></a><span class="n">nums1</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span>
|
||
<a id="__codelineno-0-4" name="__codelineno-0-4" href="#__codelineno-0-4"></a><span class="c1"># 初期値あり</span>
|
||
<a id="__codelineno-0-5" name="__codelineno-0-5" href="#__codelineno-0-5"></a><span class="n">nums</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="mi">1</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">4</span><span class="p">]</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-1-1" name="__codelineno-1-1" href="#__codelineno-1-1"></a><span class="cm">/* リストを初期化 */</span>
|
||
<a id="__codelineno-1-2" name="__codelineno-1-2" href="#__codelineno-1-2"></a><span class="c1">// なお、C++ では vector が本稿でいう nums に相当する</span>
|
||
<a id="__codelineno-1-3" name="__codelineno-1-3" href="#__codelineno-1-3"></a><span class="c1">// 初期値なし</span>
|
||
<a id="__codelineno-1-4" name="__codelineno-1-4" href="#__codelineno-1-4"></a><span class="n">vector</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums1</span><span class="p">;</span>
|
||
<a id="__codelineno-1-5" name="__codelineno-1-5" href="#__codelineno-1-5"></a><span class="c1">// 初期値あり</span>
|
||
<a id="__codelineno-1-6" name="__codelineno-1-6" href="#__codelineno-1-6"></a><span class="n">vector</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="w"> </span><span class="p">};</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-2-1" name="__codelineno-2-1" href="#__codelineno-2-1"></a><span class="cm">/* リストを初期化 */</span>
|
||
<a id="__codelineno-2-2" name="__codelineno-2-2" href="#__codelineno-2-2"></a><span class="c1">// 初期値なし</span>
|
||
<a id="__codelineno-2-3" name="__codelineno-2-3" href="#__codelineno-2-3"></a><span class="n">List</span><span class="o"><</span><span class="n">Integer</span><span class="o">></span><span class="w"> </span><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><></span><span class="p">();</span>
|
||
<a id="__codelineno-2-4" name="__codelineno-2-4" href="#__codelineno-2-4"></a><span class="c1">// 初期値あり（配列の要素型は int[] のラッパークラスである Integer[] である必要があることに注意）</span>
|
||
<a id="__codelineno-2-5" name="__codelineno-2-5" href="#__codelineno-2-5"></a><span class="n">Integer</span><span class="o">[]</span><span class="w"> </span><span class="n">numbers</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">Integer</span><span class="o">[]</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="w"> </span><span class="p">};</span>
|
||
<a id="__codelineno-2-6" name="__codelineno-2-6" href="#__codelineno-2-6"></a><span class="n">List</span><span class="o"><</span><span class="n">Integer</span><span class="o">></span><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><></span><span class="p">(</span><span class="n">Arrays</span><span class="p">.</span><span class="na">asList</span><span class="p">(</span><span class="n">numbers</span><span class="p">));</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-3-1" name="__codelineno-3-1" href="#__codelineno-3-1"></a><span class="cm">/* リストを初期化 */</span>
|
||
<a id="__codelineno-3-2" name="__codelineno-3-2" href="#__codelineno-3-2"></a><span class="c1">// 初期値なし</span>
|
||
<a id="__codelineno-3-3" name="__codelineno-3-3" href="#__codelineno-3-3"></a><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[];</span>
|
||
<a id="__codelineno-3-4" name="__codelineno-3-4" href="#__codelineno-3-4"></a><span class="c1">// 初期値あり</span>
|
||
<a id="__codelineno-3-5" name="__codelineno-3-5" href="#__codelineno-3-5"></a><span class="kt">int</span><span class="p">[]</span><span class="w"> </span><span class="n">numbers</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="p">];</span>
|
||
<a id="__codelineno-3-6" name="__codelineno-3-6" href="#__codelineno-3-6"></a><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[..</span><span class="w"> </span><span class="n">numbers</span><span class="p">];</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-4-1" name="__codelineno-4-1" href="#__codelineno-4-1"></a><span class="cm">/* リストを初期化 */</span>
|
||
<a id="__codelineno-4-2" name="__codelineno-4-2" href="#__codelineno-4-2"></a><span class="c1">// 初期値なし</span>
|
||
<a id="__codelineno-4-3" name="__codelineno-4-3" href="#__codelineno-4-3"></a><span class="nx">nums1</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="p">[]</span><span class="kt">int</span><span class="p">{}</span>
|
||
<a id="__codelineno-4-4" name="__codelineno-4-4" href="#__codelineno-4-4"></a><span class="c1">// 初期値あり</span>
|
||
<a id="__codelineno-4-5" name="__codelineno-4-5" href="#__codelineno-4-5"></a><span class="nx">nums</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="p">[]</span><span class="kt">int</span><span class="p">{</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-5-1" name="__codelineno-5-1" href="#__codelineno-5-1"></a><span class="cm">/* リストを初期化 */</span>
|
||
<a id="__codelineno-5-2" name="__codelineno-5-2" href="#__codelineno-5-2"></a><span class="c1">// 初期値なし</span>
|
||
<a id="__codelineno-5-3" name="__codelineno-5-3" href="#__codelineno-5-3"></a><span class="kd">let</span><span class="w"> </span><span class="nv">nums1</span><span class="p">:</span><span class="w"> </span><span class="p">[</span><span class="nb">Int</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="p">[]</span>
|
||
<a id="__codelineno-5-4" name="__codelineno-5-4" href="#__codelineno-5-4"></a><span class="c1">// 初期値あり</span>
|
||
<a id="__codelineno-5-5" name="__codelineno-5-5" href="#__codelineno-5-5"></a><span class="kd">var</span><span class="w"> </span><span class="nv">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="p">[</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="p">]</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-6-1" name="__codelineno-6-1" href="#__codelineno-6-1"></a><span class="cm">/* リストを初期化 */</span>
|
||
<a id="__codelineno-6-2" name="__codelineno-6-2" href="#__codelineno-6-2"></a><span class="c1">// 初期値なし</span>
|
||
<a id="__codelineno-6-3" name="__codelineno-6-3" href="#__codelineno-6-3"></a><span class="kd">const</span><span class="w"> </span><span class="nx">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[];</span>
|
||
<a id="__codelineno-6-4" name="__codelineno-6-4" href="#__codelineno-6-4"></a><span class="c1">// 初期値あり</span>
|
||
<a id="__codelineno-6-5" name="__codelineno-6-5" href="#__codelineno-6-5"></a><span class="kd">const</span><span class="w"> </span><span class="nx">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="mf">1</span><span class="p">,</span><span class="w"> </span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">2</span><span class="p">,</span><span class="w"> </span><span class="mf">5</span><span class="p">,</span><span class="w"> </span><span class="mf">4</span><span class="p">];</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-7-1" name="__codelineno-7-1" href="#__codelineno-7-1"></a><span class="cm">/* リストを初期化 */</span>
|
||
<a id="__codelineno-7-2" name="__codelineno-7-2" href="#__codelineno-7-2"></a><span class="c1">// 初期値なし</span>
|
||
<a id="__codelineno-7-3" name="__codelineno-7-3" href="#__codelineno-7-3"></a><span class="kd">const</span><span class="w"> </span><span class="nx">nums1</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">[]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[];</span>
|
||
<a id="__codelineno-7-4" name="__codelineno-7-4" href="#__codelineno-7-4"></a><span class="c1">// 初期値あり</span>
|
||
<a id="__codelineno-7-5" name="__codelineno-7-5" href="#__codelineno-7-5"></a><span class="kd">const</span><span class="w"> </span><span class="nx">nums</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">[]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="mf">1</span><span class="p">,</span><span class="w"> </span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">2</span><span class="p">,</span><span class="w"> </span><span class="mf">5</span><span class="p">,</span><span class="w"> </span><span class="mf">4</span><span class="p">];</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.dart</span><pre><span></span><code><a id="__codelineno-8-1" name="__codelineno-8-1" href="#__codelineno-8-1"></a><span class="cm">/* リストを初期化 */</span>
|
||
<a id="__codelineno-8-2" name="__codelineno-8-2" href="#__codelineno-8-2"></a><span class="c1">// 初期値なし</span>
|
||
<a id="__codelineno-8-3" name="__codelineno-8-3" href="#__codelineno-8-3"></a><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[];</span>
|
||
<a id="__codelineno-8-4" name="__codelineno-8-4" href="#__codelineno-8-4"></a><span class="c1">// 初期値あり</span>
|
||
<a id="__codelineno-8-5" name="__codelineno-8-5" href="#__codelineno-8-5"></a><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="m">1</span><span class="p">,</span><span class="w"> </span><span class="m">3</span><span class="p">,</span><span class="w"> </span><span class="m">2</span><span class="p">,</span><span class="w"> </span><span class="m">5</span><span class="p">,</span><span class="w"> </span><span class="m">4</span><span class="p">];</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rs</span><pre><span></span><code><a id="__codelineno-9-1" name="__codelineno-9-1" href="#__codelineno-9-1"></a><span class="cm">/* リストを初期化 */</span>
|
||
<a id="__codelineno-9-2" name="__codelineno-9-2" href="#__codelineno-9-2"></a><span class="c1">// 初期値なし</span>
|
||
<a id="__codelineno-9-3" name="__codelineno-9-3" href="#__codelineno-9-3"></a><span class="kd">let</span><span class="w"> </span><span class="n">nums1</span><span class="p">:</span><span class="w"> </span><span class="nb">Vec</span><span class="o"><</span><span class="kt">i32</span><span class="o">></span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">Vec</span><span class="p">::</span><span class="n">new</span><span class="p">();</span>
|
||
<a id="__codelineno-9-4" name="__codelineno-9-4" href="#__codelineno-9-4"></a><span class="c1">// 初期値あり</span>
|
||
<a id="__codelineno-9-5" name="__codelineno-9-5" href="#__codelineno-9-5"></a><span class="kd">let</span><span class="w"> </span><span class="n">nums</span><span class="p">:</span><span class="w"> </span><span class="nb">Vec</span><span class="o"><</span><span class="kt">i32</span><span class="o">></span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="fm">vec!</span><span class="p">[</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="p">];</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-10-1" name="__codelineno-10-1" href="#__codelineno-10-1"></a><span class="c1">// C には組み込みの動的配列がない</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.kt</span><pre><span></span><code><a id="__codelineno-11-1" name="__codelineno-11-1" href="#__codelineno-11-1"></a><span class="cm">/* リストを初期化 */</span>
|
||
<a id="__codelineno-11-2" name="__codelineno-11-2" href="#__codelineno-11-2"></a><span class="c1">// 初期値なし</span>
|
||
<a id="__codelineno-11-3" name="__codelineno-11-3" href="#__codelineno-11-3"></a><span class="kd">var</span><span class="w"> </span><span class="nv">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">listOf</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="p">()</span>
|
||
<a id="__codelineno-11-4" name="__codelineno-11-4" href="#__codelineno-11-4"></a><span class="c1">// 初期値あり</span>
|
||
<a id="__codelineno-11-5" name="__codelineno-11-5" href="#__codelineno-11-5"></a><span class="kd">var</span><span class="w"> </span><span class="nv">numbers</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arrayOf</span><span class="p">(</span><span class="m">1</span><span class="p">,</span><span class="w"> </span><span class="m">3</span><span class="p">,</span><span class="w"> </span><span class="m">2</span><span class="p">,</span><span class="w"> </span><span class="m">5</span><span class="p">,</span><span class="w"> </span><span class="m">4</span><span class="p">)</span>
|
||
<a id="__codelineno-11-6" name="__codelineno-11-6" href="#__codelineno-11-6"></a><span class="kd">var</span><span class="w"> </span><span class="nv">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">numbers</span><span class="p">.</span><span class="na">toMutableList</span><span class="p">()</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rb</span><pre><span></span><code><a id="__codelineno-12-1" name="__codelineno-12-1" href="#__codelineno-12-1"></a><span class="c1"># リストを初期化</span>
|
||
<a id="__codelineno-12-2" name="__codelineno-12-2" href="#__codelineno-12-2"></a><span class="c1"># 初期値なし</span>
|
||
<a id="__codelineno-12-3" name="__codelineno-12-3" href="#__codelineno-12-3"></a><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">[]</span>
|
||
<a id="__codelineno-12-4" name="__codelineno-12-4" href="#__codelineno-12-4"></a><span class="c1"># 初期値あり</span>
|
||
<a id="__codelineno-12-5" name="__codelineno-12-5" href="#__codelineno-12-5"></a><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">[</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="o">]</span>
|
||
</code></pre></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<details class="pythontutor">
|
||
<summary>可視化実行</summary>
|
||
<p>https://pythontutor.com/render.html#code=%22%22%22Driver%20Code%22%22%22%0Aif%20__name__%20%3D%3D%20%22__main__%22%3A%0A%20%20%20%20%23%20%E5%88%9D%E5%A7%8B%E5%8C%96%E5%88%97%E8%A1%A8%0A%20%20%20%20%23%20%E6%97%A0%E5%88%9D%E5%A7%8B%E5%80%BC%0A%20%20%20%20nums1%20%3D%20%5B%5D%0A%20%20%20%20%23%20%E6%9C%89%E5%88%9D%E5%A7%8B%E5%80%BC%0A%20%20%20%20nums%20%3D%20%5B1,%203,%202,%205,%204%5D&cumulative=false&curInstr=4&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=311&rawInputLstJSON=%5B%5D&textReferences=false</p>
|
||
</details>
|
||
<h3 id="2">2. 要素へのアクセス<a class="headerlink" href="#2" title="Permanent link">¶</a></h3>
|
||
<p>リストの本質は配列であるため、要素へのアクセスと更新は <span class="arithmatex">\(O(1)\)</span> 時間で行え、効率が高い。</p>
|
||
<div class="tabbed-set tabbed-alternate" data-tabs="2:13"><input checked="checked" id="__tabbed_2_1" name="__tabbed_2" type="radio" /><input id="__tabbed_2_2" name="__tabbed_2" type="radio" /><input id="__tabbed_2_3" name="__tabbed_2" type="radio" /><input id="__tabbed_2_4" name="__tabbed_2" type="radio" /><input id="__tabbed_2_5" name="__tabbed_2" type="radio" /><input id="__tabbed_2_6" name="__tabbed_2" type="radio" /><input id="__tabbed_2_7" name="__tabbed_2" type="radio" /><input id="__tabbed_2_8" name="__tabbed_2" type="radio" /><input id="__tabbed_2_9" name="__tabbed_2" type="radio" /><input id="__tabbed_2_10" name="__tabbed_2" type="radio" /><input id="__tabbed_2_11" name="__tabbed_2" type="radio" /><input id="__tabbed_2_12" name="__tabbed_2" type="radio" /><input id="__tabbed_2_13" name="__tabbed_2" type="radio" /><div class="tabbed-labels"><label for="__tabbed_2_1">Python</label><label for="__tabbed_2_2">C++</label><label for="__tabbed_2_3">Java</label><label for="__tabbed_2_4">C#</label><label for="__tabbed_2_5">Go</label><label for="__tabbed_2_6">Swift</label><label for="__tabbed_2_7">JS</label><label for="__tabbed_2_8">TS</label><label for="__tabbed_2_9">Dart</label><label for="__tabbed_2_10">Rust</label><label for="__tabbed_2_11">C</label><label for="__tabbed_2_12">Kotlin</label><label for="__tabbed_2_13">Ruby</label></div>
|
||
<div class="tabbed-content">
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-13-1" name="__codelineno-13-1" href="#__codelineno-13-1"></a><span class="c1"># 要素にアクセス</span>
|
||
<a id="__codelineno-13-2" name="__codelineno-13-2" href="#__codelineno-13-2"></a><span class="n">num</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="c1"># インデックス 1 の要素にアクセス</span>
|
||
<a id="__codelineno-13-3" name="__codelineno-13-3" href="#__codelineno-13-3"></a>
|
||
<a id="__codelineno-13-4" name="__codelineno-13-4" href="#__codelineno-13-4"></a><span class="c1"># 要素を更新</span>
|
||
<a id="__codelineno-13-5" name="__codelineno-13-5" href="#__codelineno-13-5"></a><span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span> <span class="c1"># インデックス 1 の要素を 0 に更新</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-14-1" name="__codelineno-14-1" href="#__codelineno-14-1"></a><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-14-2" name="__codelineno-14-2" href="#__codelineno-14-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// インデックス 1 の要素にアクセス</span>
|
||
<a id="__codelineno-14-3" name="__codelineno-14-3" href="#__codelineno-14-3"></a>
|
||
<a id="__codelineno-14-4" name="__codelineno-14-4" href="#__codelineno-14-4"></a><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-14-5" name="__codelineno-14-5" href="#__codelineno-14-5"></a><span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// インデックス 1 の要素を 0 に更新</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-15-1" name="__codelineno-15-1" href="#__codelineno-15-1"></a><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-15-2" name="__codelineno-15-2" href="#__codelineno-15-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="na">get</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 1 の要素にアクセス</span>
|
||
<a id="__codelineno-15-3" name="__codelineno-15-3" href="#__codelineno-15-3"></a>
|
||
<a id="__codelineno-15-4" name="__codelineno-15-4" href="#__codelineno-15-4"></a><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-15-5" name="__codelineno-15-5" href="#__codelineno-15-5"></a><span class="n">nums</span><span class="p">.</span><span class="na">set</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 1 の要素を 0 に更新</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-16-1" name="__codelineno-16-1" href="#__codelineno-16-1"></a><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-16-2" name="__codelineno-16-2" href="#__codelineno-16-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// インデックス 1 の要素にアクセス</span>
|
||
<a id="__codelineno-16-3" name="__codelineno-16-3" href="#__codelineno-16-3"></a>
|
||
<a id="__codelineno-16-4" name="__codelineno-16-4" href="#__codelineno-16-4"></a><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-16-5" name="__codelineno-16-5" href="#__codelineno-16-5"></a><span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// インデックス 1 の要素を 0 に更新</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-17-1" name="__codelineno-17-1" href="#__codelineno-17-1"></a><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-17-2" name="__codelineno-17-2" href="#__codelineno-17-2"></a><span class="nx">num</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="c1">// インデックス 1 の要素にアクセス</span>
|
||
<a id="__codelineno-17-3" name="__codelineno-17-3" href="#__codelineno-17-3"></a>
|
||
<a id="__codelineno-17-4" name="__codelineno-17-4" href="#__codelineno-17-4"></a><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-17-5" name="__codelineno-17-5" href="#__codelineno-17-5"></a><span class="nx">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="c1">// インデックス 1 の要素を 0 に更新</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-18-1" name="__codelineno-18-1" href="#__codelineno-18-1"></a><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-18-2" name="__codelineno-18-2" href="#__codelineno-18-2"></a><span class="kd">let</span><span class="w"> </span><span class="nv">num</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="c1">// インデックス 1 の要素にアクセス</span>
|
||
<a id="__codelineno-18-3" name="__codelineno-18-3" href="#__codelineno-18-3"></a>
|
||
<a id="__codelineno-18-4" name="__codelineno-18-4" href="#__codelineno-18-4"></a><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-18-5" name="__codelineno-18-5" href="#__codelineno-18-5"></a><span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="c1">// インデックス 1 の要素を 0 に更新</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-19-1" name="__codelineno-19-1" href="#__codelineno-19-1"></a><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-19-2" name="__codelineno-19-2" href="#__codelineno-19-2"></a><span class="kd">const</span><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="mf">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// インデックス 1 の要素にアクセス</span>
|
||
<a id="__codelineno-19-3" name="__codelineno-19-3" href="#__codelineno-19-3"></a>
|
||
<a id="__codelineno-19-4" name="__codelineno-19-4" href="#__codelineno-19-4"></a><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-19-5" name="__codelineno-19-5" href="#__codelineno-19-5"></a><span class="nx">nums</span><span class="p">[</span><span class="mf">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// インデックス 1 の要素を 0 に更新</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-20-1" name="__codelineno-20-1" href="#__codelineno-20-1"></a><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-20-2" name="__codelineno-20-2" href="#__codelineno-20-2"></a><span class="kd">const</span><span class="w"> </span><span class="nx">num</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="mf">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// インデックス 1 の要素にアクセス</span>
|
||
<a id="__codelineno-20-3" name="__codelineno-20-3" href="#__codelineno-20-3"></a>
|
||
<a id="__codelineno-20-4" name="__codelineno-20-4" href="#__codelineno-20-4"></a><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-20-5" name="__codelineno-20-5" href="#__codelineno-20-5"></a><span class="nx">nums</span><span class="p">[</span><span class="mf">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// インデックス 1 の要素を 0 に更新</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.dart</span><pre><span></span><code><a id="__codelineno-21-1" name="__codelineno-21-1" href="#__codelineno-21-1"></a><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-21-2" name="__codelineno-21-2" href="#__codelineno-21-2"></a><span class="kt">int</span><span class="w"> </span><span class="kt">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="m">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// インデックス 1 の要素にアクセス</span>
|
||
<a id="__codelineno-21-3" name="__codelineno-21-3" href="#__codelineno-21-3"></a>
|
||
<a id="__codelineno-21-4" name="__codelineno-21-4" href="#__codelineno-21-4"></a><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-21-5" name="__codelineno-21-5" href="#__codelineno-21-5"></a><span class="n">nums</span><span class="p">[</span><span class="m">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// インデックス 1 の要素を 0 に更新</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rs</span><pre><span></span><code><a id="__codelineno-22-1" name="__codelineno-22-1" href="#__codelineno-22-1"></a><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-22-2" name="__codelineno-22-2" href="#__codelineno-22-2"></a><span class="kd">let</span><span class="w"> </span><span class="n">num</span><span class="p">:</span><span class="w"> </span><span class="kt">i32</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// インデックス 1 の要素にアクセス</span>
|
||
<a id="__codelineno-22-3" name="__codelineno-22-3" href="#__codelineno-22-3"></a><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-22-4" name="__codelineno-22-4" href="#__codelineno-22-4"></a><span class="n">nums</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// インデックス 1 の要素を 0 に更新</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-23-1" name="__codelineno-23-1" href="#__codelineno-23-1"></a><span class="c1">// C には組み込みの動的配列がない</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.kt</span><pre><span></span><code><a id="__codelineno-24-1" name="__codelineno-24-1" href="#__codelineno-24-1"></a><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-24-2" name="__codelineno-24-2" href="#__codelineno-24-2"></a><span class="kd">val</span><span class="w"> </span><span class="nv">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="o">[</span><span class="m">1</span><span class="o">]</span><span class="w"> </span><span class="c1">// インデックス 1 の要素にアクセス</span>
|
||
<a id="__codelineno-24-3" name="__codelineno-24-3" href="#__codelineno-24-3"></a><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-24-4" name="__codelineno-24-4" href="#__codelineno-24-4"></a><span class="n">nums</span><span class="o">[</span><span class="m">1</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="w"> </span><span class="c1">// インデックス 1 の要素を 0 に更新</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rb</span><pre><span></span><code><a id="__codelineno-25-1" name="__codelineno-25-1" href="#__codelineno-25-1"></a><span class="c1"># 要素にアクセス</span>
|
||
<a id="__codelineno-25-2" name="__codelineno-25-2" href="#__codelineno-25-2"></a><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="o">[</span><span class="mi">1</span><span class="o">]</span><span class="w"> </span><span class="c1"># インデックス 1 の要素にアクセス</span>
|
||
<a id="__codelineno-25-3" name="__codelineno-25-3" href="#__codelineno-25-3"></a><span class="c1"># 要素を更新</span>
|
||
<a id="__codelineno-25-4" name="__codelineno-25-4" href="#__codelineno-25-4"></a><span class="n">nums</span><span class="o">[</span><span class="mi">1</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="c1"># インデックス 1 の要素を 0 に更新</span>
|
||
</code></pre></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<details class="pythontutor">
|
||
<summary>可視化実行</summary>
|
||
<p>https://pythontutor.com/render.html#code=%22%22%22Driver%20Code%22%22%22%0Aif%20__name__%20%3D%3D%20%22__main__%22%3A%0A%20%20%20%20%23%20%E5%88%9D%E5%A7%8B%E5%8C%96%E5%88%97%E8%A1%A8%0A%20%20%20%20nums%20%3D%20%5B1,%203,%202,%205,%204%5D%0A%0A%20%20%20%20%23%20%E8%AE%BF%E9%97%AE%E5%85%83%E7%B4%A0%0A%20%20%20%20num%20%3D%20nums%5B1%5D%20%20%23%20%E8%AE%BF%E9%97%AE%E7%B4%A2%E5%BC%95%201%20%E5%A4%84%E7%9A%84%E5%85%83%E7%B4%A0%0A%0A%20%20%20%20%23%20%E6%9B%B4%E6%96%B0%E5%85%83%E7%B4%A0%0A%20%20%20%20nums%5B1%5D%20%3D%200%20%20%20%20%23%20%E5%B0%86%E7%B4%A2%E5%BC%95%201%20%E5%A4%84%E7%9A%84%E5%85%83%E7%B4%A0%E6%9B%B4%E6%96%B0%E4%B8%BA%200&cumulative=false&curInstr=3&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=311&rawInputLstJSON=%5B%5D&textReferences=false</p>
|
||
</details>
|
||
<h3 id="3">3. 要素の挿入と削除<a class="headerlink" href="#3" title="Permanent link">¶</a></h3>
|
||
<p>配列と比べて、リストでは要素を自由に追加・削除できる。リスト末尾への要素追加の時間計算量は <span class="arithmatex">\(O(1)\)</span> だが、要素の挿入と削除の効率は依然として配列と同じで、時間計算量は <span class="arithmatex">\(O(n)\)</span> である。</p>
|
||
<div class="tabbed-set tabbed-alternate" data-tabs="3:13"><input checked="checked" id="__tabbed_3_1" name="__tabbed_3" type="radio" /><input id="__tabbed_3_2" name="__tabbed_3" type="radio" /><input id="__tabbed_3_3" name="__tabbed_3" type="radio" /><input id="__tabbed_3_4" name="__tabbed_3" type="radio" /><input id="__tabbed_3_5" name="__tabbed_3" type="radio" /><input id="__tabbed_3_6" name="__tabbed_3" type="radio" /><input id="__tabbed_3_7" name="__tabbed_3" type="radio" /><input id="__tabbed_3_8" name="__tabbed_3" type="radio" /><input id="__tabbed_3_9" name="__tabbed_3" type="radio" /><input id="__tabbed_3_10" name="__tabbed_3" type="radio" /><input id="__tabbed_3_11" name="__tabbed_3" type="radio" /><input id="__tabbed_3_12" name="__tabbed_3" type="radio" /><input id="__tabbed_3_13" name="__tabbed_3" type="radio" /><div class="tabbed-labels"><label for="__tabbed_3_1">Python</label><label for="__tabbed_3_2">C++</label><label for="__tabbed_3_3">Java</label><label for="__tabbed_3_4">C#</label><label for="__tabbed_3_5">Go</label><label for="__tabbed_3_6">Swift</label><label for="__tabbed_3_7">JS</label><label for="__tabbed_3_8">TS</label><label for="__tabbed_3_9">Dart</label><label for="__tabbed_3_10">Rust</label><label for="__tabbed_3_11">C</label><label for="__tabbed_3_12">Kotlin</label><label for="__tabbed_3_13">Ruby</label></div>
|
||
<div class="tabbed-content">
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-26-1" name="__codelineno-26-1" href="#__codelineno-26-1"></a><span class="c1"># リストをクリア</span>
|
||
<a id="__codelineno-26-2" name="__codelineno-26-2" href="#__codelineno-26-2"></a><span class="n">nums</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
|
||
<a id="__codelineno-26-3" name="__codelineno-26-3" href="#__codelineno-26-3"></a>
|
||
<a id="__codelineno-26-4" name="__codelineno-26-4" href="#__codelineno-26-4"></a><span class="c1"># 末尾に要素を追加</span>
|
||
<a id="__codelineno-26-5" name="__codelineno-26-5" href="#__codelineno-26-5"></a><span class="n">nums</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||
<a id="__codelineno-26-6" name="__codelineno-26-6" href="#__codelineno-26-6"></a><span class="n">nums</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span>
|
||
<a id="__codelineno-26-7" name="__codelineno-26-7" href="#__codelineno-26-7"></a><span class="n">nums</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span>
|
||
<a id="__codelineno-26-8" name="__codelineno-26-8" href="#__codelineno-26-8"></a><span class="n">nums</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">5</span><span class="p">)</span>
|
||
<a id="__codelineno-26-9" name="__codelineno-26-9" href="#__codelineno-26-9"></a><span class="n">nums</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">4</span><span class="p">)</span>
|
||
<a id="__codelineno-26-10" name="__codelineno-26-10" href="#__codelineno-26-10"></a>
|
||
<a id="__codelineno-26-11" name="__codelineno-26-11" href="#__codelineno-26-11"></a><span class="c1"># 途中に要素を挿入</span>
|
||
<a id="__codelineno-26-12" name="__codelineno-26-12" href="#__codelineno-26-12"></a><span class="n">nums</span><span class="o">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">6</span><span class="p">)</span> <span class="c1"># インデックス 3 に数値 6 を挿入</span>
|
||
<a id="__codelineno-26-13" name="__codelineno-26-13" href="#__codelineno-26-13"></a>
|
||
<a id="__codelineno-26-14" name="__codelineno-26-14" href="#__codelineno-26-14"></a><span class="c1"># 要素を削除</span>
|
||
<a id="__codelineno-26-15" name="__codelineno-26-15" href="#__codelineno-26-15"></a><span class="n">nums</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span> <span class="c1"># インデックス 3 の要素を削除</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-27-1" name="__codelineno-27-1" href="#__codelineno-27-1"></a><span class="cm">/* リストをクリア */</span>
|
||
<a id="__codelineno-27-2" name="__codelineno-27-2" href="#__codelineno-27-2"></a><span class="n">nums</span><span class="p">.</span><span class="n">clear</span><span class="p">();</span>
|
||
<a id="__codelineno-27-3" name="__codelineno-27-3" href="#__codelineno-27-3"></a>
|
||
<a id="__codelineno-27-4" name="__codelineno-27-4" href="#__codelineno-27-4"></a><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-27-5" name="__codelineno-27-5" href="#__codelineno-27-5"></a><span class="n">nums</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
|
||
<a id="__codelineno-27-6" name="__codelineno-27-6" href="#__codelineno-27-6"></a><span class="n">nums</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span>
|
||
<a id="__codelineno-27-7" name="__codelineno-27-7" href="#__codelineno-27-7"></a><span class="n">nums</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="mi">2</span><span class="p">);</span>
|
||
<a id="__codelineno-27-8" name="__codelineno-27-8" href="#__codelineno-27-8"></a><span class="n">nums</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="mi">5</span><span class="p">);</span>
|
||
<a id="__codelineno-27-9" name="__codelineno-27-9" href="#__codelineno-27-9"></a><span class="n">nums</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="mi">4</span><span class="p">);</span>
|
||
<a id="__codelineno-27-10" name="__codelineno-27-10" href="#__codelineno-27-10"></a>
|
||
<a id="__codelineno-27-11" name="__codelineno-27-11" href="#__codelineno-27-11"></a><span class="cm">/* 途中に要素を挿入 */</span>
|
||
<a id="__codelineno-27-12" name="__codelineno-27-12" href="#__codelineno-27-12"></a><span class="n">nums</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="n">nums</span><span class="p">.</span><span class="n">begin</span><span class="p">()</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">6</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 3 に数値 6 を挿入</span>
|
||
<a id="__codelineno-27-13" name="__codelineno-27-13" href="#__codelineno-27-13"></a>
|
||
<a id="__codelineno-27-14" name="__codelineno-27-14" href="#__codelineno-27-14"></a><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-27-15" name="__codelineno-27-15" href="#__codelineno-27-15"></a><span class="n">nums</span><span class="p">.</span><span class="n">erase</span><span class="p">(</span><span class="n">nums</span><span class="p">.</span><span class="n">begin</span><span class="p">()</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">3</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 3 の要素を削除</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-28-1" name="__codelineno-28-1" href="#__codelineno-28-1"></a><span class="cm">/* リストをクリア */</span>
|
||
<a id="__codelineno-28-2" name="__codelineno-28-2" href="#__codelineno-28-2"></a><span class="n">nums</span><span class="p">.</span><span class="na">clear</span><span class="p">();</span>
|
||
<a id="__codelineno-28-3" name="__codelineno-28-3" href="#__codelineno-28-3"></a>
|
||
<a id="__codelineno-28-4" name="__codelineno-28-4" href="#__codelineno-28-4"></a><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-28-5" name="__codelineno-28-5" href="#__codelineno-28-5"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
|
||
<a id="__codelineno-28-6" name="__codelineno-28-6" href="#__codelineno-28-6"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span>
|
||
<a id="__codelineno-28-7" name="__codelineno-28-7" href="#__codelineno-28-7"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">2</span><span class="p">);</span>
|
||
<a id="__codelineno-28-8" name="__codelineno-28-8" href="#__codelineno-28-8"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">5</span><span class="p">);</span>
|
||
<a id="__codelineno-28-9" name="__codelineno-28-9" href="#__codelineno-28-9"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">4</span><span class="p">);</span>
|
||
<a id="__codelineno-28-10" name="__codelineno-28-10" href="#__codelineno-28-10"></a>
|
||
<a id="__codelineno-28-11" name="__codelineno-28-11" href="#__codelineno-28-11"></a><span class="cm">/* 途中に要素を挿入 */</span>
|
||
<a id="__codelineno-28-12" name="__codelineno-28-12" href="#__codelineno-28-12"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">6</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 3 に数値 6 を挿入</span>
|
||
<a id="__codelineno-28-13" name="__codelineno-28-13" href="#__codelineno-28-13"></a>
|
||
<a id="__codelineno-28-14" name="__codelineno-28-14" href="#__codelineno-28-14"></a><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-28-15" name="__codelineno-28-15" href="#__codelineno-28-15"></a><span class="n">nums</span><span class="p">.</span><span class="na">remove</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 3 の要素を削除</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-29-1" name="__codelineno-29-1" href="#__codelineno-29-1"></a><span class="cm">/* リストをクリア */</span>
|
||
<a id="__codelineno-29-2" name="__codelineno-29-2" href="#__codelineno-29-2"></a><span class="n">nums</span><span class="p">.</span><span class="n">Clear</span><span class="p">();</span>
|
||
<a id="__codelineno-29-3" name="__codelineno-29-3" href="#__codelineno-29-3"></a>
|
||
<a id="__codelineno-29-4" name="__codelineno-29-4" href="#__codelineno-29-4"></a><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-29-5" name="__codelineno-29-5" href="#__codelineno-29-5"></a><span class="n">nums</span><span class="p">.</span><span class="n">Add</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
|
||
<a id="__codelineno-29-6" name="__codelineno-29-6" href="#__codelineno-29-6"></a><span class="n">nums</span><span class="p">.</span><span class="n">Add</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span>
|
||
<a id="__codelineno-29-7" name="__codelineno-29-7" href="#__codelineno-29-7"></a><span class="n">nums</span><span class="p">.</span><span class="n">Add</span><span class="p">(</span><span class="mi">2</span><span class="p">);</span>
|
||
<a id="__codelineno-29-8" name="__codelineno-29-8" href="#__codelineno-29-8"></a><span class="n">nums</span><span class="p">.</span><span class="n">Add</span><span class="p">(</span><span class="mi">5</span><span class="p">);</span>
|
||
<a id="__codelineno-29-9" name="__codelineno-29-9" href="#__codelineno-29-9"></a><span class="n">nums</span><span class="p">.</span><span class="n">Add</span><span class="p">(</span><span class="mi">4</span><span class="p">);</span>
|
||
<a id="__codelineno-29-10" name="__codelineno-29-10" href="#__codelineno-29-10"></a>
|
||
<a id="__codelineno-29-11" name="__codelineno-29-11" href="#__codelineno-29-11"></a><span class="cm">/* 途中に要素を挿入 */</span>
|
||
<a id="__codelineno-29-12" name="__codelineno-29-12" href="#__codelineno-29-12"></a><span class="n">nums</span><span class="p">.</span><span class="n">Insert</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">6</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 3 に数値 6 を挿入</span>
|
||
<a id="__codelineno-29-13" name="__codelineno-29-13" href="#__codelineno-29-13"></a>
|
||
<a id="__codelineno-29-14" name="__codelineno-29-14" href="#__codelineno-29-14"></a><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-29-15" name="__codelineno-29-15" href="#__codelineno-29-15"></a><span class="n">nums</span><span class="p">.</span><span class="n">RemoveAt</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 3 の要素を削除</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-30-1" name="__codelineno-30-1" href="#__codelineno-30-1"></a><span class="cm">/* リストをクリア */</span>
|
||
<a id="__codelineno-30-2" name="__codelineno-30-2" href="#__codelineno-30-2"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="kc">nil</span>
|
||
<a id="__codelineno-30-3" name="__codelineno-30-3" href="#__codelineno-30-3"></a>
|
||
<a id="__codelineno-30-4" name="__codelineno-30-4" href="#__codelineno-30-4"></a><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-30-5" name="__codelineno-30-5" href="#__codelineno-30-5"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">nums</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span>
|
||
<a id="__codelineno-30-6" name="__codelineno-30-6" href="#__codelineno-30-6"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">nums</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">)</span>
|
||
<a id="__codelineno-30-7" name="__codelineno-30-7" href="#__codelineno-30-7"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">nums</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">)</span>
|
||
<a id="__codelineno-30-8" name="__codelineno-30-8" href="#__codelineno-30-8"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">nums</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">)</span>
|
||
<a id="__codelineno-30-9" name="__codelineno-30-9" href="#__codelineno-30-9"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">nums</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="p">)</span>
|
||
<a id="__codelineno-30-10" name="__codelineno-30-10" href="#__codelineno-30-10"></a>
|
||
<a id="__codelineno-30-11" name="__codelineno-30-11" href="#__codelineno-30-11"></a><span class="cm">/* 途中に要素を挿入 */</span>
|
||
<a id="__codelineno-30-12" name="__codelineno-30-12" href="#__codelineno-30-12"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">nums</span><span class="p">[:</span><span class="mi">3</span><span class="p">],</span><span class="w"> </span><span class="nb">append</span><span class="p">([]</span><span class="kt">int</span><span class="p">{</span><span class="mi">6</span><span class="p">},</span><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="mi">3</span><span class="p">:]</span><span class="o">...</span><span class="p">)</span><span class="o">...</span><span class="p">)</span><span class="w"> </span><span class="c1">// インデックス 3 に数値 6 を挿入</span>
|
||
<a id="__codelineno-30-13" name="__codelineno-30-13" href="#__codelineno-30-13"></a>
|
||
<a id="__codelineno-30-14" name="__codelineno-30-14" href="#__codelineno-30-14"></a><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-30-15" name="__codelineno-30-15" href="#__codelineno-30-15"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">nums</span><span class="p">[:</span><span class="mi">3</span><span class="p">],</span><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="mi">4</span><span class="p">:]</span><span class="o">...</span><span class="p">)</span><span class="w"> </span><span class="c1">// インデックス 3 の要素を削除</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-31-1" name="__codelineno-31-1" href="#__codelineno-31-1"></a><span class="cm">/* リストをクリア */</span>
|
||
<a id="__codelineno-31-2" name="__codelineno-31-2" href="#__codelineno-31-2"></a><span class="n">nums</span><span class="p">.</span><span class="bp">removeAll</span><span class="p">()</span>
|
||
<a id="__codelineno-31-3" name="__codelineno-31-3" href="#__codelineno-31-3"></a>
|
||
<a id="__codelineno-31-4" name="__codelineno-31-4" href="#__codelineno-31-4"></a><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-31-5" name="__codelineno-31-5" href="#__codelineno-31-5"></a><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||
<a id="__codelineno-31-6" name="__codelineno-31-6" href="#__codelineno-31-6"></a><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span>
|
||
<a id="__codelineno-31-7" name="__codelineno-31-7" href="#__codelineno-31-7"></a><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span>
|
||
<a id="__codelineno-31-8" name="__codelineno-31-8" href="#__codelineno-31-8"></a><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">5</span><span class="p">)</span>
|
||
<a id="__codelineno-31-9" name="__codelineno-31-9" href="#__codelineno-31-9"></a><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">4</span><span class="p">)</span>
|
||
<a id="__codelineno-31-10" name="__codelineno-31-10" href="#__codelineno-31-10"></a>
|
||
<a id="__codelineno-31-11" name="__codelineno-31-11" href="#__codelineno-31-11"></a><span class="cm">/* 途中に要素を挿入 */</span>
|
||
<a id="__codelineno-31-12" name="__codelineno-31-12" href="#__codelineno-31-12"></a><span class="n">nums</span><span class="p">.</span><span class="bp">insert</span><span class="p">(</span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="n">at</span><span class="p">:</span><span class="w"> </span><span class="mi">3</span><span class="p">)</span><span class="w"> </span><span class="c1">// インデックス 3 に数値 6 を挿入</span>
|
||
<a id="__codelineno-31-13" name="__codelineno-31-13" href="#__codelineno-31-13"></a>
|
||
<a id="__codelineno-31-14" name="__codelineno-31-14" href="#__codelineno-31-14"></a><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-31-15" name="__codelineno-31-15" href="#__codelineno-31-15"></a><span class="n">nums</span><span class="p">.</span><span class="n">remove</span><span class="p">(</span><span class="n">at</span><span class="p">:</span><span class="w"> </span><span class="mi">3</span><span class="p">)</span><span class="w"> </span><span class="c1">// インデックス 3 の要素を削除</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-32-1" name="__codelineno-32-1" href="#__codelineno-32-1"></a><span class="cm">/* リストをクリア */</span>
|
||
<a id="__codelineno-32-2" name="__codelineno-32-2" href="#__codelineno-32-2"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">length</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
|
||
<a id="__codelineno-32-3" name="__codelineno-32-3" href="#__codelineno-32-3"></a>
|
||
<a id="__codelineno-32-4" name="__codelineno-32-4" href="#__codelineno-32-4"></a><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-32-5" name="__codelineno-32-5" href="#__codelineno-32-5"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">1</span><span class="p">);</span>
|
||
<a id="__codelineno-32-6" name="__codelineno-32-6" href="#__codelineno-32-6"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">3</span><span class="p">);</span>
|
||
<a id="__codelineno-32-7" name="__codelineno-32-7" href="#__codelineno-32-7"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">2</span><span class="p">);</span>
|
||
<a id="__codelineno-32-8" name="__codelineno-32-8" href="#__codelineno-32-8"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">5</span><span class="p">);</span>
|
||
<a id="__codelineno-32-9" name="__codelineno-32-9" href="#__codelineno-32-9"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">4</span><span class="p">);</span>
|
||
<a id="__codelineno-32-10" name="__codelineno-32-10" href="#__codelineno-32-10"></a>
|
||
<a id="__codelineno-32-11" name="__codelineno-32-11" href="#__codelineno-32-11"></a><span class="cm">/* 途中に要素を挿入 */</span>
|
||
<a id="__codelineno-32-12" name="__codelineno-32-12" href="#__codelineno-32-12"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">0</span><span class="p">,</span><span class="w"> </span><span class="mf">6</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 3 に数値 6 を挿入</span>
|
||
<a id="__codelineno-32-13" name="__codelineno-32-13" href="#__codelineno-32-13"></a>
|
||
<a id="__codelineno-32-14" name="__codelineno-32-14" href="#__codelineno-32-14"></a><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-32-15" name="__codelineno-32-15" href="#__codelineno-32-15"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">1</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 3 の要素を削除</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-33-1" name="__codelineno-33-1" href="#__codelineno-33-1"></a><span class="cm">/* リストをクリア */</span>
|
||
<a id="__codelineno-33-2" name="__codelineno-33-2" href="#__codelineno-33-2"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">length</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
|
||
<a id="__codelineno-33-3" name="__codelineno-33-3" href="#__codelineno-33-3"></a>
|
||
<a id="__codelineno-33-4" name="__codelineno-33-4" href="#__codelineno-33-4"></a><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-33-5" name="__codelineno-33-5" href="#__codelineno-33-5"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">1</span><span class="p">);</span>
|
||
<a id="__codelineno-33-6" name="__codelineno-33-6" href="#__codelineno-33-6"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">3</span><span class="p">);</span>
|
||
<a id="__codelineno-33-7" name="__codelineno-33-7" href="#__codelineno-33-7"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">2</span><span class="p">);</span>
|
||
<a id="__codelineno-33-8" name="__codelineno-33-8" href="#__codelineno-33-8"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">5</span><span class="p">);</span>
|
||
<a id="__codelineno-33-9" name="__codelineno-33-9" href="#__codelineno-33-9"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">4</span><span class="p">);</span>
|
||
<a id="__codelineno-33-10" name="__codelineno-33-10" href="#__codelineno-33-10"></a>
|
||
<a id="__codelineno-33-11" name="__codelineno-33-11" href="#__codelineno-33-11"></a><span class="cm">/* 途中に要素を挿入 */</span>
|
||
<a id="__codelineno-33-12" name="__codelineno-33-12" href="#__codelineno-33-12"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">0</span><span class="p">,</span><span class="w"> </span><span class="mf">6</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 3 に数値 6 を挿入</span>
|
||
<a id="__codelineno-33-13" name="__codelineno-33-13" href="#__codelineno-33-13"></a>
|
||
<a id="__codelineno-33-14" name="__codelineno-33-14" href="#__codelineno-33-14"></a><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-33-15" name="__codelineno-33-15" href="#__codelineno-33-15"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">1</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 3 の要素を削除</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.dart</span><pre><span></span><code><a id="__codelineno-34-1" name="__codelineno-34-1" href="#__codelineno-34-1"></a><span class="cm">/* リストをクリア */</span>
|
||
<a id="__codelineno-34-2" name="__codelineno-34-2" href="#__codelineno-34-2"></a><span class="n">nums</span><span class="p">.</span><span class="n">clear</span><span class="p">();</span>
|
||
<a id="__codelineno-34-3" name="__codelineno-34-3" href="#__codelineno-34-3"></a>
|
||
<a id="__codelineno-34-4" name="__codelineno-34-4" href="#__codelineno-34-4"></a><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-34-5" name="__codelineno-34-5" href="#__codelineno-34-5"></a><span class="n">nums</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="m">1</span><span class="p">);</span>
|
||
<a id="__codelineno-34-6" name="__codelineno-34-6" href="#__codelineno-34-6"></a><span class="n">nums</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="m">3</span><span class="p">);</span>
|
||
<a id="__codelineno-34-7" name="__codelineno-34-7" href="#__codelineno-34-7"></a><span class="n">nums</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="m">2</span><span class="p">);</span>
|
||
<a id="__codelineno-34-8" name="__codelineno-34-8" href="#__codelineno-34-8"></a><span class="n">nums</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="m">5</span><span class="p">);</span>
|
||
<a id="__codelineno-34-9" name="__codelineno-34-9" href="#__codelineno-34-9"></a><span class="n">nums</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="m">4</span><span class="p">);</span>
|
||
<a id="__codelineno-34-10" name="__codelineno-34-10" href="#__codelineno-34-10"></a>
|
||
<a id="__codelineno-34-11" name="__codelineno-34-11" href="#__codelineno-34-11"></a><span class="cm">/* 途中に要素を挿入 */</span>
|
||
<a id="__codelineno-34-12" name="__codelineno-34-12" href="#__codelineno-34-12"></a><span class="n">nums</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="m">3</span><span class="p">,</span><span class="w"> </span><span class="m">6</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 3 に数値 6 を挿入</span>
|
||
<a id="__codelineno-34-13" name="__codelineno-34-13" href="#__codelineno-34-13"></a>
|
||
<a id="__codelineno-34-14" name="__codelineno-34-14" href="#__codelineno-34-14"></a><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-34-15" name="__codelineno-34-15" href="#__codelineno-34-15"></a><span class="n">nums</span><span class="p">.</span><span class="n">removeAt</span><span class="p">(</span><span class="m">3</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 3 の要素を削除</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rs</span><pre><span></span><code><a id="__codelineno-35-1" name="__codelineno-35-1" href="#__codelineno-35-1"></a><span class="cm">/* リストをクリア */</span>
|
||
<a id="__codelineno-35-2" name="__codelineno-35-2" href="#__codelineno-35-2"></a><span class="n">nums</span><span class="p">.</span><span class="n">clear</span><span class="p">();</span>
|
||
<a id="__codelineno-35-3" name="__codelineno-35-3" href="#__codelineno-35-3"></a>
|
||
<a id="__codelineno-35-4" name="__codelineno-35-4" href="#__codelineno-35-4"></a><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-35-5" name="__codelineno-35-5" href="#__codelineno-35-5"></a><span class="n">nums</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
|
||
<a id="__codelineno-35-6" name="__codelineno-35-6" href="#__codelineno-35-6"></a><span class="n">nums</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span>
|
||
<a id="__codelineno-35-7" name="__codelineno-35-7" href="#__codelineno-35-7"></a><span class="n">nums</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="mi">2</span><span class="p">);</span>
|
||
<a id="__codelineno-35-8" name="__codelineno-35-8" href="#__codelineno-35-8"></a><span class="n">nums</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="mi">5</span><span class="p">);</span>
|
||
<a id="__codelineno-35-9" name="__codelineno-35-9" href="#__codelineno-35-9"></a><span class="n">nums</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="mi">4</span><span class="p">);</span>
|
||
<a id="__codelineno-35-10" name="__codelineno-35-10" href="#__codelineno-35-10"></a>
|
||
<a id="__codelineno-35-11" name="__codelineno-35-11" href="#__codelineno-35-11"></a><span class="cm">/* 途中に要素を挿入 */</span>
|
||
<a id="__codelineno-35-12" name="__codelineno-35-12" href="#__codelineno-35-12"></a><span class="n">nums</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">6</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 3 に数値 6 を挿入</span>
|
||
<a id="__codelineno-35-13" name="__codelineno-35-13" href="#__codelineno-35-13"></a>
|
||
<a id="__codelineno-35-14" name="__codelineno-35-14" href="#__codelineno-35-14"></a><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-35-15" name="__codelineno-35-15" href="#__codelineno-35-15"></a><span class="n">nums</span><span class="p">.</span><span class="n">remove</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 3 の要素を削除</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-36-1" name="__codelineno-36-1" href="#__codelineno-36-1"></a><span class="c1">// C には組み込みの動的配列がない</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.kt</span><pre><span></span><code><a id="__codelineno-37-1" name="__codelineno-37-1" href="#__codelineno-37-1"></a><span class="cm">/* リストをクリア */</span>
|
||
<a id="__codelineno-37-2" name="__codelineno-37-2" href="#__codelineno-37-2"></a><span class="n">nums</span><span class="p">.</span><span class="na">clear</span><span class="p">();</span>
|
||
<a id="__codelineno-37-3" name="__codelineno-37-3" href="#__codelineno-37-3"></a>
|
||
<a id="__codelineno-37-4" name="__codelineno-37-4" href="#__codelineno-37-4"></a><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-37-5" name="__codelineno-37-5" href="#__codelineno-37-5"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="m">1</span><span class="p">);</span>
|
||
<a id="__codelineno-37-6" name="__codelineno-37-6" href="#__codelineno-37-6"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="m">3</span><span class="p">);</span>
|
||
<a id="__codelineno-37-7" name="__codelineno-37-7" href="#__codelineno-37-7"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="m">2</span><span class="p">);</span>
|
||
<a id="__codelineno-37-8" name="__codelineno-37-8" href="#__codelineno-37-8"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="m">5</span><span class="p">);</span>
|
||
<a id="__codelineno-37-9" name="__codelineno-37-9" href="#__codelineno-37-9"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="m">4</span><span class="p">);</span>
|
||
<a id="__codelineno-37-10" name="__codelineno-37-10" href="#__codelineno-37-10"></a>
|
||
<a id="__codelineno-37-11" name="__codelineno-37-11" href="#__codelineno-37-11"></a><span class="cm">/* 途中に要素を挿入 */</span>
|
||
<a id="__codelineno-37-12" name="__codelineno-37-12" href="#__codelineno-37-12"></a><span class="n">nums</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="m">3</span><span class="p">,</span><span class="w"> </span><span class="m">6</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 3 に数値 6 を挿入</span>
|
||
<a id="__codelineno-37-13" name="__codelineno-37-13" href="#__codelineno-37-13"></a>
|
||
<a id="__codelineno-37-14" name="__codelineno-37-14" href="#__codelineno-37-14"></a><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-37-15" name="__codelineno-37-15" href="#__codelineno-37-15"></a><span class="n">nums</span><span class="p">.</span><span class="na">remove</span><span class="p">(</span><span class="m">3</span><span class="p">);</span><span class="w"> </span><span class="c1">// インデックス 3 の要素を削除</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rb</span><pre><span></span><code><a id="__codelineno-38-1" name="__codelineno-38-1" href="#__codelineno-38-1"></a><span class="c1"># リストをクリア</span>
|
||
<a id="__codelineno-38-2" name="__codelineno-38-2" href="#__codelineno-38-2"></a><span class="n">nums</span><span class="o">.</span><span class="n">clear</span>
|
||
<a id="__codelineno-38-3" name="__codelineno-38-3" href="#__codelineno-38-3"></a>
|
||
<a id="__codelineno-38-4" name="__codelineno-38-4" href="#__codelineno-38-4"></a><span class="c1"># 末尾に要素を追加</span>
|
||
<a id="__codelineno-38-5" name="__codelineno-38-5" href="#__codelineno-38-5"></a><span class="n">nums</span><span class="w"> </span><span class="o"><<</span><span class="w"> </span><span class="mi">1</span>
|
||
<a id="__codelineno-38-6" name="__codelineno-38-6" href="#__codelineno-38-6"></a><span class="n">nums</span><span class="w"> </span><span class="o"><<</span><span class="w"> </span><span class="mi">3</span>
|
||
<a id="__codelineno-38-7" name="__codelineno-38-7" href="#__codelineno-38-7"></a><span class="n">nums</span><span class="w"> </span><span class="o"><<</span><span class="w"> </span><span class="mi">2</span>
|
||
<a id="__codelineno-38-8" name="__codelineno-38-8" href="#__codelineno-38-8"></a><span class="n">nums</span><span class="w"> </span><span class="o"><<</span><span class="w"> </span><span class="mi">5</span>
|
||
<a id="__codelineno-38-9" name="__codelineno-38-9" href="#__codelineno-38-9"></a><span class="n">nums</span><span class="w"> </span><span class="o"><<</span><span class="w"> </span><span class="mi">4</span>
|
||
<a id="__codelineno-38-10" name="__codelineno-38-10" href="#__codelineno-38-10"></a>
|
||
<a id="__codelineno-38-11" name="__codelineno-38-11" href="#__codelineno-38-11"></a><span class="c1"># 途中に要素を挿入</span>
|
||
<a id="__codelineno-38-12" name="__codelineno-38-12" href="#__codelineno-38-12"></a><span class="n">nums</span><span class="o">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">6</span><span class="p">)</span><span class="w"> </span><span class="c1"># インデックス 3 に数値 6 を挿入</span>
|
||
<a id="__codelineno-38-13" name="__codelineno-38-13" href="#__codelineno-38-13"></a>
|
||
<a id="__codelineno-38-14" name="__codelineno-38-14" href="#__codelineno-38-14"></a><span class="c1"># 要素を削除</span>
|
||
<a id="__codelineno-38-15" name="__codelineno-38-15" href="#__codelineno-38-15"></a><span class="n">nums</span><span class="o">.</span><span class="n">delete_at</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span><span class="w"> </span><span class="c1"># インデックス 3 の要素を削除</span>
|
||
</code></pre></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<details class="pythontutor">
|
||
<summary>可視化実行</summary>
|
||
<p>https://pythontutor.com/render.html#code=%22%22%22Driver%20Code%22%22%22%0Aif%20__name__%20%3D%3D%20%22__main__%22%3A%0A%20%20%20%20%23%20%E6%9C%89%E5%88%9D%E5%A7%8B%E5%80%BC%0A%20%20%20%20nums%20%3D%20%5B1,%203,%202,%205,%204%5D%0A%20%20%20%20%0A%20%20%20%20%23%20%E6%B8%85%E7%A9%BA%E5%88%97%E8%A1%A8%0A%20%20%20%20nums.clear%28%29%0A%20%20%20%20%0A%20%20%20%20%23%20%E5%9C%A8%E5%B0%BE%E9%83%A8%E6%B7%BB%E5%8A%A0%E5%85%83%E7%B4%A0%0A%20%20%20%20nums.append%281%29%0A%20%20%20%20nums.append%283%29%0A%20%20%20%20nums.append%282%29%0A%20%20%20%20nums.append%285%29%0A%20%20%20%20nums.append%284%29%0A%20%20%20%20%0A%20%20%20%20%23%20%E5%9C%A8%E4%B8%AD%E9%97%B4%E6%8F%92%E5%85%A5%E5%85%83%E7%B4%A0%0A%20%20%20%20nums.insert%283,%206%29%20%20%23%20%E5%9C%A8%E7%B4%A2%E5%BC%95%203%20%E5%A4%84%E6%8F%92%E5%85%A5%E6%95%B0%E5%AD%97%206%0A%20%20%20%20%0A%20%20%20%20%23%20%E5%88%A0%E9%99%A4%E5%85%83%E7%B4%A0%0A%20%20%20%20nums.pop%283%29%20%20%20%20%20%20%20%20%23%20%E5%88%A0%E9%99%A4%E7%B4%A2%E5%BC%95%203%20%E5%A4%84%E7%9A%84%E5%85%83%E7%B4%A0&cumulative=false&curInstr=3&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=311&rawInputLstJSON=%5B%5D&textReferences=false</p>
|
||
</details>
|
||
<h3 id="4">4. リストの走査<a class="headerlink" href="#4" title="Permanent link">¶</a></h3>
|
||
<p>配列と同様に、リストもインデックスに基づいて走査することも、各要素を直接走査することもできる。</p>
|
||
<div class="tabbed-set tabbed-alternate" data-tabs="4:13"><input checked="checked" id="__tabbed_4_1" name="__tabbed_4" type="radio" /><input id="__tabbed_4_2" name="__tabbed_4" type="radio" /><input id="__tabbed_4_3" name="__tabbed_4" type="radio" /><input id="__tabbed_4_4" name="__tabbed_4" type="radio" /><input id="__tabbed_4_5" name="__tabbed_4" type="radio" /><input id="__tabbed_4_6" name="__tabbed_4" type="radio" /><input id="__tabbed_4_7" name="__tabbed_4" type="radio" /><input id="__tabbed_4_8" name="__tabbed_4" type="radio" /><input id="__tabbed_4_9" name="__tabbed_4" type="radio" /><input id="__tabbed_4_10" name="__tabbed_4" type="radio" /><input id="__tabbed_4_11" name="__tabbed_4" type="radio" /><input id="__tabbed_4_12" name="__tabbed_4" type="radio" /><input id="__tabbed_4_13" name="__tabbed_4" type="radio" /><div class="tabbed-labels"><label for="__tabbed_4_1">Python</label><label for="__tabbed_4_2">C++</label><label for="__tabbed_4_3">Java</label><label for="__tabbed_4_4">C#</label><label for="__tabbed_4_5">Go</label><label for="__tabbed_4_6">Swift</label><label for="__tabbed_4_7">JS</label><label for="__tabbed_4_8">TS</label><label for="__tabbed_4_9">Dart</label><label for="__tabbed_4_10">Rust</label><label for="__tabbed_4_11">C</label><label for="__tabbed_4_12">Kotlin</label><label for="__tabbed_4_13">Ruby</label></div>
|
||
<div class="tabbed-content">
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-39-1" name="__codelineno-39-1" href="#__codelineno-39-1"></a><span class="c1"># インデックスでリストを走査</span>
|
||
<a id="__codelineno-39-2" name="__codelineno-39-2" href="#__codelineno-39-2"></a><span class="n">count</span> <span class="o">=</span> <span class="mi">0</span>
|
||
<a id="__codelineno-39-3" name="__codelineno-39-3" href="#__codelineno-39-3"></a><span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">nums</span><span class="p">)):</span>
|
||
<a id="__codelineno-39-4" name="__codelineno-39-4" href="#__codelineno-39-4"></a> <span class="n">count</span> <span class="o">+=</span> <span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
|
||
<a id="__codelineno-39-5" name="__codelineno-39-5" href="#__codelineno-39-5"></a>
|
||
<a id="__codelineno-39-6" name="__codelineno-39-6" href="#__codelineno-39-6"></a><span class="c1"># リストの要素を直接走査</span>
|
||
<a id="__codelineno-39-7" name="__codelineno-39-7" href="#__codelineno-39-7"></a><span class="k">for</span> <span class="n">num</span> <span class="ow">in</span> <span class="n">nums</span><span class="p">:</span>
|
||
<a id="__codelineno-39-8" name="__codelineno-39-8" href="#__codelineno-39-8"></a> <span class="n">count</span> <span class="o">+=</span> <span class="n">num</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-40-1" name="__codelineno-40-1" href="#__codelineno-40-1"></a><span class="cm">/* インデックスでリストを走査 */</span>
|
||
<a id="__codelineno-40-2" name="__codelineno-40-2" href="#__codelineno-40-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-40-3" name="__codelineno-40-3" href="#__codelineno-40-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">size</span><span class="p">();</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-40-4" name="__codelineno-40-4" href="#__codelineno-40-4"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
|
||
<a id="__codelineno-40-5" name="__codelineno-40-5" href="#__codelineno-40-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-40-6" name="__codelineno-40-6" href="#__codelineno-40-6"></a>
|
||
<a id="__codelineno-40-7" name="__codelineno-40-7" href="#__codelineno-40-7"></a><span class="cm">/* リストの要素を直接走査 */</span>
|
||
<a id="__codelineno-40-8" name="__codelineno-40-8" href="#__codelineno-40-8"></a><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-40-9" name="__codelineno-40-9" href="#__codelineno-40-9"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-40-10" name="__codelineno-40-10" href="#__codelineno-40-10"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-40-11" name="__codelineno-40-11" href="#__codelineno-40-11"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-41-1" name="__codelineno-41-1" href="#__codelineno-41-1"></a><span class="cm">/* インデックスでリストを走査 */</span>
|
||
<a id="__codelineno-41-2" name="__codelineno-41-2" href="#__codelineno-41-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-41-3" name="__codelineno-41-3" href="#__codelineno-41-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="na">size</span><span class="p">();</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-41-4" name="__codelineno-41-4" href="#__codelineno-41-4"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="na">get</span><span class="p">(</span><span class="n">i</span><span class="p">);</span>
|
||
<a id="__codelineno-41-5" name="__codelineno-41-5" href="#__codelineno-41-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-41-6" name="__codelineno-41-6" href="#__codelineno-41-6"></a>
|
||
<a id="__codelineno-41-7" name="__codelineno-41-7" href="#__codelineno-41-7"></a><span class="cm">/* リストの要素を直接走査 */</span>
|
||
<a id="__codelineno-41-8" name="__codelineno-41-8" href="#__codelineno-41-8"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="p">:</span><span class="w"> </span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-41-9" name="__codelineno-41-9" href="#__codelineno-41-9"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-41-10" name="__codelineno-41-10" href="#__codelineno-41-10"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-42-1" name="__codelineno-42-1" href="#__codelineno-42-1"></a><span class="cm">/* インデックスでリストを走査 */</span>
|
||
<a id="__codelineno-42-2" name="__codelineno-42-2" href="#__codelineno-42-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-42-3" name="__codelineno-42-3" href="#__codelineno-42-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">Count</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-42-4" name="__codelineno-42-4" href="#__codelineno-42-4"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
|
||
<a id="__codelineno-42-5" name="__codelineno-42-5" href="#__codelineno-42-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-42-6" name="__codelineno-42-6" href="#__codelineno-42-6"></a>
|
||
<a id="__codelineno-42-7" name="__codelineno-42-7" href="#__codelineno-42-7"></a><span class="cm">/* リストの要素を直接走査 */</span>
|
||
<a id="__codelineno-42-8" name="__codelineno-42-8" href="#__codelineno-42-8"></a><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-42-9" name="__codelineno-42-9" href="#__codelineno-42-9"></a><span class="k">foreach</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-42-10" name="__codelineno-42-10" href="#__codelineno-42-10"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-42-11" name="__codelineno-42-11" href="#__codelineno-42-11"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-43-1" name="__codelineno-43-1" href="#__codelineno-43-1"></a><span class="cm">/* インデックスでリストを走査 */</span>
|
||
<a id="__codelineno-43-2" name="__codelineno-43-2" href="#__codelineno-43-2"></a><span class="nx">count</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="mi">0</span>
|
||
<a id="__codelineno-43-3" name="__codelineno-43-3" href="#__codelineno-43-3"></a><span class="k">for</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="nb">len</span><span class="p">(</span><span class="nx">nums</span><span class="p">);</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-43-4" name="__codelineno-43-4" href="#__codelineno-43-4"></a><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span>
|
||
<a id="__codelineno-43-5" name="__codelineno-43-5" href="#__codelineno-43-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-43-6" name="__codelineno-43-6" href="#__codelineno-43-6"></a>
|
||
<a id="__codelineno-43-7" name="__codelineno-43-7" href="#__codelineno-43-7"></a><span class="cm">/* リストの要素を直接走査 */</span>
|
||
<a id="__codelineno-43-8" name="__codelineno-43-8" href="#__codelineno-43-8"></a><span class="nx">count</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="mi">0</span>
|
||
<a id="__codelineno-43-9" name="__codelineno-43-9" href="#__codelineno-43-9"></a><span class="k">for</span><span class="w"> </span><span class="nx">_</span><span class="p">,</span><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="k">range</span><span class="w"> </span><span class="nx">nums</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-43-10" name="__codelineno-43-10" href="#__codelineno-43-10"></a><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">num</span>
|
||
<a id="__codelineno-43-11" name="__codelineno-43-11" href="#__codelineno-43-11"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-44-1" name="__codelineno-44-1" href="#__codelineno-44-1"></a><span class="cm">/* インデックスでリストを走査 */</span>
|
||
<a id="__codelineno-44-2" name="__codelineno-44-2" href="#__codelineno-44-2"></a><span class="kd">var</span><span class="w"> </span><span class="nv">count</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="mi">0</span>
|
||
<a id="__codelineno-44-3" name="__codelineno-44-3" href="#__codelineno-44-3"></a><span class="k">for</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="bp">indices</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-44-4" name="__codelineno-44-4" href="#__codelineno-44-4"></a><span class="w"> </span><span class="bp">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
|
||
<a id="__codelineno-44-5" name="__codelineno-44-5" href="#__codelineno-44-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-44-6" name="__codelineno-44-6" href="#__codelineno-44-6"></a>
|
||
<a id="__codelineno-44-7" name="__codelineno-44-7" href="#__codelineno-44-7"></a><span class="cm">/* リストの要素を直接走査 */</span>
|
||
<a id="__codelineno-44-8" name="__codelineno-44-8" href="#__codelineno-44-8"></a><span class="bp">count</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="mi">0</span>
|
||
<a id="__codelineno-44-9" name="__codelineno-44-9" href="#__codelineno-44-9"></a><span class="k">for</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-44-10" name="__codelineno-44-10" href="#__codelineno-44-10"></a><span class="w"> </span><span class="bp">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">num</span>
|
||
<a id="__codelineno-44-11" name="__codelineno-44-11" href="#__codelineno-44-11"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-45-1" name="__codelineno-45-1" href="#__codelineno-45-1"></a><span class="cm">/* インデックスでリストを走査 */</span>
|
||
<a id="__codelineno-45-2" name="__codelineno-45-2" href="#__codelineno-45-2"></a><span class="kd">let</span><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
|
||
<a id="__codelineno-45-3" name="__codelineno-45-3" href="#__codelineno-45-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="nx">nums</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-45-4" name="__codelineno-45-4" href="#__codelineno-45-4"></a><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="nx">i</span><span class="p">];</span>
|
||
<a id="__codelineno-45-5" name="__codelineno-45-5" href="#__codelineno-45-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-45-6" name="__codelineno-45-6" href="#__codelineno-45-6"></a>
|
||
<a id="__codelineno-45-7" name="__codelineno-45-7" href="#__codelineno-45-7"></a><span class="cm">/* リストの要素を直接走査 */</span>
|
||
<a id="__codelineno-45-8" name="__codelineno-45-8" href="#__codelineno-45-8"></a><span class="nx">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
|
||
<a id="__codelineno-45-9" name="__codelineno-45-9" href="#__codelineno-45-9"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">const</span><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="k">of</span><span class="w"> </span><span class="nx">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-45-10" name="__codelineno-45-10" href="#__codelineno-45-10"></a><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-45-11" name="__codelineno-45-11" href="#__codelineno-45-11"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-46-1" name="__codelineno-46-1" href="#__codelineno-46-1"></a><span class="cm">/* インデックスでリストを走査 */</span>
|
||
<a id="__codelineno-46-2" name="__codelineno-46-2" href="#__codelineno-46-2"></a><span class="kd">let</span><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
|
||
<a id="__codelineno-46-3" name="__codelineno-46-3" href="#__codelineno-46-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="nx">nums</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-46-4" name="__codelineno-46-4" href="#__codelineno-46-4"></a><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="nx">i</span><span class="p">];</span>
|
||
<a id="__codelineno-46-5" name="__codelineno-46-5" href="#__codelineno-46-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-46-6" name="__codelineno-46-6" href="#__codelineno-46-6"></a>
|
||
<a id="__codelineno-46-7" name="__codelineno-46-7" href="#__codelineno-46-7"></a><span class="cm">/* リストの要素を直接走査 */</span>
|
||
<a id="__codelineno-46-8" name="__codelineno-46-8" href="#__codelineno-46-8"></a><span class="nx">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
|
||
<a id="__codelineno-46-9" name="__codelineno-46-9" href="#__codelineno-46-9"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">const</span><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="k">of</span><span class="w"> </span><span class="nx">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-46-10" name="__codelineno-46-10" href="#__codelineno-46-10"></a><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-46-11" name="__codelineno-46-11" href="#__codelineno-46-11"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.dart</span><pre><span></span><code><a id="__codelineno-47-1" name="__codelineno-47-1" href="#__codelineno-47-1"></a><span class="cm">/* インデックスでリストを走査 */</span>
|
||
<a id="__codelineno-47-2" name="__codelineno-47-2" href="#__codelineno-47-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span>
|
||
<a id="__codelineno-47-3" name="__codelineno-47-3" href="#__codelineno-47-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">var</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">length</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-47-4" name="__codelineno-47-4" href="#__codelineno-47-4"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
|
||
<a id="__codelineno-47-5" name="__codelineno-47-5" href="#__codelineno-47-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-47-6" name="__codelineno-47-6" href="#__codelineno-47-6"></a>
|
||
<a id="__codelineno-47-7" name="__codelineno-47-7" href="#__codelineno-47-7"></a><span class="cm">/* リストの要素を直接走査 */</span>
|
||
<a id="__codelineno-47-8" name="__codelineno-47-8" href="#__codelineno-47-8"></a><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span>
|
||
<a id="__codelineno-47-9" name="__codelineno-47-9" href="#__codelineno-47-9"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">var</span><span class="w"> </span><span class="kt">num</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-47-10" name="__codelineno-47-10" href="#__codelineno-47-10"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="kt">num</span><span class="p">;</span>
|
||
<a id="__codelineno-47-11" name="__codelineno-47-11" href="#__codelineno-47-11"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rs</span><pre><span></span><code><a id="__codelineno-48-1" name="__codelineno-48-1" href="#__codelineno-48-1"></a><span class="c1">// インデックスでリストを走査</span>
|
||
<a id="__codelineno-48-2" name="__codelineno-48-2" href="#__codelineno-48-2"></a><span class="kd">let</span><span class="w"> </span><span class="k">mut</span><span class="w"> </span><span class="n">_count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-48-3" name="__codelineno-48-3" href="#__codelineno-48-3"></a><span class="k">for</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="mi">0</span><span class="o">..</span><span class="n">nums</span><span class="p">.</span><span class="n">len</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-48-4" name="__codelineno-48-4" href="#__codelineno-48-4"></a><span class="w"> </span><span class="n">_count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
|
||
<a id="__codelineno-48-5" name="__codelineno-48-5" href="#__codelineno-48-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-48-6" name="__codelineno-48-6" href="#__codelineno-48-6"></a>
|
||
<a id="__codelineno-48-7" name="__codelineno-48-7" href="#__codelineno-48-7"></a><span class="c1">// リストの要素を直接走査</span>
|
||
<a id="__codelineno-48-8" name="__codelineno-48-8" href="#__codelineno-48-8"></a><span class="n">_count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-48-9" name="__codelineno-48-9" href="#__codelineno-48-9"></a><span class="k">for</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="o">&</span><span class="n">nums</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-48-10" name="__codelineno-48-10" href="#__codelineno-48-10"></a><span class="w"> </span><span class="n">_count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-48-11" name="__codelineno-48-11" href="#__codelineno-48-11"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-49-1" name="__codelineno-49-1" href="#__codelineno-49-1"></a><span class="c1">// C には組み込みの動的配列がない</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.kt</span><pre><span></span><code><a id="__codelineno-50-1" name="__codelineno-50-1" href="#__codelineno-50-1"></a><span class="cm">/* インデックスでリストを走査 */</span>
|
||
<a id="__codelineno-50-2" name="__codelineno-50-2" href="#__codelineno-50-2"></a><span class="kd">var</span><span class="w"> </span><span class="nv">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span>
|
||
<a id="__codelineno-50-3" name="__codelineno-50-3" href="#__codelineno-50-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">i</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="na">indices</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-50-4" name="__codelineno-50-4" href="#__codelineno-50-4"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">nums</span><span class="o">[</span><span class="n">i</span><span class="o">]</span>
|
||
<a id="__codelineno-50-5" name="__codelineno-50-5" href="#__codelineno-50-5"></a><span class="p">}</span>
|
||
<a id="__codelineno-50-6" name="__codelineno-50-6" href="#__codelineno-50-6"></a>
|
||
<a id="__codelineno-50-7" name="__codelineno-50-7" href="#__codelineno-50-7"></a><span class="cm">/* リストの要素を直接走査 */</span>
|
||
<a id="__codelineno-50-8" name="__codelineno-50-8" href="#__codelineno-50-8"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">num</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-50-9" name="__codelineno-50-9" href="#__codelineno-50-9"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">num</span>
|
||
<a id="__codelineno-50-10" name="__codelineno-50-10" href="#__codelineno-50-10"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rb</span><pre><span></span><code><a id="__codelineno-51-1" name="__codelineno-51-1" href="#__codelineno-51-1"></a><span class="c1"># インデックスでリストを走査</span>
|
||
<a id="__codelineno-51-2" name="__codelineno-51-2" href="#__codelineno-51-2"></a><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span>
|
||
<a id="__codelineno-51-3" name="__codelineno-51-3" href="#__codelineno-51-3"></a><span class="k">for</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="mi">0</span><span class="o">...</span><span class="n">nums</span><span class="o">.</span><span class="n">length</span>
|
||
<a id="__codelineno-51-4" name="__codelineno-51-4" href="#__codelineno-51-4"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">nums</span><span class="o">[</span><span class="n">i</span><span class="o">]</span>
|
||
<a id="__codelineno-51-5" name="__codelineno-51-5" href="#__codelineno-51-5"></a><span class="k">end</span>
|
||
<a id="__codelineno-51-6" name="__codelineno-51-6" href="#__codelineno-51-6"></a>
|
||
<a id="__codelineno-51-7" name="__codelineno-51-7" href="#__codelineno-51-7"></a><span class="c1"># リストの要素を直接走査</span>
|
||
<a id="__codelineno-51-8" name="__codelineno-51-8" href="#__codelineno-51-8"></a><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span>
|
||
<a id="__codelineno-51-9" name="__codelineno-51-9" href="#__codelineno-51-9"></a><span class="k">for</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">nums</span>
|
||
<a id="__codelineno-51-10" name="__codelineno-51-10" href="#__codelineno-51-10"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">num</span>
|
||
<a id="__codelineno-51-11" name="__codelineno-51-11" href="#__codelineno-51-11"></a><span class="k">end</span>
|
||
</code></pre></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<details class="pythontutor">
|
||
<summary>可視化実行</summary>
|
||
<p>https://pythontutor.com/render.html#code=%22%22%22Driver%20Code%22%22%22%0Aif%20__name__%20%3D%3D%20%22__main__%22%3A%0A%20%20%20%20%23%20%E5%88%9D%E5%A7%8B%E5%8C%96%E5%88%97%E8%A1%A8%0A%20%20%20%20nums%20%3D%20%5B1,%203,%202,%205,%204%5D%0A%20%20%20%20%0A%20%20%20%20%23%20%E9%80%9A%E8%BF%87%E7%B4%A2%E5%BC%95%E9%81%8D%E5%8E%86%E5%88%97%E8%A1%A8%0A%20%20%20%20count%20%3D%200%0A%20%20%20%20for%20i%20in%20range%28len%28nums%29%29%3A%0A%20%20%20%20%20%20%20%20count%20%2B%3D%20nums%5Bi%5D%0A%0A%20%20%20%20%23%20%E7%9B%B4%E6%8E%A5%E9%81%8D%E5%8E%86%E5%88%97%E8%A1%A8%E5%85%83%E7%B4%A0%0A%20%20%20%20for%20num%20in%20nums%3A%0A%20%20%20%20%20%20%20%20count%20%2B%3D%20num&cumulative=false&curInstr=3&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=311&rawInputLstJSON=%5B%5D&textReferences=false</p>
|
||
</details>
|
||
<h3 id="5">5. リストの連結<a class="headerlink" href="#5" title="Permanent link">¶</a></h3>
|
||
<p>新しいリスト <code>nums1</code> が与えられたとき、それを元のリストの末尾に連結できる。</p>
|
||
<div class="tabbed-set tabbed-alternate" data-tabs="5:13"><input checked="checked" id="__tabbed_5_1" name="__tabbed_5" type="radio" /><input id="__tabbed_5_2" name="__tabbed_5" type="radio" /><input id="__tabbed_5_3" name="__tabbed_5" type="radio" /><input id="__tabbed_5_4" name="__tabbed_5" type="radio" /><input id="__tabbed_5_5" name="__tabbed_5" type="radio" /><input id="__tabbed_5_6" name="__tabbed_5" type="radio" /><input id="__tabbed_5_7" name="__tabbed_5" type="radio" /><input id="__tabbed_5_8" name="__tabbed_5" type="radio" /><input id="__tabbed_5_9" name="__tabbed_5" type="radio" /><input id="__tabbed_5_10" name="__tabbed_5" type="radio" /><input id="__tabbed_5_11" name="__tabbed_5" type="radio" /><input id="__tabbed_5_12" name="__tabbed_5" type="radio" /><input id="__tabbed_5_13" name="__tabbed_5" type="radio" /><div class="tabbed-labels"><label for="__tabbed_5_1">Python</label><label for="__tabbed_5_2">C++</label><label for="__tabbed_5_3">Java</label><label for="__tabbed_5_4">C#</label><label for="__tabbed_5_5">Go</label><label for="__tabbed_5_6">Swift</label><label for="__tabbed_5_7">JS</label><label for="__tabbed_5_8">TS</label><label for="__tabbed_5_9">Dart</label><label for="__tabbed_5_10">Rust</label><label for="__tabbed_5_11">C</label><label for="__tabbed_5_12">Kotlin</label><label for="__tabbed_5_13">Ruby</label></div>
|
||
<div class="tabbed-content">
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-52-1" name="__codelineno-52-1" href="#__codelineno-52-1"></a><span class="c1"># 2 つのリストを連結</span>
|
||
<a id="__codelineno-52-2" name="__codelineno-52-2" href="#__codelineno-52-2"></a><span class="n">nums1</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="mi">6</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">9</span><span class="p">]</span>
|
||
<a id="__codelineno-52-3" name="__codelineno-52-3" href="#__codelineno-52-3"></a><span class="n">nums</span> <span class="o">+=</span> <span class="n">nums1</span> <span class="c1"># リスト nums1 を nums の後ろに連結</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-53-1" name="__codelineno-53-1" href="#__codelineno-53-1"></a><span class="cm">/* 2 つのリストを連結 */</span>
|
||
<a id="__codelineno-53-2" name="__codelineno-53-2" href="#__codelineno-53-2"></a><span class="n">vector</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="w"> </span><span class="p">};</span>
|
||
<a id="__codelineno-53-3" name="__codelineno-53-3" href="#__codelineno-53-3"></a><span class="c1">// リスト nums1 を nums の後ろに連結</span>
|
||
<a id="__codelineno-53-4" name="__codelineno-53-4" href="#__codelineno-53-4"></a><span class="n">nums</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="n">nums</span><span class="p">.</span><span class="n">end</span><span class="p">(),</span><span class="w"> </span><span class="n">nums1</span><span class="p">.</span><span class="n">begin</span><span class="p">(),</span><span class="w"> </span><span class="n">nums1</span><span class="p">.</span><span class="n">end</span><span class="p">());</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-54-1" name="__codelineno-54-1" href="#__codelineno-54-1"></a><span class="cm">/* 2 つのリストを連結 */</span>
|
||
<a id="__codelineno-54-2" name="__codelineno-54-2" href="#__codelineno-54-2"></a><span class="n">List</span><span class="o"><</span><span class="n">Integer</span><span class="o">></span><span class="w"> </span><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><></span><span class="p">(</span><span class="n">Arrays</span><span class="p">.</span><span class="na">asList</span><span class="p">(</span><span class="k">new</span><span class="w"> </span><span class="n">Integer</span><span class="o">[]</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="w"> </span><span class="p">}));</span>
|
||
<a id="__codelineno-54-3" name="__codelineno-54-3" href="#__codelineno-54-3"></a><span class="n">nums</span><span class="p">.</span><span class="na">addAll</span><span class="p">(</span><span class="n">nums1</span><span class="p">);</span><span class="w"> </span><span class="c1">// リスト nums1 を nums の後ろに連結</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-55-1" name="__codelineno-55-1" href="#__codelineno-55-1"></a><span class="cm">/* 2 つのリストを連結 */</span>
|
||
<a id="__codelineno-55-2" name="__codelineno-55-2" href="#__codelineno-55-2"></a><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="p">];</span>
|
||
<a id="__codelineno-55-3" name="__codelineno-55-3" href="#__codelineno-55-3"></a><span class="n">nums</span><span class="p">.</span><span class="n">AddRange</span><span class="p">(</span><span class="n">nums1</span><span class="p">);</span><span class="w"> </span><span class="c1">// リスト nums1 を nums の後ろに連結</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-56-1" name="__codelineno-56-1" href="#__codelineno-56-1"></a><span class="cm">/* 2 つのリストを連結 */</span>
|
||
<a id="__codelineno-56-2" name="__codelineno-56-2" href="#__codelineno-56-2"></a><span class="nx">nums1</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="p">[]</span><span class="kt">int</span><span class="p">{</span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="p">}</span>
|
||
<a id="__codelineno-56-3" name="__codelineno-56-3" href="#__codelineno-56-3"></a><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">nums</span><span class="p">,</span><span class="w"> </span><span class="nx">nums1</span><span class="o">...</span><span class="p">)</span><span class="w"> </span><span class="c1">// リスト nums1 を nums の後ろに連結</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-57-1" name="__codelineno-57-1" href="#__codelineno-57-1"></a><span class="cm">/* 2 つのリストを連結 */</span>
|
||
<a id="__codelineno-57-2" name="__codelineno-57-2" href="#__codelineno-57-2"></a><span class="kd">let</span><span class="w"> </span><span class="nv">nums1</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="p">[</span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="p">]</span>
|
||
<a id="__codelineno-57-3" name="__codelineno-57-3" href="#__codelineno-57-3"></a><span class="n">nums</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="n">contentsOf</span><span class="p">:</span><span class="w"> </span><span class="n">nums1</span><span class="p">)</span><span class="w"> </span><span class="c1">// リスト nums1 を nums の後ろに連結</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-58-1" name="__codelineno-58-1" href="#__codelineno-58-1"></a><span class="cm">/* 2 つのリストを連結 */</span>
|
||
<a id="__codelineno-58-2" name="__codelineno-58-2" href="#__codelineno-58-2"></a><span class="kd">const</span><span class="w"> </span><span class="nx">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="mf">6</span><span class="p">,</span><span class="w"> </span><span class="mf">8</span><span class="p">,</span><span class="w"> </span><span class="mf">7</span><span class="p">,</span><span class="w"> </span><span class="mf">10</span><span class="p">,</span><span class="w"> </span><span class="mf">9</span><span class="p">];</span>
|
||
<a id="__codelineno-58-3" name="__codelineno-58-3" href="#__codelineno-58-3"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(...</span><span class="nx">nums1</span><span class="p">);</span><span class="w"> </span><span class="c1">// リスト nums1 を nums の後ろに連結</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-59-1" name="__codelineno-59-1" href="#__codelineno-59-1"></a><span class="cm">/* 2 つのリストを連結 */</span>
|
||
<a id="__codelineno-59-2" name="__codelineno-59-2" href="#__codelineno-59-2"></a><span class="kd">const</span><span class="w"> </span><span class="nx">nums1</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">[]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="mf">6</span><span class="p">,</span><span class="w"> </span><span class="mf">8</span><span class="p">,</span><span class="w"> </span><span class="mf">7</span><span class="p">,</span><span class="w"> </span><span class="mf">10</span><span class="p">,</span><span class="w"> </span><span class="mf">9</span><span class="p">];</span>
|
||
<a id="__codelineno-59-3" name="__codelineno-59-3" href="#__codelineno-59-3"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">push</span><span class="p">(...</span><span class="nx">nums1</span><span class="p">);</span><span class="w"> </span><span class="c1">// リスト nums1 を nums の後ろに連結</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.dart</span><pre><span></span><code><a id="__codelineno-60-1" name="__codelineno-60-1" href="#__codelineno-60-1"></a><span class="cm">/* 2 つのリストを連結 */</span>
|
||
<a id="__codelineno-60-2" name="__codelineno-60-2" href="#__codelineno-60-2"></a><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="m">6</span><span class="p">,</span><span class="w"> </span><span class="m">8</span><span class="p">,</span><span class="w"> </span><span class="m">7</span><span class="p">,</span><span class="w"> </span><span class="m">10</span><span class="p">,</span><span class="w"> </span><span class="m">9</span><span class="p">];</span>
|
||
<a id="__codelineno-60-3" name="__codelineno-60-3" href="#__codelineno-60-3"></a><span class="n">nums</span><span class="p">.</span><span class="n">addAll</span><span class="p">(</span><span class="n">nums1</span><span class="p">);</span><span class="w"> </span><span class="c1">// リスト nums1 を nums の後ろに連結</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rs</span><pre><span></span><code><a id="__codelineno-61-1" name="__codelineno-61-1" href="#__codelineno-61-1"></a><span class="cm">/* 2 つのリストを連結 */</span>
|
||
<a id="__codelineno-61-2" name="__codelineno-61-2" href="#__codelineno-61-2"></a><span class="kd">let</span><span class="w"> </span><span class="n">nums1</span><span class="p">:</span><span class="w"> </span><span class="nb">Vec</span><span class="o"><</span><span class="kt">i32</span><span class="o">></span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="fm">vec!</span><span class="p">[</span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="p">];</span>
|
||
<a id="__codelineno-61-3" name="__codelineno-61-3" href="#__codelineno-61-3"></a><span class="n">nums</span><span class="p">.</span><span class="n">extend</span><span class="p">(</span><span class="n">nums1</span><span class="p">);</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-62-1" name="__codelineno-62-1" href="#__codelineno-62-1"></a><span class="c1">// C には組み込みの動的配列がない</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.kt</span><pre><span></span><code><a id="__codelineno-63-1" name="__codelineno-63-1" href="#__codelineno-63-1"></a><span class="cm">/* 2 つのリストを連結 */</span>
|
||
<a id="__codelineno-63-2" name="__codelineno-63-2" href="#__codelineno-63-2"></a><span class="kd">val</span><span class="w"> </span><span class="nv">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">intArrayOf</span><span class="p">(</span><span class="m">6</span><span class="p">,</span><span class="w"> </span><span class="m">8</span><span class="p">,</span><span class="w"> </span><span class="m">7</span><span class="p">,</span><span class="w"> </span><span class="m">10</span><span class="p">,</span><span class="w"> </span><span class="m">9</span><span class="p">).</span><span class="na">toMutableList</span><span class="p">()</span>
|
||
<a id="__codelineno-63-3" name="__codelineno-63-3" href="#__codelineno-63-3"></a><span class="n">nums</span><span class="p">.</span><span class="na">addAll</span><span class="p">(</span><span class="n">nums1</span><span class="p">)</span><span class="w"> </span><span class="c1">// リスト nums1 を nums の後ろに連結</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rb</span><pre><span></span><code><a id="__codelineno-64-1" name="__codelineno-64-1" href="#__codelineno-64-1"></a><span class="c1"># 2 つのリストを連結</span>
|
||
<a id="__codelineno-64-2" name="__codelineno-64-2" href="#__codelineno-64-2"></a><span class="n">nums1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">[</span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="o">]</span>
|
||
<a id="__codelineno-64-3" name="__codelineno-64-3" href="#__codelineno-64-3"></a><span class="n">nums</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">nums1</span>
|
||
</code></pre></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<details class="pythontutor">
|
||
<summary>可視化実行</summary>
|
||
<p>https://pythontutor.com/render.html#code=%22%22%22Driver%20Code%22%22%22%0Aif%20__name__%20%3D%3D%20%22__main__%22%3A%0A%20%20%20%20%23%20%E5%88%9D%E5%A7%8B%E5%8C%96%E5%88%97%E8%A1%A8%0A%20%20%20%20nums%20%3D%20%5B1,%203,%202,%205,%204%5D%0A%20%20%20%20%0A%20%20%20%20%23%20%E6%8B%BC%E6%8E%A5%E4%B8%A4%E4%B8%AA%E5%88%97%E8%A1%A8%0A%20%20%20%20nums1%20%3D%20%5B6,%208,%207,%2010,%209%5D%0A%20%20%20%20nums%20%2B%3D%20nums1%20%20%23%20%E5%B0%86%E5%88%97%E8%A1%A8%20nums1%20%E6%8B%BC%E6%8E%A5%E5%88%B0%20nums%20%E4%B9%8B%E5%90%8E&cumulative=false&curInstr=3&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=311&rawInputLstJSON=%5B%5D&textReferences=false</p>
|
||
</details>
|
||
<h3 id="6">6. リストをソート<a class="headerlink" href="#6" title="Permanent link">¶</a></h3>
|
||
<p>リストのソートが完了すると、配列系アルゴリズム問題でよく問われる「二分探索」や「両ポインタ」アルゴリズムを使えるようになる。</p>
|
||
<div class="tabbed-set tabbed-alternate" data-tabs="6:13"><input checked="checked" id="__tabbed_6_1" name="__tabbed_6" type="radio" /><input id="__tabbed_6_2" name="__tabbed_6" type="radio" /><input id="__tabbed_6_3" name="__tabbed_6" type="radio" /><input id="__tabbed_6_4" name="__tabbed_6" type="radio" /><input id="__tabbed_6_5" name="__tabbed_6" type="radio" /><input id="__tabbed_6_6" name="__tabbed_6" type="radio" /><input id="__tabbed_6_7" name="__tabbed_6" type="radio" /><input id="__tabbed_6_8" name="__tabbed_6" type="radio" /><input id="__tabbed_6_9" name="__tabbed_6" type="radio" /><input id="__tabbed_6_10" name="__tabbed_6" type="radio" /><input id="__tabbed_6_11" name="__tabbed_6" type="radio" /><input id="__tabbed_6_12" name="__tabbed_6" type="radio" /><input id="__tabbed_6_13" name="__tabbed_6" type="radio" /><div class="tabbed-labels"><label for="__tabbed_6_1">Python</label><label for="__tabbed_6_2">C++</label><label for="__tabbed_6_3">Java</label><label for="__tabbed_6_4">C#</label><label for="__tabbed_6_5">Go</label><label for="__tabbed_6_6">Swift</label><label for="__tabbed_6_7">JS</label><label for="__tabbed_6_8">TS</label><label for="__tabbed_6_9">Dart</label><label for="__tabbed_6_10">Rust</label><label for="__tabbed_6_11">C</label><label for="__tabbed_6_12">Kotlin</label><label for="__tabbed_6_13">Ruby</label></div>
|
||
<div class="tabbed-content">
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-65-1" name="__codelineno-65-1" href="#__codelineno-65-1"></a><span class="c1"># リストをソート</span>
|
||
<a id="__codelineno-65-2" name="__codelineno-65-2" href="#__codelineno-65-2"></a><span class="n">nums</span><span class="o">.</span><span class="n">sort</span><span class="p">()</span> <span class="c1"># ソート後、リスト要素は小さい順に並ぶ</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-66-1" name="__codelineno-66-1" href="#__codelineno-66-1"></a><span class="cm">/* リストをソート */</span>
|
||
<a id="__codelineno-66-2" name="__codelineno-66-2" href="#__codelineno-66-2"></a><span class="n">sort</span><span class="p">(</span><span class="n">nums</span><span class="p">.</span><span class="n">begin</span><span class="p">(),</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">end</span><span class="p">());</span><span class="w"> </span><span class="c1">// ソート後、リスト要素は小さい順に並ぶ</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-67-1" name="__codelineno-67-1" href="#__codelineno-67-1"></a><span class="cm">/* リストをソート */</span>
|
||
<a id="__codelineno-67-2" name="__codelineno-67-2" href="#__codelineno-67-2"></a><span class="n">Collections</span><span class="p">.</span><span class="na">sort</span><span class="p">(</span><span class="n">nums</span><span class="p">);</span><span class="w"> </span><span class="c1">// ソート後、リスト要素は小さい順に並ぶ</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-68-1" name="__codelineno-68-1" href="#__codelineno-68-1"></a><span class="cm">/* リストをソート */</span>
|
||
<a id="__codelineno-68-2" name="__codelineno-68-2" href="#__codelineno-68-2"></a><span class="n">nums</span><span class="p">.</span><span class="n">Sort</span><span class="p">();</span><span class="w"> </span><span class="c1">// ソート後、リスト要素は小さい順に並ぶ</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-69-1" name="__codelineno-69-1" href="#__codelineno-69-1"></a><span class="cm">/* リストをソート */</span>
|
||
<a id="__codelineno-69-2" name="__codelineno-69-2" href="#__codelineno-69-2"></a><span class="nx">sort</span><span class="p">.</span><span class="nx">Ints</span><span class="p">(</span><span class="nx">nums</span><span class="p">)</span><span class="w"> </span><span class="c1">// ソート後、リスト要素は小さい順に並ぶ</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-70-1" name="__codelineno-70-1" href="#__codelineno-70-1"></a><span class="cm">/* リストをソート */</span>
|
||
<a id="__codelineno-70-2" name="__codelineno-70-2" href="#__codelineno-70-2"></a><span class="n">nums</span><span class="p">.</span><span class="bp">sort</span><span class="p">()</span><span class="w"> </span><span class="c1">// ソート後、リスト要素は小さい順に並ぶ</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-71-1" name="__codelineno-71-1" href="#__codelineno-71-1"></a><span class="cm">/* リストをソート */</span>
|
||
<a id="__codelineno-71-2" name="__codelineno-71-2" href="#__codelineno-71-2"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">sort</span><span class="p">((</span><span class="nx">a</span><span class="p">,</span><span class="w"> </span><span class="nx">b</span><span class="p">)</span><span class="w"> </span><span class="p">=></span><span class="w"> </span><span class="nx">a</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="nx">b</span><span class="p">);</span><span class="w"> </span><span class="c1">// ソート後、リスト要素は小さい順に並ぶ</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-72-1" name="__codelineno-72-1" href="#__codelineno-72-1"></a><span class="cm">/* リストをソート */</span>
|
||
<a id="__codelineno-72-2" name="__codelineno-72-2" href="#__codelineno-72-2"></a><span class="nx">nums</span><span class="p">.</span><span class="nx">sort</span><span class="p">((</span><span class="nx">a</span><span class="p">,</span><span class="w"> </span><span class="nx">b</span><span class="p">)</span><span class="w"> </span><span class="p">=></span><span class="w"> </span><span class="nx">a</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="nx">b</span><span class="p">);</span><span class="w"> </span><span class="c1">// ソート後、リスト要素は小さい順に並ぶ</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.dart</span><pre><span></span><code><a id="__codelineno-73-1" name="__codelineno-73-1" href="#__codelineno-73-1"></a><span class="cm">/* リストをソート */</span>
|
||
<a id="__codelineno-73-2" name="__codelineno-73-2" href="#__codelineno-73-2"></a><span class="n">nums</span><span class="p">.</span><span class="n">sort</span><span class="p">();</span><span class="w"> </span><span class="c1">// ソート後、リスト要素は小さい順に並ぶ</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rs</span><pre><span></span><code><a id="__codelineno-74-1" name="__codelineno-74-1" href="#__codelineno-74-1"></a><span class="cm">/* リストをソート */</span>
|
||
<a id="__codelineno-74-2" name="__codelineno-74-2" href="#__codelineno-74-2"></a><span class="n">nums</span><span class="p">.</span><span class="n">sort</span><span class="p">();</span><span class="w"> </span><span class="c1">// ソート後、リスト要素は小さい順に並ぶ</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-75-1" name="__codelineno-75-1" href="#__codelineno-75-1"></a><span class="c1">// C には組み込みの動的配列がない</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.kt</span><pre><span></span><code><a id="__codelineno-76-1" name="__codelineno-76-1" href="#__codelineno-76-1"></a><span class="cm">/* リストをソート */</span>
|
||
<a id="__codelineno-76-2" name="__codelineno-76-2" href="#__codelineno-76-2"></a><span class="n">nums</span><span class="p">.</span><span class="na">sort</span><span class="p">()</span><span class="w"> </span><span class="c1">// ソート後、リスト要素は小さい順に並ぶ</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">list.rb</span><pre><span></span><code><a id="__codelineno-77-1" name="__codelineno-77-1" href="#__codelineno-77-1"></a><span class="c1"># リストをソート</span>
|
||
<a id="__codelineno-77-2" name="__codelineno-77-2" href="#__codelineno-77-2"></a><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="o">.</span><span class="n">sort</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="o">|</span><span class="n">a</span><span class="p">,</span><span class="w"> </span><span class="n">b</span><span class="o">|</span><span class="w"> </span><span class="n">a</span><span class="w"> </span><span class="o"><=></span><span class="w"> </span><span class="n">b</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="c1"># ソート後、リスト要素は小さい順に並ぶ</span>
|
||
</code></pre></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<details class="pythontutor">
|
||
<summary>可視化実行</summary>
|
||
<p>https://pythontutor.com/render.html#code=%22%22%22Driver%20Code%22%22%22%0Aif%20__name__%20%3D%3D%20%22__main__%22%3A%0A%20%20%20%20%23%20%E5%88%9D%E5%A7%8B%E5%8C%96%E5%88%97%E8%A1%A8%0A%20%20%20%20nums%20%3D%20%5B1,%203,%202,%205,%204%5D%0A%20%20%20%20%0A%20%20%20%20%23%20%E6%8E%92%E5%BA%8F%E5%88%97%E8%A1%A8%0A%20%20%20%20nums.sort%28%29%20%20%23%20%E6%8E%92%E5%BA%8F%E5%90%8E%EF%BC%8C%E5%88%97%E8%A1%A8%E5%85%83%E7%B4%A0%E4%BB%8E%E5%B0%8F%E5%88%B0%E5%A4%A7%E6%8E%92%E5%88%97&cumulative=false&curInstr=3&heapPrimitives=nevernest&mode=display&origin=opt-frontend.js&py=311&rawInputLstJSON=%5B%5D&textReferences=false</p>
|
||
</details>
|
||
<h2 id="432">4.3.2 リストの実装<a class="headerlink" href="#432" title="Permanent link">¶</a></h2>
|
||
<p>多くのプログラミング言語にはリストが組み込まれており、たとえば Java、C++、Python などがある。それらの実装は比較的複雑で、初期容量や拡張倍率など各種パラメータの設定もよく考えられている。興味があればソースコードを参照して学べる。</p>
|
||
<p>リストの動作原理への理解を深めるため、ここでは簡易版のリストを実装し、以下の 3 つの設計ポイントを含める。</p>
|
||
<ul>
|
||
<li><strong>初期容量</strong>：妥当な配列の初期容量を選ぶ。この例では 10 を初期容量として選ぶ。</li>
|
||
<li><strong>要素数の記録</strong>：<code>size</code> という変数を宣言して、現在のリスト要素数を記録し、要素の挿入と削除に応じてリアルタイムに更新する。この変数により、リスト末尾の位置を特定し、拡張が必要かどうかを判断できる。</li>
|
||
<li><strong>拡張機構</strong>：要素を挿入する時点でリスト容量がいっぱいなら、拡張が必要になる。まず拡張倍率に応じてより大きな配列を作成し、次に現在の配列の全要素を順に新しい配列へ移す。この例では、配列を毎回以前の 2 倍に拡張する。</li>
|
||
</ul>
|
||
<div class="tabbed-set tabbed-alternate" data-tabs="7:13"><input checked="checked" id="__tabbed_7_1" name="__tabbed_7" type="radio" /><input id="__tabbed_7_2" name="__tabbed_7" type="radio" /><input id="__tabbed_7_3" name="__tabbed_7" type="radio" /><input id="__tabbed_7_4" name="__tabbed_7" type="radio" /><input id="__tabbed_7_5" name="__tabbed_7" type="radio" /><input id="__tabbed_7_6" name="__tabbed_7" type="radio" /><input id="__tabbed_7_7" name="__tabbed_7" type="radio" /><input id="__tabbed_7_8" name="__tabbed_7" type="radio" /><input id="__tabbed_7_9" name="__tabbed_7" type="radio" /><input id="__tabbed_7_10" name="__tabbed_7" type="radio" /><input id="__tabbed_7_11" name="__tabbed_7" type="radio" /><input id="__tabbed_7_12" name="__tabbed_7" type="radio" /><input id="__tabbed_7_13" name="__tabbed_7" type="radio" /><div class="tabbed-labels"><label for="__tabbed_7_1">Python</label><label for="__tabbed_7_2">C++</label><label for="__tabbed_7_3">Java</label><label for="__tabbed_7_4">C#</label><label for="__tabbed_7_5">Go</label><label for="__tabbed_7_6">Swift</label><label for="__tabbed_7_7">JS</label><label for="__tabbed_7_8">TS</label><label for="__tabbed_7_9">Dart</label><label for="__tabbed_7_10">Rust</label><label for="__tabbed_7_11">C</label><label for="__tabbed_7_12">Kotlin</label><label for="__tabbed_7_13">Ruby</label></div>
|
||
<div class="tabbed-content">
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.py</span><pre><span></span><code><a id="__codelineno-78-1" name="__codelineno-78-1" href="#__codelineno-78-1"></a><span class="k">class</span><span class="w"> </span><span class="nc">MyList</span><span class="p">:</span>
|
||
<a id="__codelineno-78-2" name="__codelineno-78-2" href="#__codelineno-78-2"></a><span class="w"> </span><span class="sd">"""リストクラス"""</span>
|
||
<a id="__codelineno-78-3" name="__codelineno-78-3" href="#__codelineno-78-3"></a>
|
||
<a id="__codelineno-78-4" name="__codelineno-78-4" href="#__codelineno-78-4"></a> <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||
<a id="__codelineno-78-5" name="__codelineno-78-5" href="#__codelineno-78-5"></a><span class="w"> </span><span class="sd">"""コンストラクタ"""</span>
|
||
<a id="__codelineno-78-6" name="__codelineno-78-6" href="#__codelineno-78-6"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_capacity</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">10</span> <span class="c1"># リスト容量</span>
|
||
<a id="__codelineno-78-7" name="__codelineno-78-7" href="#__codelineno-78-7"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">_capacity</span> <span class="c1"># 配列（リスト要素を格納）</span>
|
||
<a id="__codelineno-78-8" name="__codelineno-78-8" href="#__codelineno-78-8"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">0</span> <span class="c1"># リストの長さ（現在の要素数）</span>
|
||
<a id="__codelineno-78-9" name="__codelineno-78-9" href="#__codelineno-78-9"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_extend_ratio</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">2</span> <span class="c1"># リスト拡張時の増加倍率</span>
|
||
<a id="__codelineno-78-10" name="__codelineno-78-10" href="#__codelineno-78-10"></a>
|
||
<a id="__codelineno-78-11" name="__codelineno-78-11" href="#__codelineno-78-11"></a> <span class="k">def</span><span class="w"> </span><span class="nf">size</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="nb">int</span><span class="p">:</span>
|
||
<a id="__codelineno-78-12" name="__codelineno-78-12" href="#__codelineno-78-12"></a><span class="w"> </span><span class="sd">"""リストの長さを取得（現在の要素数）"""</span>
|
||
<a id="__codelineno-78-13" name="__codelineno-78-13" href="#__codelineno-78-13"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span>
|
||
<a id="__codelineno-78-14" name="__codelineno-78-14" href="#__codelineno-78-14"></a>
|
||
<a id="__codelineno-78-15" name="__codelineno-78-15" href="#__codelineno-78-15"></a> <span class="k">def</span><span class="w"> </span><span class="nf">capacity</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="nb">int</span><span class="p">:</span>
|
||
<a id="__codelineno-78-16" name="__codelineno-78-16" href="#__codelineno-78-16"></a><span class="w"> </span><span class="sd">"""リスト容量を取得する"""</span>
|
||
<a id="__codelineno-78-17" name="__codelineno-78-17" href="#__codelineno-78-17"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_capacity</span>
|
||
<a id="__codelineno-78-18" name="__codelineno-78-18" href="#__codelineno-78-18"></a>
|
||
<a id="__codelineno-78-19" name="__codelineno-78-19" href="#__codelineno-78-19"></a> <span class="k">def</span><span class="w"> </span><span class="nf">get</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">index</span><span class="p">:</span> <span class="nb">int</span><span class="p">)</span> <span class="o">-></span> <span class="nb">int</span><span class="p">:</span>
|
||
<a id="__codelineno-78-20" name="__codelineno-78-20" href="#__codelineno-78-20"></a><span class="w"> </span><span class="sd">"""要素にアクセス"""</span>
|
||
<a id="__codelineno-78-21" name="__codelineno-78-21" href="#__codelineno-78-21"></a> <span class="c1"># インデックスが範囲外なら例外を送出する。以下同様</span>
|
||
<a id="__codelineno-78-22" name="__codelineno-78-22" href="#__codelineno-78-22"></a> <span class="k">if</span> <span class="n">index</span> <span class="o"><</span> <span class="mi">0</span> <span class="ow">or</span> <span class="n">index</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">:</span>
|
||
<a id="__codelineno-78-23" name="__codelineno-78-23" href="#__codelineno-78-23"></a> <span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="s2">"インデックスが範囲外です"</span><span class="p">)</span>
|
||
<a id="__codelineno-78-24" name="__codelineno-78-24" href="#__codelineno-78-24"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
|
||
<a id="__codelineno-78-25" name="__codelineno-78-25" href="#__codelineno-78-25"></a>
|
||
<a id="__codelineno-78-26" name="__codelineno-78-26" href="#__codelineno-78-26"></a> <span class="k">def</span><span class="w"> </span><span class="nf">set</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">num</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">index</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span>
|
||
<a id="__codelineno-78-27" name="__codelineno-78-27" href="#__codelineno-78-27"></a><span class="w"> </span><span class="sd">"""要素を更新"""</span>
|
||
<a id="__codelineno-78-28" name="__codelineno-78-28" href="#__codelineno-78-28"></a> <span class="k">if</span> <span class="n">index</span> <span class="o"><</span> <span class="mi">0</span> <span class="ow">or</span> <span class="n">index</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">:</span>
|
||
<a id="__codelineno-78-29" name="__codelineno-78-29" href="#__codelineno-78-29"></a> <span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="s2">"インデックスが範囲外です"</span><span class="p">)</span>
|
||
<a id="__codelineno-78-30" name="__codelineno-78-30" href="#__codelineno-78-30"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span> <span class="o">=</span> <span class="n">num</span>
|
||
<a id="__codelineno-78-31" name="__codelineno-78-31" href="#__codelineno-78-31"></a>
|
||
<a id="__codelineno-78-32" name="__codelineno-78-32" href="#__codelineno-78-32"></a> <span class="k">def</span><span class="w"> </span><span class="nf">add</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">num</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span>
|
||
<a id="__codelineno-78-33" name="__codelineno-78-33" href="#__codelineno-78-33"></a><span class="w"> </span><span class="sd">"""末尾に要素を追加"""</span>
|
||
<a id="__codelineno-78-34" name="__codelineno-78-34" href="#__codelineno-78-34"></a> <span class="c1"># 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-78-35" name="__codelineno-78-35" href="#__codelineno-78-35"></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">size</span><span class="p">()</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">capacity</span><span class="p">():</span>
|
||
<a id="__codelineno-78-36" name="__codelineno-78-36" href="#__codelineno-78-36"></a> <span class="bp">self</span><span class="o">.</span><span class="n">extend_capacity</span><span class="p">()</span>
|
||
<a id="__codelineno-78-37" name="__codelineno-78-37" href="#__codelineno-78-37"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">]</span> <span class="o">=</span> <span class="n">num</span>
|
||
<a id="__codelineno-78-38" name="__codelineno-78-38" href="#__codelineno-78-38"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">+=</span> <span class="mi">1</span>
|
||
<a id="__codelineno-78-39" name="__codelineno-78-39" href="#__codelineno-78-39"></a>
|
||
<a id="__codelineno-78-40" name="__codelineno-78-40" href="#__codelineno-78-40"></a> <span class="k">def</span><span class="w"> </span><span class="nf">insert</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">num</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">index</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span>
|
||
<a id="__codelineno-78-41" name="__codelineno-78-41" href="#__codelineno-78-41"></a><span class="w"> </span><span class="sd">"""中間に要素を挿入"""</span>
|
||
<a id="__codelineno-78-42" name="__codelineno-78-42" href="#__codelineno-78-42"></a> <span class="k">if</span> <span class="n">index</span> <span class="o"><</span> <span class="mi">0</span> <span class="ow">or</span> <span class="n">index</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">:</span>
|
||
<a id="__codelineno-78-43" name="__codelineno-78-43" href="#__codelineno-78-43"></a> <span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="s2">"インデックスが範囲外です"</span><span class="p">)</span>
|
||
<a id="__codelineno-78-44" name="__codelineno-78-44" href="#__codelineno-78-44"></a> <span class="c1"># 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-78-45" name="__codelineno-78-45" href="#__codelineno-78-45"></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">capacity</span><span class="p">():</span>
|
||
<a id="__codelineno-78-46" name="__codelineno-78-46" href="#__codelineno-78-46"></a> <span class="bp">self</span><span class="o">.</span><span class="n">extend_capacity</span><span class="p">()</span>
|
||
<a id="__codelineno-78-47" name="__codelineno-78-47" href="#__codelineno-78-47"></a> <span class="c1"># index 以降の要素をすべて 1 つ後ろへずらす</span>
|
||
<a id="__codelineno-78-48" name="__codelineno-78-48" href="#__codelineno-78-48"></a> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="n">index</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">):</span>
|
||
<a id="__codelineno-78-49" name="__codelineno-78-49" href="#__codelineno-78-49"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span>
|
||
<a id="__codelineno-78-50" name="__codelineno-78-50" href="#__codelineno-78-50"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span> <span class="o">=</span> <span class="n">num</span>
|
||
<a id="__codelineno-78-51" name="__codelineno-78-51" href="#__codelineno-78-51"></a> <span class="c1"># 要素数を更新</span>
|
||
<a id="__codelineno-78-52" name="__codelineno-78-52" href="#__codelineno-78-52"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">+=</span> <span class="mi">1</span>
|
||
<a id="__codelineno-78-53" name="__codelineno-78-53" href="#__codelineno-78-53"></a>
|
||
<a id="__codelineno-78-54" name="__codelineno-78-54" href="#__codelineno-78-54"></a> <span class="k">def</span><span class="w"> </span><span class="nf">remove</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">index</span><span class="p">:</span> <span class="nb">int</span><span class="p">)</span> <span class="o">-></span> <span class="nb">int</span><span class="p">:</span>
|
||
<a id="__codelineno-78-55" name="__codelineno-78-55" href="#__codelineno-78-55"></a><span class="w"> </span><span class="sd">"""要素を削除"""</span>
|
||
<a id="__codelineno-78-56" name="__codelineno-78-56" href="#__codelineno-78-56"></a> <span class="k">if</span> <span class="n">index</span> <span class="o"><</span> <span class="mi">0</span> <span class="ow">or</span> <span class="n">index</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">:</span>
|
||
<a id="__codelineno-78-57" name="__codelineno-78-57" href="#__codelineno-78-57"></a> <span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="s2">"インデックスが範囲外です"</span><span class="p">)</span>
|
||
<a id="__codelineno-78-58" name="__codelineno-78-58" href="#__codelineno-78-58"></a> <span class="n">num</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
|
||
<a id="__codelineno-78-59" name="__codelineno-78-59" href="#__codelineno-78-59"></a> <span class="c1"># インデックス index より後の要素をすべて 1 つ前に移動する</span>
|
||
<a id="__codelineno-78-60" name="__codelineno-78-60" href="#__codelineno-78-60"></a> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">index</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">-</span> <span class="mi">1</span><span class="p">):</span>
|
||
<a id="__codelineno-78-61" name="__codelineno-78-61" href="#__codelineno-78-61"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span>
|
||
<a id="__codelineno-78-62" name="__codelineno-78-62" href="#__codelineno-78-62"></a> <span class="c1"># 要素数を更新</span>
|
||
<a id="__codelineno-78-63" name="__codelineno-78-63" href="#__codelineno-78-63"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">-=</span> <span class="mi">1</span>
|
||
<a id="__codelineno-78-64" name="__codelineno-78-64" href="#__codelineno-78-64"></a> <span class="c1"># 削除された要素を返す</span>
|
||
<a id="__codelineno-78-65" name="__codelineno-78-65" href="#__codelineno-78-65"></a> <span class="k">return</span> <span class="n">num</span>
|
||
<a id="__codelineno-78-66" name="__codelineno-78-66" href="#__codelineno-78-66"></a>
|
||
<a id="__codelineno-78-67" name="__codelineno-78-67" href="#__codelineno-78-67"></a> <span class="k">def</span><span class="w"> </span><span class="nf">extend_capacity</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||
<a id="__codelineno-78-68" name="__codelineno-78-68" href="#__codelineno-78-68"></a><span class="w"> </span><span class="sd">"""リストの拡張"""</span>
|
||
<a id="__codelineno-78-69" name="__codelineno-78-69" href="#__codelineno-78-69"></a> <span class="c1"># 元の配列の `_extend_ratio` 倍の長さを持つ新しい配列を作成し、元の配列を新しい配列にコピーする</span>
|
||
<a id="__codelineno-78-70" name="__codelineno-78-70" href="#__codelineno-78-70"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span> <span class="o">+</span> <span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">capacity</span><span class="p">()</span> <span class="o">*</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_extend_ratio</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span>
|
||
<a id="__codelineno-78-71" name="__codelineno-78-71" href="#__codelineno-78-71"></a> <span class="c1"># リストの容量を更新</span>
|
||
<a id="__codelineno-78-72" name="__codelineno-78-72" href="#__codelineno-78-72"></a> <span class="bp">self</span><span class="o">.</span><span class="n">_capacity</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">)</span>
|
||
<a id="__codelineno-78-73" name="__codelineno-78-73" href="#__codelineno-78-73"></a>
|
||
<a id="__codelineno-78-74" name="__codelineno-78-74" href="#__codelineno-78-74"></a> <span class="k">def</span><span class="w"> </span><span class="nf">to_array</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="nb">list</span><span class="p">[</span><span class="nb">int</span><span class="p">]:</span>
|
||
<a id="__codelineno-78-75" name="__codelineno-78-75" href="#__codelineno-78-75"></a><span class="w"> </span><span class="sd">"""有効長のリストを返す"""</span>
|
||
<a id="__codelineno-78-76" name="__codelineno-78-76" href="#__codelineno-78-76"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_arr</span><span class="p">[:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_size</span><span class="p">]</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.cpp</span><pre><span></span><code><a id="__codelineno-79-1" name="__codelineno-79-1" href="#__codelineno-79-1"></a><span class="cm">/* リストクラス */</span>
|
||
<a id="__codelineno-79-2" name="__codelineno-79-2" href="#__codelineno-79-2"></a><span class="k">class</span><span class="w"> </span><span class="nc">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-3" name="__codelineno-79-3" href="#__codelineno-79-3"></a><span class="w"> </span><span class="k">private</span><span class="o">:</span>
|
||
<a id="__codelineno-79-4" name="__codelineno-79-4" href="#__codelineno-79-4"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">arr</span><span class="p">;</span><span class="w"> </span><span class="c1">// 配列（リスト要素を格納）</span>
|
||
<a id="__codelineno-79-5" name="__codelineno-79-5" href="#__codelineno-79-5"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">arrCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// リスト容量</span>
|
||
<a id="__codelineno-79-6" name="__codelineno-79-6" href="#__codelineno-79-6"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">arrSize</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// リストの長さ（現在の要素数）</span>
|
||
<a id="__codelineno-79-7" name="__codelineno-79-7" href="#__codelineno-79-7"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">extendRatio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// リスト拡張時の増加倍率</span>
|
||
<a id="__codelineno-79-8" name="__codelineno-79-8" href="#__codelineno-79-8"></a>
|
||
<a id="__codelineno-79-9" name="__codelineno-79-9" href="#__codelineno-79-9"></a><span class="w"> </span><span class="k">public</span><span class="o">:</span>
|
||
<a id="__codelineno-79-10" name="__codelineno-79-10" href="#__codelineno-79-10"></a><span class="w"> </span><span class="cm">/* コンストラクタ */</span>
|
||
<a id="__codelineno-79-11" name="__codelineno-79-11" href="#__codelineno-79-11"></a><span class="w"> </span><span class="n">MyList</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-12" name="__codelineno-79-12" href="#__codelineno-79-12"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="p">[</span><span class="n">arrCapacity</span><span class="p">];</span>
|
||
<a id="__codelineno-79-13" name="__codelineno-79-13" href="#__codelineno-79-13"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-14" name="__codelineno-79-14" href="#__codelineno-79-14"></a>
|
||
<a id="__codelineno-79-15" name="__codelineno-79-15" href="#__codelineno-79-15"></a><span class="w"> </span><span class="cm">/* デストラクタメソッド */</span>
|
||
<a id="__codelineno-79-16" name="__codelineno-79-16" href="#__codelineno-79-16"></a><span class="w"> </span><span class="o">~</span><span class="n">MyList</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-17" name="__codelineno-79-17" href="#__codelineno-79-17"></a><span class="w"> </span><span class="k">delete</span><span class="p">[]</span><span class="w"> </span><span class="n">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-79-18" name="__codelineno-79-18" href="#__codelineno-79-18"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-19" name="__codelineno-79-19" href="#__codelineno-79-19"></a>
|
||
<a id="__codelineno-79-20" name="__codelineno-79-20" href="#__codelineno-79-20"></a><span class="w"> </span><span class="cm">/* リストの長さを取得（現在の要素数） */</span>
|
||
<a id="__codelineno-79-21" name="__codelineno-79-21" href="#__codelineno-79-21"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-22" name="__codelineno-79-22" href="#__codelineno-79-22"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arrSize</span><span class="p">;</span>
|
||
<a id="__codelineno-79-23" name="__codelineno-79-23" href="#__codelineno-79-23"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-24" name="__codelineno-79-24" href="#__codelineno-79-24"></a>
|
||
<a id="__codelineno-79-25" name="__codelineno-79-25" href="#__codelineno-79-25"></a><span class="w"> </span><span class="cm">/* リスト容量を取得する */</span>
|
||
<a id="__codelineno-79-26" name="__codelineno-79-26" href="#__codelineno-79-26"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-27" name="__codelineno-79-27" href="#__codelineno-79-27"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arrCapacity</span><span class="p">;</span>
|
||
<a id="__codelineno-79-28" name="__codelineno-79-28" href="#__codelineno-79-28"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-29" name="__codelineno-79-29" href="#__codelineno-79-29"></a>
|
||
<a id="__codelineno-79-30" name="__codelineno-79-30" href="#__codelineno-79-30"></a><span class="w"> </span><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-79-31" name="__codelineno-79-31" href="#__codelineno-79-31"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">get</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-32" name="__codelineno-79-32" href="#__codelineno-79-32"></a><span class="w"> </span><span class="c1">// インデックスが範囲外なら例外を送出する。以下同様</span>
|
||
<a id="__codelineno-79-33" name="__codelineno-79-33" href="#__codelineno-79-33"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">())</span>
|
||
<a id="__codelineno-79-34" name="__codelineno-79-34" href="#__codelineno-79-34"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">out_of_range</span><span class="p">(</span><span class="s">"インデックスが範囲外"</span><span class="p">);</span>
|
||
<a id="__codelineno-79-35" name="__codelineno-79-35" href="#__codelineno-79-35"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-79-36" name="__codelineno-79-36" href="#__codelineno-79-36"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-37" name="__codelineno-79-37" href="#__codelineno-79-37"></a>
|
||
<a id="__codelineno-79-38" name="__codelineno-79-38" href="#__codelineno-79-38"></a><span class="w"> </span><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-79-39" name="__codelineno-79-39" href="#__codelineno-79-39"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">set</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-40" name="__codelineno-79-40" href="#__codelineno-79-40"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">())</span>
|
||
<a id="__codelineno-79-41" name="__codelineno-79-41" href="#__codelineno-79-41"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">out_of_range</span><span class="p">(</span><span class="s">"インデックスが範囲外"</span><span class="p">);</span>
|
||
<a id="__codelineno-79-42" name="__codelineno-79-42" href="#__codelineno-79-42"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-79-43" name="__codelineno-79-43" href="#__codelineno-79-43"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-44" name="__codelineno-79-44" href="#__codelineno-79-44"></a>
|
||
<a id="__codelineno-79-45" name="__codelineno-79-45" href="#__codelineno-79-45"></a><span class="w"> </span><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-79-46" name="__codelineno-79-46" href="#__codelineno-79-46"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">add</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-47" name="__codelineno-79-47" href="#__codelineno-79-47"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-79-48" name="__codelineno-79-48" href="#__codelineno-79-48"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">())</span>
|
||
<a id="__codelineno-79-49" name="__codelineno-79-49" href="#__codelineno-79-49"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-79-50" name="__codelineno-79-50" href="#__codelineno-79-50"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">size</span><span class="p">()]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-79-51" name="__codelineno-79-51" href="#__codelineno-79-51"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-79-52" name="__codelineno-79-52" href="#__codelineno-79-52"></a><span class="w"> </span><span class="n">arrSize</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-79-53" name="__codelineno-79-53" href="#__codelineno-79-53"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-54" name="__codelineno-79-54" href="#__codelineno-79-54"></a>
|
||
<a id="__codelineno-79-55" name="__codelineno-79-55" href="#__codelineno-79-55"></a><span class="w"> </span><span class="cm">/* 中間に要素を挿入 */</span>
|
||
<a id="__codelineno-79-56" name="__codelineno-79-56" href="#__codelineno-79-56"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">insert</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-57" name="__codelineno-79-57" href="#__codelineno-79-57"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">())</span>
|
||
<a id="__codelineno-79-58" name="__codelineno-79-58" href="#__codelineno-79-58"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">out_of_range</span><span class="p">(</span><span class="s">"インデックスが範囲外"</span><span class="p">);</span>
|
||
<a id="__codelineno-79-59" name="__codelineno-79-59" href="#__codelineno-79-59"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-79-60" name="__codelineno-79-60" href="#__codelineno-79-60"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">())</span>
|
||
<a id="__codelineno-79-61" name="__codelineno-79-61" href="#__codelineno-79-61"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-79-62" name="__codelineno-79-62" href="#__codelineno-79-62"></a><span class="w"> </span><span class="c1">// index 以降の要素をすべて 1 つ後ろへずらす</span>
|
||
<a id="__codelineno-79-63" name="__codelineno-79-63" href="#__codelineno-79-63"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">--</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-64" name="__codelineno-79-64" href="#__codelineno-79-64"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">];</span>
|
||
<a id="__codelineno-79-65" name="__codelineno-79-65" href="#__codelineno-79-65"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-66" name="__codelineno-79-66" href="#__codelineno-79-66"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-79-67" name="__codelineno-79-67" href="#__codelineno-79-67"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-79-68" name="__codelineno-79-68" href="#__codelineno-79-68"></a><span class="w"> </span><span class="n">arrSize</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-79-69" name="__codelineno-79-69" href="#__codelineno-79-69"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-70" name="__codelineno-79-70" href="#__codelineno-79-70"></a>
|
||
<a id="__codelineno-79-71" name="__codelineno-79-71" href="#__codelineno-79-71"></a><span class="w"> </span><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-79-72" name="__codelineno-79-72" href="#__codelineno-79-72"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">remove</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-73" name="__codelineno-79-73" href="#__codelineno-79-73"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">())</span>
|
||
<a id="__codelineno-79-74" name="__codelineno-79-74" href="#__codelineno-79-74"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">out_of_range</span><span class="p">(</span><span class="s">"インデックスが範囲外"</span><span class="p">);</span>
|
||
<a id="__codelineno-79-75" name="__codelineno-79-75" href="#__codelineno-79-75"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-79-76" name="__codelineno-79-76" href="#__codelineno-79-76"></a><span class="w"> </span><span class="c1">// インデックス index より後の要素をすべて 1 つ前に移動する</span>
|
||
<a id="__codelineno-79-77" name="__codelineno-79-77" href="#__codelineno-79-77"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-78" name="__codelineno-79-78" href="#__codelineno-79-78"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">];</span>
|
||
<a id="__codelineno-79-79" name="__codelineno-79-79" href="#__codelineno-79-79"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-80" name="__codelineno-79-80" href="#__codelineno-79-80"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-79-81" name="__codelineno-79-81" href="#__codelineno-79-81"></a><span class="w"> </span><span class="n">arrSize</span><span class="o">--</span><span class="p">;</span>
|
||
<a id="__codelineno-79-82" name="__codelineno-79-82" href="#__codelineno-79-82"></a><span class="w"> </span><span class="c1">// 削除された要素を返す</span>
|
||
<a id="__codelineno-79-83" name="__codelineno-79-83" href="#__codelineno-79-83"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-79-84" name="__codelineno-79-84" href="#__codelineno-79-84"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-85" name="__codelineno-79-85" href="#__codelineno-79-85"></a>
|
||
<a id="__codelineno-79-86" name="__codelineno-79-86" href="#__codelineno-79-86"></a><span class="w"> </span><span class="cm">/* リストの拡張 */</span>
|
||
<a id="__codelineno-79-87" name="__codelineno-79-87" href="#__codelineno-79-87"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">extendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-88" name="__codelineno-79-88" href="#__codelineno-79-88"></a><span class="w"> </span><span class="c1">// 元の配列の `extendRatio` 倍の長さを持つ新しい配列を作成する</span>
|
||
<a id="__codelineno-79-89" name="__codelineno-79-89" href="#__codelineno-79-89"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">newCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">extendRatio</span><span class="p">;</span>
|
||
<a id="__codelineno-79-90" name="__codelineno-79-90" href="#__codelineno-79-90"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">tmp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-79-91" name="__codelineno-79-91" href="#__codelineno-79-91"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="p">[</span><span class="n">newCapacity</span><span class="p">];</span>
|
||
<a id="__codelineno-79-92" name="__codelineno-79-92" href="#__codelineno-79-92"></a><span class="w"> </span><span class="c1">// 元の配列の全要素を新しい配列にコピー</span>
|
||
<a id="__codelineno-79-93" name="__codelineno-79-93" href="#__codelineno-79-93"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">();</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-94" name="__codelineno-79-94" href="#__codelineno-79-94"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">tmp</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
|
||
<a id="__codelineno-79-95" name="__codelineno-79-95" href="#__codelineno-79-95"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-96" name="__codelineno-79-96" href="#__codelineno-79-96"></a><span class="w"> </span><span class="c1">// メモリを解放する</span>
|
||
<a id="__codelineno-79-97" name="__codelineno-79-97" href="#__codelineno-79-97"></a><span class="w"> </span><span class="k">delete</span><span class="p">[]</span><span class="w"> </span><span class="n">tmp</span><span class="p">;</span>
|
||
<a id="__codelineno-79-98" name="__codelineno-79-98" href="#__codelineno-79-98"></a><span class="w"> </span><span class="n">arrCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">newCapacity</span><span class="p">;</span>
|
||
<a id="__codelineno-79-99" name="__codelineno-79-99" href="#__codelineno-79-99"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-100" name="__codelineno-79-100" href="#__codelineno-79-100"></a>
|
||
<a id="__codelineno-79-101" name="__codelineno-79-101" href="#__codelineno-79-101"></a><span class="w"> </span><span class="cm">/* 出力用にリストを Vector に変換 */</span>
|
||
<a id="__codelineno-79-102" name="__codelineno-79-102" href="#__codelineno-79-102"></a><span class="w"> </span><span class="n">vector</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">toVector</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-103" name="__codelineno-79-103" href="#__codelineno-79-103"></a><span class="w"> </span><span class="c1">// 有効長の範囲内のリスト要素のみを変換</span>
|
||
<a id="__codelineno-79-104" name="__codelineno-79-104" href="#__codelineno-79-104"></a><span class="w"> </span><span class="n">vector</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">vec</span><span class="p">(</span><span class="n">size</span><span class="p">());</span>
|
||
<a id="__codelineno-79-105" name="__codelineno-79-105" href="#__codelineno-79-105"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">();</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-79-106" name="__codelineno-79-106" href="#__codelineno-79-106"></a><span class="w"> </span><span class="n">vec</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
|
||
<a id="__codelineno-79-107" name="__codelineno-79-107" href="#__codelineno-79-107"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-108" name="__codelineno-79-108" href="#__codelineno-79-108"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">vec</span><span class="p">;</span>
|
||
<a id="__codelineno-79-109" name="__codelineno-79-109" href="#__codelineno-79-109"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-79-110" name="__codelineno-79-110" href="#__codelineno-79-110"></a><span class="p">};</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.java</span><pre><span></span><code><a id="__codelineno-80-1" name="__codelineno-80-1" href="#__codelineno-80-1"></a><span class="cm">/* リストクラス */</span>
|
||
<a id="__codelineno-80-2" name="__codelineno-80-2" href="#__codelineno-80-2"></a><span class="kd">class</span> <span class="nc">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-3" name="__codelineno-80-3" href="#__codelineno-80-3"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kt">int</span><span class="o">[]</span><span class="w"> </span><span class="n">arr</span><span class="p">;</span><span class="w"> </span><span class="c1">// 配列（リスト要素を格納）</span>
|
||
<a id="__codelineno-80-4" name="__codelineno-80-4" href="#__codelineno-80-4"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// リスト容量</span>
|
||
<a id="__codelineno-80-5" name="__codelineno-80-5" href="#__codelineno-80-5"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// リストの長さ（現在の要素数）</span>
|
||
<a id="__codelineno-80-6" name="__codelineno-80-6" href="#__codelineno-80-6"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">extendRatio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// リスト拡張時の増加倍率</span>
|
||
<a id="__codelineno-80-7" name="__codelineno-80-7" href="#__codelineno-80-7"></a>
|
||
<a id="__codelineno-80-8" name="__codelineno-80-8" href="#__codelineno-80-8"></a><span class="w"> </span><span class="cm">/* コンストラクタ */</span>
|
||
<a id="__codelineno-80-9" name="__codelineno-80-9" href="#__codelineno-80-9"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="nf">MyList</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-10" name="__codelineno-80-10" href="#__codelineno-80-10"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="o">[</span><span class="n">capacity</span><span class="o">]</span><span class="p">;</span>
|
||
<a id="__codelineno-80-11" name="__codelineno-80-11" href="#__codelineno-80-11"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-12" name="__codelineno-80-12" href="#__codelineno-80-12"></a>
|
||
<a id="__codelineno-80-13" name="__codelineno-80-13" href="#__codelineno-80-13"></a><span class="w"> </span><span class="cm">/* リストの長さを取得（現在の要素数） */</span>
|
||
<a id="__codelineno-80-14" name="__codelineno-80-14" href="#__codelineno-80-14"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-15" name="__codelineno-80-15" href="#__codelineno-80-15"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">size</span><span class="p">;</span>
|
||
<a id="__codelineno-80-16" name="__codelineno-80-16" href="#__codelineno-80-16"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-17" name="__codelineno-80-17" href="#__codelineno-80-17"></a>
|
||
<a id="__codelineno-80-18" name="__codelineno-80-18" href="#__codelineno-80-18"></a><span class="w"> </span><span class="cm">/* リスト容量を取得する */</span>
|
||
<a id="__codelineno-80-19" name="__codelineno-80-19" href="#__codelineno-80-19"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-20" name="__codelineno-80-20" href="#__codelineno-80-20"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">capacity</span><span class="p">;</span>
|
||
<a id="__codelineno-80-21" name="__codelineno-80-21" href="#__codelineno-80-21"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-22" name="__codelineno-80-22" href="#__codelineno-80-22"></a>
|
||
<a id="__codelineno-80-23" name="__codelineno-80-23" href="#__codelineno-80-23"></a><span class="w"> </span><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-80-24" name="__codelineno-80-24" href="#__codelineno-80-24"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">get</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-25" name="__codelineno-80-25" href="#__codelineno-80-25"></a><span class="w"> </span><span class="c1">// インデックスが範囲外なら例外を送出する。以下同様</span>
|
||
<a id="__codelineno-80-26" name="__codelineno-80-26" href="#__codelineno-80-26"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">)</span>
|
||
<a id="__codelineno-80-27" name="__codelineno-80-27" href="#__codelineno-80-27"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">(</span><span class="s">"インデックスが範囲外です"</span><span class="p">);</span>
|
||
<a id="__codelineno-80-28" name="__codelineno-80-28" href="#__codelineno-80-28"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">index</span><span class="o">]</span><span class="p">;</span>
|
||
<a id="__codelineno-80-29" name="__codelineno-80-29" href="#__codelineno-80-29"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-30" name="__codelineno-80-30" href="#__codelineno-80-30"></a>
|
||
<a id="__codelineno-80-31" name="__codelineno-80-31" href="#__codelineno-80-31"></a><span class="w"> </span><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-80-32" name="__codelineno-80-32" href="#__codelineno-80-32"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">set</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-33" name="__codelineno-80-33" href="#__codelineno-80-33"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">)</span>
|
||
<a id="__codelineno-80-34" name="__codelineno-80-34" href="#__codelineno-80-34"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">(</span><span class="s">"インデックスが範囲外です"</span><span class="p">);</span>
|
||
<a id="__codelineno-80-35" name="__codelineno-80-35" href="#__codelineno-80-35"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">index</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-80-36" name="__codelineno-80-36" href="#__codelineno-80-36"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-37" name="__codelineno-80-37" href="#__codelineno-80-37"></a>
|
||
<a id="__codelineno-80-38" name="__codelineno-80-38" href="#__codelineno-80-38"></a><span class="w"> </span><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-80-39" name="__codelineno-80-39" href="#__codelineno-80-39"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">add</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-40" name="__codelineno-80-40" href="#__codelineno-80-40"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-80-41" name="__codelineno-80-41" href="#__codelineno-80-41"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">())</span>
|
||
<a id="__codelineno-80-42" name="__codelineno-80-42" href="#__codelineno-80-42"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-80-43" name="__codelineno-80-43" href="#__codelineno-80-43"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">size</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-80-44" name="__codelineno-80-44" href="#__codelineno-80-44"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-80-45" name="__codelineno-80-45" href="#__codelineno-80-45"></a><span class="w"> </span><span class="n">size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-80-46" name="__codelineno-80-46" href="#__codelineno-80-46"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-47" name="__codelineno-80-47" href="#__codelineno-80-47"></a>
|
||
<a id="__codelineno-80-48" name="__codelineno-80-48" href="#__codelineno-80-48"></a><span class="w"> </span><span class="cm">/* 中間に要素を挿入 */</span>
|
||
<a id="__codelineno-80-49" name="__codelineno-80-49" href="#__codelineno-80-49"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">insert</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-50" name="__codelineno-80-50" href="#__codelineno-80-50"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">)</span>
|
||
<a id="__codelineno-80-51" name="__codelineno-80-51" href="#__codelineno-80-51"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">(</span><span class="s">"インデックスが範囲外です"</span><span class="p">);</span>
|
||
<a id="__codelineno-80-52" name="__codelineno-80-52" href="#__codelineno-80-52"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-80-53" name="__codelineno-80-53" href="#__codelineno-80-53"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">())</span>
|
||
<a id="__codelineno-80-54" name="__codelineno-80-54" href="#__codelineno-80-54"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-80-55" name="__codelineno-80-55" href="#__codelineno-80-55"></a><span class="w"> </span><span class="c1">// index 以降の要素をすべて 1 つ後ろへずらす</span>
|
||
<a id="__codelineno-80-56" name="__codelineno-80-56" href="#__codelineno-80-56"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">--</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-57" name="__codelineno-80-57" href="#__codelineno-80-57"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">j</span><span class="o">]</span><span class="p">;</span>
|
||
<a id="__codelineno-80-58" name="__codelineno-80-58" href="#__codelineno-80-58"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-59" name="__codelineno-80-59" href="#__codelineno-80-59"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">index</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-80-60" name="__codelineno-80-60" href="#__codelineno-80-60"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-80-61" name="__codelineno-80-61" href="#__codelineno-80-61"></a><span class="w"> </span><span class="n">size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-80-62" name="__codelineno-80-62" href="#__codelineno-80-62"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-63" name="__codelineno-80-63" href="#__codelineno-80-63"></a>
|
||
<a id="__codelineno-80-64" name="__codelineno-80-64" href="#__codelineno-80-64"></a><span class="w"> </span><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-80-65" name="__codelineno-80-65" href="#__codelineno-80-65"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">remove</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-66" name="__codelineno-80-66" href="#__codelineno-80-66"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">)</span>
|
||
<a id="__codelineno-80-67" name="__codelineno-80-67" href="#__codelineno-80-67"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">(</span><span class="s">"インデックスが範囲外です"</span><span class="p">);</span>
|
||
<a id="__codelineno-80-68" name="__codelineno-80-68" href="#__codelineno-80-68"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">index</span><span class="o">]</span><span class="p">;</span>
|
||
<a id="__codelineno-80-69" name="__codelineno-80-69" href="#__codelineno-80-69"></a><span class="w"> </span><span class="c1">// インデックス index より後の要素をすべて 1 つ前に移動する</span>
|
||
<a id="__codelineno-80-70" name="__codelineno-80-70" href="#__codelineno-80-70"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-71" name="__codelineno-80-71" href="#__codelineno-80-71"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">j</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="o">]</span><span class="p">;</span>
|
||
<a id="__codelineno-80-72" name="__codelineno-80-72" href="#__codelineno-80-72"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-73" name="__codelineno-80-73" href="#__codelineno-80-73"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-80-74" name="__codelineno-80-74" href="#__codelineno-80-74"></a><span class="w"> </span><span class="n">size</span><span class="o">--</span><span class="p">;</span>
|
||
<a id="__codelineno-80-75" name="__codelineno-80-75" href="#__codelineno-80-75"></a><span class="w"> </span><span class="c1">// 削除された要素を返す</span>
|
||
<a id="__codelineno-80-76" name="__codelineno-80-76" href="#__codelineno-80-76"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-80-77" name="__codelineno-80-77" href="#__codelineno-80-77"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-78" name="__codelineno-80-78" href="#__codelineno-80-78"></a>
|
||
<a id="__codelineno-80-79" name="__codelineno-80-79" href="#__codelineno-80-79"></a><span class="w"> </span><span class="cm">/* リストの拡張 */</span>
|
||
<a id="__codelineno-80-80" name="__codelineno-80-80" href="#__codelineno-80-80"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">extendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-81" name="__codelineno-80-81" href="#__codelineno-80-81"></a><span class="w"> </span><span class="c1">// 元の配列の extendRatio 倍の長さを持つ新しい配列を作成し、元の配列をコピーする</span>
|
||
<a id="__codelineno-80-82" name="__codelineno-80-82" href="#__codelineno-80-82"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Arrays</span><span class="p">.</span><span class="na">copyOf</span><span class="p">(</span><span class="n">arr</span><span class="p">,</span><span class="w"> </span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">extendRatio</span><span class="p">);</span>
|
||
<a id="__codelineno-80-83" name="__codelineno-80-83" href="#__codelineno-80-83"></a><span class="w"> </span><span class="c1">// リストの容量を更新</span>
|
||
<a id="__codelineno-80-84" name="__codelineno-80-84" href="#__codelineno-80-84"></a><span class="w"> </span><span class="n">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">.</span><span class="na">length</span><span class="p">;</span>
|
||
<a id="__codelineno-80-85" name="__codelineno-80-85" href="#__codelineno-80-85"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-86" name="__codelineno-80-86" href="#__codelineno-80-86"></a>
|
||
<a id="__codelineno-80-87" name="__codelineno-80-87" href="#__codelineno-80-87"></a><span class="w"> </span><span class="cm">/* リストを配列に変換する */</span>
|
||
<a id="__codelineno-80-88" name="__codelineno-80-88" href="#__codelineno-80-88"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">int</span><span class="o">[]</span><span class="w"> </span><span class="nf">toArray</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-89" name="__codelineno-80-89" href="#__codelineno-80-89"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">size</span><span class="p">();</span>
|
||
<a id="__codelineno-80-90" name="__codelineno-80-90" href="#__codelineno-80-90"></a><span class="w"> </span><span class="c1">// 有効長の範囲内のリスト要素のみを変換</span>
|
||
<a id="__codelineno-80-91" name="__codelineno-80-91" href="#__codelineno-80-91"></a><span class="w"> </span><span class="kt">int</span><span class="o">[]</span><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="o">[</span><span class="n">size</span><span class="o">]</span><span class="p">;</span>
|
||
<a id="__codelineno-80-92" name="__codelineno-80-92" href="#__codelineno-80-92"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-80-93" name="__codelineno-80-93" href="#__codelineno-80-93"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">i</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">get</span><span class="p">(</span><span class="n">i</span><span class="p">);</span>
|
||
<a id="__codelineno-80-94" name="__codelineno-80-94" href="#__codelineno-80-94"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-95" name="__codelineno-80-95" href="#__codelineno-80-95"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-80-96" name="__codelineno-80-96" href="#__codelineno-80-96"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-80-97" name="__codelineno-80-97" href="#__codelineno-80-97"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.cs</span><pre><span></span><code><a id="__codelineno-81-1" name="__codelineno-81-1" href="#__codelineno-81-1"></a><span class="cm">/* リストクラス */</span>
|
||
<a id="__codelineno-81-2" name="__codelineno-81-2" href="#__codelineno-81-2"></a><span class="k">class</span><span class="w"> </span><span class="nc">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-3" name="__codelineno-81-3" href="#__codelineno-81-3"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="kt">int</span><span class="p">[]</span><span class="w"> </span><span class="n">arr</span><span class="p">;</span><span class="w"> </span><span class="c1">// 配列（リスト要素を格納）</span>
|
||
<a id="__codelineno-81-4" name="__codelineno-81-4" href="#__codelineno-81-4"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">arrCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// リスト容量</span>
|
||
<a id="__codelineno-81-5" name="__codelineno-81-5" href="#__codelineno-81-5"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">arrSize</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// リストの長さ（現在の要素数）</span>
|
||
<a id="__codelineno-81-6" name="__codelineno-81-6" href="#__codelineno-81-6"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="k">readonly</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">extendRatio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// リスト拡張時の増加倍率</span>
|
||
<a id="__codelineno-81-7" name="__codelineno-81-7" href="#__codelineno-81-7"></a>
|
||
<a id="__codelineno-81-8" name="__codelineno-81-8" href="#__codelineno-81-8"></a><span class="w"> </span><span class="cm">/* コンストラクタ */</span>
|
||
<a id="__codelineno-81-9" name="__codelineno-81-9" href="#__codelineno-81-9"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nf">MyList</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-10" name="__codelineno-81-10" href="#__codelineno-81-10"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="p">[</span><span class="n">arrCapacity</span><span class="p">];</span>
|
||
<a id="__codelineno-81-11" name="__codelineno-81-11" href="#__codelineno-81-11"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-12" name="__codelineno-81-12" href="#__codelineno-81-12"></a>
|
||
<a id="__codelineno-81-13" name="__codelineno-81-13" href="#__codelineno-81-13"></a><span class="w"> </span><span class="cm">/* リストの長さを取得（現在の要素数） */</span>
|
||
<a id="__codelineno-81-14" name="__codelineno-81-14" href="#__codelineno-81-14"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">Size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-15" name="__codelineno-81-15" href="#__codelineno-81-15"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arrSize</span><span class="p">;</span>
|
||
<a id="__codelineno-81-16" name="__codelineno-81-16" href="#__codelineno-81-16"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-17" name="__codelineno-81-17" href="#__codelineno-81-17"></a>
|
||
<a id="__codelineno-81-18" name="__codelineno-81-18" href="#__codelineno-81-18"></a><span class="w"> </span><span class="cm">/* リスト容量を取得する */</span>
|
||
<a id="__codelineno-81-19" name="__codelineno-81-19" href="#__codelineno-81-19"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">Capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-20" name="__codelineno-81-20" href="#__codelineno-81-20"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arrCapacity</span><span class="p">;</span>
|
||
<a id="__codelineno-81-21" name="__codelineno-81-21" href="#__codelineno-81-21"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-22" name="__codelineno-81-22" href="#__codelineno-81-22"></a>
|
||
<a id="__codelineno-81-23" name="__codelineno-81-23" href="#__codelineno-81-23"></a><span class="w"> </span><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-81-24" name="__codelineno-81-24" href="#__codelineno-81-24"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">Get</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-25" name="__codelineno-81-25" href="#__codelineno-81-25"></a><span class="w"> </span><span class="c1">// インデックスが範囲外なら例外を送出する。以下同様</span>
|
||
<a id="__codelineno-81-26" name="__codelineno-81-26" href="#__codelineno-81-26"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">arrSize</span><span class="p">)</span>
|
||
<a id="__codelineno-81-27" name="__codelineno-81-27" href="#__codelineno-81-27"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="nf">IndexOutOfRangeException</span><span class="p">(</span><span class="s">"インデックスが範囲外です"</span><span class="p">);</span>
|
||
<a id="__codelineno-81-28" name="__codelineno-81-28" href="#__codelineno-81-28"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-81-29" name="__codelineno-81-29" href="#__codelineno-81-29"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-30" name="__codelineno-81-30" href="#__codelineno-81-30"></a>
|
||
<a id="__codelineno-81-31" name="__codelineno-81-31" href="#__codelineno-81-31"></a><span class="w"> </span><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-81-32" name="__codelineno-81-32" href="#__codelineno-81-32"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="k">void</span><span class="w"> </span><span class="nf">Set</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-33" name="__codelineno-81-33" href="#__codelineno-81-33"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">arrSize</span><span class="p">)</span>
|
||
<a id="__codelineno-81-34" name="__codelineno-81-34" href="#__codelineno-81-34"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="nf">IndexOutOfRangeException</span><span class="p">(</span><span class="s">"インデックスが範囲外です"</span><span class="p">);</span>
|
||
<a id="__codelineno-81-35" name="__codelineno-81-35" href="#__codelineno-81-35"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-81-36" name="__codelineno-81-36" href="#__codelineno-81-36"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-37" name="__codelineno-81-37" href="#__codelineno-81-37"></a>
|
||
<a id="__codelineno-81-38" name="__codelineno-81-38" href="#__codelineno-81-38"></a><span class="w"> </span><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-81-39" name="__codelineno-81-39" href="#__codelineno-81-39"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="k">void</span><span class="w"> </span><span class="nf">Add</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-40" name="__codelineno-81-40" href="#__codelineno-81-40"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-81-41" name="__codelineno-81-41" href="#__codelineno-81-41"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">arrSize</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">arrCapacity</span><span class="p">)</span>
|
||
<a id="__codelineno-81-42" name="__codelineno-81-42" href="#__codelineno-81-42"></a><span class="w"> </span><span class="n">ExtendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-81-43" name="__codelineno-81-43" href="#__codelineno-81-43"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">arrSize</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-81-44" name="__codelineno-81-44" href="#__codelineno-81-44"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-81-45" name="__codelineno-81-45" href="#__codelineno-81-45"></a><span class="w"> </span><span class="n">arrSize</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-81-46" name="__codelineno-81-46" href="#__codelineno-81-46"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-47" name="__codelineno-81-47" href="#__codelineno-81-47"></a>
|
||
<a id="__codelineno-81-48" name="__codelineno-81-48" href="#__codelineno-81-48"></a><span class="w"> </span><span class="cm">/* 中間に要素を挿入 */</span>
|
||
<a id="__codelineno-81-49" name="__codelineno-81-49" href="#__codelineno-81-49"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="k">void</span><span class="w"> </span><span class="nf">Insert</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-50" name="__codelineno-81-50" href="#__codelineno-81-50"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">arrSize</span><span class="p">)</span>
|
||
<a id="__codelineno-81-51" name="__codelineno-81-51" href="#__codelineno-81-51"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="nf">IndexOutOfRangeException</span><span class="p">(</span><span class="s">"インデックスが範囲外です"</span><span class="p">);</span>
|
||
<a id="__codelineno-81-52" name="__codelineno-81-52" href="#__codelineno-81-52"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-81-53" name="__codelineno-81-53" href="#__codelineno-81-53"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">arrSize</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">arrCapacity</span><span class="p">)</span>
|
||
<a id="__codelineno-81-54" name="__codelineno-81-54" href="#__codelineno-81-54"></a><span class="w"> </span><span class="n">ExtendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-81-55" name="__codelineno-81-55" href="#__codelineno-81-55"></a><span class="w"> </span><span class="c1">// index 以降の要素をすべて 1 つ後ろへずらす</span>
|
||
<a id="__codelineno-81-56" name="__codelineno-81-56" href="#__codelineno-81-56"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arrSize</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">--</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-57" name="__codelineno-81-57" href="#__codelineno-81-57"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">];</span>
|
||
<a id="__codelineno-81-58" name="__codelineno-81-58" href="#__codelineno-81-58"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-59" name="__codelineno-81-59" href="#__codelineno-81-59"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-81-60" name="__codelineno-81-60" href="#__codelineno-81-60"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-81-61" name="__codelineno-81-61" href="#__codelineno-81-61"></a><span class="w"> </span><span class="n">arrSize</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-81-62" name="__codelineno-81-62" href="#__codelineno-81-62"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-63" name="__codelineno-81-63" href="#__codelineno-81-63"></a>
|
||
<a id="__codelineno-81-64" name="__codelineno-81-64" href="#__codelineno-81-64"></a><span class="w"> </span><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-81-65" name="__codelineno-81-65" href="#__codelineno-81-65"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">Remove</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-66" name="__codelineno-81-66" href="#__codelineno-81-66"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">arrSize</span><span class="p">)</span>
|
||
<a id="__codelineno-81-67" name="__codelineno-81-67" href="#__codelineno-81-67"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="nf">IndexOutOfRangeException</span><span class="p">(</span><span class="s">"インデックスが範囲外です"</span><span class="p">);</span>
|
||
<a id="__codelineno-81-68" name="__codelineno-81-68" href="#__codelineno-81-68"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-81-69" name="__codelineno-81-69" href="#__codelineno-81-69"></a><span class="w"> </span><span class="c1">// インデックス index より後の要素をすべて 1 つ前に移動する</span>
|
||
<a id="__codelineno-81-70" name="__codelineno-81-70" href="#__codelineno-81-70"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">arrSize</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-71" name="__codelineno-81-71" href="#__codelineno-81-71"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">];</span>
|
||
<a id="__codelineno-81-72" name="__codelineno-81-72" href="#__codelineno-81-72"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-73" name="__codelineno-81-73" href="#__codelineno-81-73"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-81-74" name="__codelineno-81-74" href="#__codelineno-81-74"></a><span class="w"> </span><span class="n">arrSize</span><span class="o">--</span><span class="p">;</span>
|
||
<a id="__codelineno-81-75" name="__codelineno-81-75" href="#__codelineno-81-75"></a><span class="w"> </span><span class="c1">// 削除された要素を返す</span>
|
||
<a id="__codelineno-81-76" name="__codelineno-81-76" href="#__codelineno-81-76"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-81-77" name="__codelineno-81-77" href="#__codelineno-81-77"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-78" name="__codelineno-81-78" href="#__codelineno-81-78"></a>
|
||
<a id="__codelineno-81-79" name="__codelineno-81-79" href="#__codelineno-81-79"></a><span class="w"> </span><span class="cm">/* リストの拡張 */</span>
|
||
<a id="__codelineno-81-80" name="__codelineno-81-80" href="#__codelineno-81-80"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="k">void</span><span class="w"> </span><span class="nf">ExtendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-81" name="__codelineno-81-81" href="#__codelineno-81-81"></a><span class="w"> </span><span class="c1">// `arrCapacity * extendRatio` の長さを持つ配列を新規作成し、元の配列を新しい配列にコピーする</span>
|
||
<a id="__codelineno-81-82" name="__codelineno-81-82" href="#__codelineno-81-82"></a><span class="w"> </span><span class="n">Array</span><span class="p">.</span><span class="n">Resize</span><span class="p">(</span><span class="k">ref</span><span class="w"> </span><span class="n">arr</span><span class="p">,</span><span class="w"> </span><span class="n">arrCapacity</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">extendRatio</span><span class="p">);</span>
|
||
<a id="__codelineno-81-83" name="__codelineno-81-83" href="#__codelineno-81-83"></a><span class="w"> </span><span class="c1">// リストの容量を更新</span>
|
||
<a id="__codelineno-81-84" name="__codelineno-81-84" href="#__codelineno-81-84"></a><span class="w"> </span><span class="n">arrCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">.</span><span class="n">Length</span><span class="p">;</span>
|
||
<a id="__codelineno-81-85" name="__codelineno-81-85" href="#__codelineno-81-85"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-86" name="__codelineno-81-86" href="#__codelineno-81-86"></a>
|
||
<a id="__codelineno-81-87" name="__codelineno-81-87" href="#__codelineno-81-87"></a><span class="w"> </span><span class="cm">/* リストを配列に変換する */</span>
|
||
<a id="__codelineno-81-88" name="__codelineno-81-88" href="#__codelineno-81-88"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="kt">int</span><span class="p">[]</span><span class="w"> </span><span class="nf">ToArray</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-89" name="__codelineno-81-89" href="#__codelineno-81-89"></a><span class="w"> </span><span class="c1">// 有効長の範囲内のリスト要素のみを変換</span>
|
||
<a id="__codelineno-81-90" name="__codelineno-81-90" href="#__codelineno-81-90"></a><span class="w"> </span><span class="kt">int</span><span class="p">[]</span><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="p">[</span><span class="n">arrSize</span><span class="p">];</span>
|
||
<a id="__codelineno-81-91" name="__codelineno-81-91" href="#__codelineno-81-91"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">arrSize</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-81-92" name="__codelineno-81-92" href="#__codelineno-81-92"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Get</span><span class="p">(</span><span class="n">i</span><span class="p">);</span>
|
||
<a id="__codelineno-81-93" name="__codelineno-81-93" href="#__codelineno-81-93"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-94" name="__codelineno-81-94" href="#__codelineno-81-94"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-81-95" name="__codelineno-81-95" href="#__codelineno-81-95"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-81-96" name="__codelineno-81-96" href="#__codelineno-81-96"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.go</span><pre><span></span><code><a id="__codelineno-82-1" name="__codelineno-82-1" href="#__codelineno-82-1"></a><span class="cm">/* リストクラス */</span>
|
||
<a id="__codelineno-82-2" name="__codelineno-82-2" href="#__codelineno-82-2"></a><span class="kd">type</span><span class="w"> </span><span class="nx">myList</span><span class="w"> </span><span class="kd">struct</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-3" name="__codelineno-82-3" href="#__codelineno-82-3"></a><span class="w"> </span><span class="nx">arrCapacity</span><span class="w"> </span><span class="kt">int</span>
|
||
<a id="__codelineno-82-4" name="__codelineno-82-4" href="#__codelineno-82-4"></a><span class="w"> </span><span class="nx">arr</span><span class="w"> </span><span class="p">[]</span><span class="kt">int</span>
|
||
<a id="__codelineno-82-5" name="__codelineno-82-5" href="#__codelineno-82-5"></a><span class="w"> </span><span class="nx">arrSize</span><span class="w"> </span><span class="kt">int</span>
|
||
<a id="__codelineno-82-6" name="__codelineno-82-6" href="#__codelineno-82-6"></a><span class="w"> </span><span class="nx">extendRatio</span><span class="w"> </span><span class="kt">int</span>
|
||
<a id="__codelineno-82-7" name="__codelineno-82-7" href="#__codelineno-82-7"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-8" name="__codelineno-82-8" href="#__codelineno-82-8"></a>
|
||
<a id="__codelineno-82-9" name="__codelineno-82-9" href="#__codelineno-82-9"></a><span class="cm">/* コンストラクタ */</span>
|
||
<a id="__codelineno-82-10" name="__codelineno-82-10" href="#__codelineno-82-10"></a><span class="kd">func</span><span class="w"> </span><span class="nx">newMyList</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-11" name="__codelineno-82-11" href="#__codelineno-82-11"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="o">&</span><span class="nx">myList</span><span class="p">{</span>
|
||
<a id="__codelineno-82-12" name="__codelineno-82-12" href="#__codelineno-82-12"></a><span class="w"> </span><span class="nx">arrCapacity</span><span class="p">:</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="c1">// リスト容量</span>
|
||
<a id="__codelineno-82-13" name="__codelineno-82-13" href="#__codelineno-82-13"></a><span class="w"> </span><span class="nx">arr</span><span class="p">:</span><span class="w"> </span><span class="nb">make</span><span class="p">([]</span><span class="kt">int</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">),</span><span class="w"> </span><span class="c1">// 配列（リスト要素を格納）</span>
|
||
<a id="__codelineno-82-14" name="__codelineno-82-14" href="#__codelineno-82-14"></a><span class="w"> </span><span class="nx">arrSize</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="c1">// リストの長さ（現在の要素数）</span>
|
||
<a id="__codelineno-82-15" name="__codelineno-82-15" href="#__codelineno-82-15"></a><span class="w"> </span><span class="nx">extendRatio</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="c1">// リスト拡張時の増加倍率</span>
|
||
<a id="__codelineno-82-16" name="__codelineno-82-16" href="#__codelineno-82-16"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-82-17" name="__codelineno-82-17" href="#__codelineno-82-17"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-18" name="__codelineno-82-18" href="#__codelineno-82-18"></a>
|
||
<a id="__codelineno-82-19" name="__codelineno-82-19" href="#__codelineno-82-19"></a><span class="cm">/* リストの長さを取得（現在の要素数） */</span>
|
||
<a id="__codelineno-82-20" name="__codelineno-82-20" href="#__codelineno-82-20"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">size</span><span class="p">()</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-21" name="__codelineno-82-21" href="#__codelineno-82-21"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span>
|
||
<a id="__codelineno-82-22" name="__codelineno-82-22" href="#__codelineno-82-22"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-23" name="__codelineno-82-23" href="#__codelineno-82-23"></a>
|
||
<a id="__codelineno-82-24" name="__codelineno-82-24" href="#__codelineno-82-24"></a><span class="cm">/* リスト容量を取得する */</span>
|
||
<a id="__codelineno-82-25" name="__codelineno-82-25" href="#__codelineno-82-25"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">capacity</span><span class="p">()</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-26" name="__codelineno-82-26" href="#__codelineno-82-26"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrCapacity</span>
|
||
<a id="__codelineno-82-27" name="__codelineno-82-27" href="#__codelineno-82-27"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-28" name="__codelineno-82-28" href="#__codelineno-82-28"></a>
|
||
<a id="__codelineno-82-29" name="__codelineno-82-29" href="#__codelineno-82-29"></a><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-82-30" name="__codelineno-82-30" href="#__codelineno-82-30"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">get</span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-31" name="__codelineno-82-31" href="#__codelineno-82-31"></a><span class="w"> </span><span class="c1">// インデックスが範囲外なら例外を送出する。以下同様</span>
|
||
<a id="__codelineno-82-32" name="__codelineno-82-32" href="#__codelineno-82-32"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-33" name="__codelineno-82-33" href="#__codelineno-82-33"></a><span class="w"> </span><span class="nb">panic</span><span class="p">(</span><span class="s">"インデックスが範囲外です"</span><span class="p">)</span>
|
||
<a id="__codelineno-82-34" name="__codelineno-82-34" href="#__codelineno-82-34"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-82-35" name="__codelineno-82-35" href="#__codelineno-82-35"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span>
|
||
<a id="__codelineno-82-36" name="__codelineno-82-36" href="#__codelineno-82-36"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-37" name="__codelineno-82-37" href="#__codelineno-82-37"></a>
|
||
<a id="__codelineno-82-38" name="__codelineno-82-38" href="#__codelineno-82-38"></a><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-82-39" name="__codelineno-82-39" href="#__codelineno-82-39"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">set</span><span class="p">(</span><span class="nx">num</span><span class="p">,</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-40" name="__codelineno-82-40" href="#__codelineno-82-40"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-41" name="__codelineno-82-41" href="#__codelineno-82-41"></a><span class="w"> </span><span class="nb">panic</span><span class="p">(</span><span class="s">"インデックスが範囲外です"</span><span class="p">)</span>
|
||
<a id="__codelineno-82-42" name="__codelineno-82-42" href="#__codelineno-82-42"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-82-43" name="__codelineno-82-43" href="#__codelineno-82-43"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nx">num</span>
|
||
<a id="__codelineno-82-44" name="__codelineno-82-44" href="#__codelineno-82-44"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-45" name="__codelineno-82-45" href="#__codelineno-82-45"></a>
|
||
<a id="__codelineno-82-46" name="__codelineno-82-46" href="#__codelineno-82-46"></a><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-82-47" name="__codelineno-82-47" href="#__codelineno-82-47"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">add</span><span class="p">(</span><span class="nx">num</span><span class="w"> </span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-48" name="__codelineno-82-48" href="#__codelineno-82-48"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-82-49" name="__codelineno-82-49" href="#__codelineno-82-49"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrCapacity</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-50" name="__codelineno-82-50" href="#__codelineno-82-50"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">()</span>
|
||
<a id="__codelineno-82-51" name="__codelineno-82-51" href="#__codelineno-82-51"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-82-52" name="__codelineno-82-52" href="#__codelineno-82-52"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nx">num</span>
|
||
<a id="__codelineno-82-53" name="__codelineno-82-53" href="#__codelineno-82-53"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-82-54" name="__codelineno-82-54" href="#__codelineno-82-54"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="o">++</span>
|
||
<a id="__codelineno-82-55" name="__codelineno-82-55" href="#__codelineno-82-55"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-56" name="__codelineno-82-56" href="#__codelineno-82-56"></a>
|
||
<a id="__codelineno-82-57" name="__codelineno-82-57" href="#__codelineno-82-57"></a><span class="cm">/* 中間に要素を挿入 */</span>
|
||
<a id="__codelineno-82-58" name="__codelineno-82-58" href="#__codelineno-82-58"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">insert</span><span class="p">(</span><span class="nx">num</span><span class="p">,</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-59" name="__codelineno-82-59" href="#__codelineno-82-59"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-60" name="__codelineno-82-60" href="#__codelineno-82-60"></a><span class="w"> </span><span class="nb">panic</span><span class="p">(</span><span class="s">"インデックスが範囲外です"</span><span class="p">)</span>
|
||
<a id="__codelineno-82-61" name="__codelineno-82-61" href="#__codelineno-82-61"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-82-62" name="__codelineno-82-62" href="#__codelineno-82-62"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-82-63" name="__codelineno-82-63" href="#__codelineno-82-63"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrCapacity</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-64" name="__codelineno-82-64" href="#__codelineno-82-64"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">()</span>
|
||
<a id="__codelineno-82-65" name="__codelineno-82-65" href="#__codelineno-82-65"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-82-66" name="__codelineno-82-66" href="#__codelineno-82-66"></a><span class="w"> </span><span class="c1">// index 以降の要素をすべて 1 つ後ろへずらす</span>
|
||
<a id="__codelineno-82-67" name="__codelineno-82-67" href="#__codelineno-82-67"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">--</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-68" name="__codelineno-82-68" href="#__codelineno-82-68"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="o">+</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="p">]</span>
|
||
<a id="__codelineno-82-69" name="__codelineno-82-69" href="#__codelineno-82-69"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-82-70" name="__codelineno-82-70" href="#__codelineno-82-70"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nx">num</span>
|
||
<a id="__codelineno-82-71" name="__codelineno-82-71" href="#__codelineno-82-71"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-82-72" name="__codelineno-82-72" href="#__codelineno-82-72"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="o">++</span>
|
||
<a id="__codelineno-82-73" name="__codelineno-82-73" href="#__codelineno-82-73"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-74" name="__codelineno-82-74" href="#__codelineno-82-74"></a>
|
||
<a id="__codelineno-82-75" name="__codelineno-82-75" href="#__codelineno-82-75"></a><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-82-76" name="__codelineno-82-76" href="#__codelineno-82-76"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">remove</span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-77" name="__codelineno-82-77" href="#__codelineno-82-77"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-78" name="__codelineno-82-78" href="#__codelineno-82-78"></a><span class="w"> </span><span class="nb">panic</span><span class="p">(</span><span class="s">"インデックスが範囲外です"</span><span class="p">)</span>
|
||
<a id="__codelineno-82-79" name="__codelineno-82-79" href="#__codelineno-82-79"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-82-80" name="__codelineno-82-80" href="#__codelineno-82-80"></a><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span>
|
||
<a id="__codelineno-82-81" name="__codelineno-82-81" href="#__codelineno-82-81"></a><span class="w"> </span><span class="c1">// インデックス index より後の要素をすべて 1 つ前に移動する</span>
|
||
<a id="__codelineno-82-82" name="__codelineno-82-82" href="#__codelineno-82-82"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="o">-</span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">++</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-83" name="__codelineno-82-83" href="#__codelineno-82-83"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="o">+</span><span class="mi">1</span><span class="p">]</span>
|
||
<a id="__codelineno-82-84" name="__codelineno-82-84" href="#__codelineno-82-84"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-82-85" name="__codelineno-82-85" href="#__codelineno-82-85"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-82-86" name="__codelineno-82-86" href="#__codelineno-82-86"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="o">--</span>
|
||
<a id="__codelineno-82-87" name="__codelineno-82-87" href="#__codelineno-82-87"></a><span class="w"> </span><span class="c1">// 削除された要素を返す</span>
|
||
<a id="__codelineno-82-88" name="__codelineno-82-88" href="#__codelineno-82-88"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">num</span>
|
||
<a id="__codelineno-82-89" name="__codelineno-82-89" href="#__codelineno-82-89"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-90" name="__codelineno-82-90" href="#__codelineno-82-90"></a>
|
||
<a id="__codelineno-82-91" name="__codelineno-82-91" href="#__codelineno-82-91"></a><span class="cm">/* リストの拡張 */</span>
|
||
<a id="__codelineno-82-92" name="__codelineno-82-92" href="#__codelineno-82-92"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">extendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-93" name="__codelineno-82-93" href="#__codelineno-82-93"></a><span class="w"> </span><span class="c1">// 元の配列の extendRatio 倍の長さを持つ新しい配列を作成し、元の配列をコピーする</span>
|
||
<a id="__codelineno-82-94" name="__codelineno-82-94" href="#__codelineno-82-94"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">,</span><span class="w"> </span><span class="nb">make</span><span class="p">([]</span><span class="kt">int</span><span class="p">,</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrCapacity</span><span class="o">*</span><span class="p">(</span><span class="nx">l</span><span class="p">.</span><span class="nx">extendRatio</span><span class="o">-</span><span class="mi">1</span><span class="p">))</span><span class="o">...</span><span class="p">)</span>
|
||
<a id="__codelineno-82-95" name="__codelineno-82-95" href="#__codelineno-82-95"></a><span class="w"> </span><span class="c1">// リストの容量を更新</span>
|
||
<a id="__codelineno-82-96" name="__codelineno-82-96" href="#__codelineno-82-96"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arrCapacity</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">len</span><span class="p">(</span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">)</span>
|
||
<a id="__codelineno-82-97" name="__codelineno-82-97" href="#__codelineno-82-97"></a><span class="p">}</span>
|
||
<a id="__codelineno-82-98" name="__codelineno-82-98" href="#__codelineno-82-98"></a>
|
||
<a id="__codelineno-82-99" name="__codelineno-82-99" href="#__codelineno-82-99"></a><span class="cm">/* 有効長のリストを返す */</span>
|
||
<a id="__codelineno-82-100" name="__codelineno-82-100" href="#__codelineno-82-100"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">toArray</span><span class="p">()</span><span class="w"> </span><span class="p">[]</span><span class="kt">int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-82-101" name="__codelineno-82-101" href="#__codelineno-82-101"></a><span class="w"> </span><span class="c1">// 有効長の範囲内のリスト要素のみを変換</span>
|
||
<a id="__codelineno-82-102" name="__codelineno-82-102" href="#__codelineno-82-102"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">arr</span><span class="p">[:</span><span class="nx">l</span><span class="p">.</span><span class="nx">arrSize</span><span class="p">]</span>
|
||
<a id="__codelineno-82-103" name="__codelineno-82-103" href="#__codelineno-82-103"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.swift</span><pre><span></span><code><a id="__codelineno-83-1" name="__codelineno-83-1" href="#__codelineno-83-1"></a><span class="cm">/* リストクラス */</span>
|
||
<a id="__codelineno-83-2" name="__codelineno-83-2" href="#__codelineno-83-2"></a><span class="kd">class</span><span class="w"> </span><span class="nc">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-3" name="__codelineno-83-3" href="#__codelineno-83-3"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">arr</span><span class="p">:</span><span class="w"> </span><span class="p">[</span><span class="nb">Int</span><span class="p">]</span><span class="w"> </span><span class="c1">// 配列（リスト要素を格納）</span>
|
||
<a id="__codelineno-83-4" name="__codelineno-83-4" href="#__codelineno-83-4"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">_capacity</span><span class="p">:</span><span class="w"> </span><span class="nb">Int</span><span class="w"> </span><span class="c1">// リスト容量</span>
|
||
<a id="__codelineno-83-5" name="__codelineno-83-5" href="#__codelineno-83-5"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">_size</span><span class="p">:</span><span class="w"> </span><span class="nb">Int</span><span class="w"> </span><span class="c1">// リストの長さ（現在の要素数）</span>
|
||
<a id="__codelineno-83-6" name="__codelineno-83-6" href="#__codelineno-83-6"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nv">extendRatio</span><span class="p">:</span><span class="w"> </span><span class="nb">Int</span><span class="w"> </span><span class="c1">// リスト拡張時の増加倍率</span>
|
||
<a id="__codelineno-83-7" name="__codelineno-83-7" href="#__codelineno-83-7"></a>
|
||
<a id="__codelineno-83-8" name="__codelineno-83-8" href="#__codelineno-83-8"></a><span class="w"> </span><span class="cm">/* コンストラクタ */</span>
|
||
<a id="__codelineno-83-9" name="__codelineno-83-9" href="#__codelineno-83-9"></a><span class="w"> </span><span class="kd">init</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-10" name="__codelineno-83-10" href="#__codelineno-83-10"></a><span class="w"> </span><span class="n">_capacity</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="mi">10</span>
|
||
<a id="__codelineno-83-11" name="__codelineno-83-11" href="#__codelineno-83-11"></a><span class="w"> </span><span class="n">_size</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="mi">0</span>
|
||
<a id="__codelineno-83-12" name="__codelineno-83-12" href="#__codelineno-83-12"></a><span class="w"> </span><span class="n">extendRatio</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="mi">2</span>
|
||
<a id="__codelineno-83-13" name="__codelineno-83-13" href="#__codelineno-83-13"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="n">repeating</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="bp">count</span><span class="p">:</span><span class="w"> </span><span class="n">_capacity</span><span class="p">)</span>
|
||
<a id="__codelineno-83-14" name="__codelineno-83-14" href="#__codelineno-83-14"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-15" name="__codelineno-83-15" href="#__codelineno-83-15"></a>
|
||
<a id="__codelineno-83-16" name="__codelineno-83-16" href="#__codelineno-83-16"></a><span class="w"> </span><span class="cm">/* リストの長さを取得（現在の要素数） */</span>
|
||
<a id="__codelineno-83-17" name="__codelineno-83-17" href="#__codelineno-83-17"></a><span class="w"> </span><span class="kd">func</span><span class="w"> </span><span class="nf">size</span><span class="p">()</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="nb">Int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-18" name="__codelineno-83-18" href="#__codelineno-83-18"></a><span class="w"> </span><span class="n">_size</span>
|
||
<a id="__codelineno-83-19" name="__codelineno-83-19" href="#__codelineno-83-19"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-20" name="__codelineno-83-20" href="#__codelineno-83-20"></a>
|
||
<a id="__codelineno-83-21" name="__codelineno-83-21" href="#__codelineno-83-21"></a><span class="w"> </span><span class="cm">/* リスト容量を取得する */</span>
|
||
<a id="__codelineno-83-22" name="__codelineno-83-22" href="#__codelineno-83-22"></a><span class="w"> </span><span class="kd">func</span><span class="w"> </span><span class="nf">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="nb">Int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-23" name="__codelineno-83-23" href="#__codelineno-83-23"></a><span class="w"> </span><span class="n">_capacity</span>
|
||
<a id="__codelineno-83-24" name="__codelineno-83-24" href="#__codelineno-83-24"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-25" name="__codelineno-83-25" href="#__codelineno-83-25"></a>
|
||
<a id="__codelineno-83-26" name="__codelineno-83-26" href="#__codelineno-83-26"></a><span class="w"> </span><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-83-27" name="__codelineno-83-27" href="#__codelineno-83-27"></a><span class="w"> </span><span class="kd">func</span><span class="w"> </span><span class="nf">get</span><span class="p">(</span><span class="n">index</span><span class="p">:</span><span class="w"> </span><span class="nb">Int</span><span class="p">)</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="nb">Int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-28" name="__codelineno-83-28" href="#__codelineno-83-28"></a><span class="w"> </span><span class="c1">// インデックスが範囲外ならエラーを投げる。以下同様</span>
|
||
<a id="__codelineno-83-29" name="__codelineno-83-29" href="#__codelineno-83-29"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-30" name="__codelineno-83-30" href="#__codelineno-83-30"></a><span class="w"> </span><span class="bp">fatalError</span><span class="p">(</span><span class="s">"インデックスが範囲外"</span><span class="p">)</span>
|
||
<a id="__codelineno-83-31" name="__codelineno-83-31" href="#__codelineno-83-31"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-32" name="__codelineno-83-32" href="#__codelineno-83-32"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
|
||
<a id="__codelineno-83-33" name="__codelineno-83-33" href="#__codelineno-83-33"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-34" name="__codelineno-83-34" href="#__codelineno-83-34"></a>
|
||
<a id="__codelineno-83-35" name="__codelineno-83-35" href="#__codelineno-83-35"></a><span class="w"> </span><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-83-36" name="__codelineno-83-36" href="#__codelineno-83-36"></a><span class="w"> </span><span class="kd">func</span><span class="w"> </span><span class="nf">set</span><span class="p">(</span><span class="n">index</span><span class="p">:</span><span class="w"> </span><span class="nb">Int</span><span class="p">,</span><span class="w"> </span><span class="n">num</span><span class="p">:</span><span class="w"> </span><span class="nb">Int</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-37" name="__codelineno-83-37" href="#__codelineno-83-37"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-38" name="__codelineno-83-38" href="#__codelineno-83-38"></a><span class="w"> </span><span class="bp">fatalError</span><span class="p">(</span><span class="s">"インデックスが範囲外"</span><span class="p">)</span>
|
||
<a id="__codelineno-83-39" name="__codelineno-83-39" href="#__codelineno-83-39"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-40" name="__codelineno-83-40" href="#__codelineno-83-40"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="n">num</span>
|
||
<a id="__codelineno-83-41" name="__codelineno-83-41" href="#__codelineno-83-41"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-42" name="__codelineno-83-42" href="#__codelineno-83-42"></a>
|
||
<a id="__codelineno-83-43" name="__codelineno-83-43" href="#__codelineno-83-43"></a><span class="w"> </span><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-83-44" name="__codelineno-83-44" href="#__codelineno-83-44"></a><span class="w"> </span><span class="kd">func</span><span class="w"> </span><span class="nf">add</span><span class="p">(</span><span class="n">num</span><span class="p">:</span><span class="w"> </span><span class="nb">Int</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-45" name="__codelineno-83-45" href="#__codelineno-83-45"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-83-46" name="__codelineno-83-46" href="#__codelineno-83-46"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="p">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-47" name="__codelineno-83-47" href="#__codelineno-83-47"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">()</span>
|
||
<a id="__codelineno-83-48" name="__codelineno-83-48" href="#__codelineno-83-48"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-49" name="__codelineno-83-49" href="#__codelineno-83-49"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">size</span><span class="p">()]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="n">num</span>
|
||
<a id="__codelineno-83-50" name="__codelineno-83-50" href="#__codelineno-83-50"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-83-51" name="__codelineno-83-51" href="#__codelineno-83-51"></a><span class="w"> </span><span class="n">_size</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span>
|
||
<a id="__codelineno-83-52" name="__codelineno-83-52" href="#__codelineno-83-52"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-53" name="__codelineno-83-53" href="#__codelineno-83-53"></a>
|
||
<a id="__codelineno-83-54" name="__codelineno-83-54" href="#__codelineno-83-54"></a><span class="w"> </span><span class="cm">/* 中間に要素を挿入 */</span>
|
||
<a id="__codelineno-83-55" name="__codelineno-83-55" href="#__codelineno-83-55"></a><span class="w"> </span><span class="kd">func</span><span class="w"> </span><span class="nf">insert</span><span class="p">(</span><span class="n">index</span><span class="p">:</span><span class="w"> </span><span class="nb">Int</span><span class="p">,</span><span class="w"> </span><span class="n">num</span><span class="p">:</span><span class="w"> </span><span class="nb">Int</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-56" name="__codelineno-83-56" href="#__codelineno-83-56"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-57" name="__codelineno-83-57" href="#__codelineno-83-57"></a><span class="w"> </span><span class="bp">fatalError</span><span class="p">(</span><span class="s">"インデックスが範囲外"</span><span class="p">)</span>
|
||
<a id="__codelineno-83-58" name="__codelineno-83-58" href="#__codelineno-83-58"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-59" name="__codelineno-83-59" href="#__codelineno-83-59"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-83-60" name="__codelineno-83-60" href="#__codelineno-83-60"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="p">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-61" name="__codelineno-83-61" href="#__codelineno-83-61"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">()</span>
|
||
<a id="__codelineno-83-62" name="__codelineno-83-62" href="#__codelineno-83-62"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-63" name="__codelineno-83-63" href="#__codelineno-83-63"></a><span class="w"> </span><span class="c1">// index 以降の要素をすべて 1 つ後ろへずらす</span>
|
||
<a id="__codelineno-83-64" name="__codelineno-83-64" href="#__codelineno-83-64"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="p">..</span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">()).</span><span class="n">reversed</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-65" name="__codelineno-83-65" href="#__codelineno-83-65"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span>
|
||
<a id="__codelineno-83-66" name="__codelineno-83-66" href="#__codelineno-83-66"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-67" name="__codelineno-83-67" href="#__codelineno-83-67"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="n">num</span>
|
||
<a id="__codelineno-83-68" name="__codelineno-83-68" href="#__codelineno-83-68"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-83-69" name="__codelineno-83-69" href="#__codelineno-83-69"></a><span class="w"> </span><span class="n">_size</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span>
|
||
<a id="__codelineno-83-70" name="__codelineno-83-70" href="#__codelineno-83-70"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-71" name="__codelineno-83-71" href="#__codelineno-83-71"></a>
|
||
<a id="__codelineno-83-72" name="__codelineno-83-72" href="#__codelineno-83-72"></a><span class="w"> </span><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-83-73" name="__codelineno-83-73" href="#__codelineno-83-73"></a><span class="w"> </span><span class="p">@</span><span class="n">discardableResult</span>
|
||
<a id="__codelineno-83-74" name="__codelineno-83-74" href="#__codelineno-83-74"></a><span class="w"> </span><span class="kd">func</span><span class="w"> </span><span class="nf">remove</span><span class="p">(</span><span class="n">index</span><span class="p">:</span><span class="w"> </span><span class="nb">Int</span><span class="p">)</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="nb">Int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-75" name="__codelineno-83-75" href="#__codelineno-83-75"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-76" name="__codelineno-83-76" href="#__codelineno-83-76"></a><span class="w"> </span><span class="bp">fatalError</span><span class="p">(</span><span class="s">"インデックスが範囲外"</span><span class="p">)</span>
|
||
<a id="__codelineno-83-77" name="__codelineno-83-77" href="#__codelineno-83-77"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-78" name="__codelineno-83-78" href="#__codelineno-83-78"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nv">num</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
|
||
<a id="__codelineno-83-79" name="__codelineno-83-79" href="#__codelineno-83-79"></a><span class="w"> </span><span class="c1">// インデックス index より後の要素をすべて 1 つ前に移動する</span>
|
||
<a id="__codelineno-83-80" name="__codelineno-83-80" href="#__codelineno-83-80"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="p">..</span><span class="o"><</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-81" name="__codelineno-83-81" href="#__codelineno-83-81"></a><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">]</span>
|
||
<a id="__codelineno-83-82" name="__codelineno-83-82" href="#__codelineno-83-82"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-83" name="__codelineno-83-83" href="#__codelineno-83-83"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-83-84" name="__codelineno-83-84" href="#__codelineno-83-84"></a><span class="w"> </span><span class="n">_size</span><span class="w"> </span><span class="o">-=</span><span class="w"> </span><span class="mi">1</span>
|
||
<a id="__codelineno-83-85" name="__codelineno-83-85" href="#__codelineno-83-85"></a><span class="w"> </span><span class="c1">// 削除された要素を返す</span>
|
||
<a id="__codelineno-83-86" name="__codelineno-83-86" href="#__codelineno-83-86"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span>
|
||
<a id="__codelineno-83-87" name="__codelineno-83-87" href="#__codelineno-83-87"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-88" name="__codelineno-83-88" href="#__codelineno-83-88"></a>
|
||
<a id="__codelineno-83-89" name="__codelineno-83-89" href="#__codelineno-83-89"></a><span class="w"> </span><span class="cm">/* リストの拡張 */</span>
|
||
<a id="__codelineno-83-90" name="__codelineno-83-90" href="#__codelineno-83-90"></a><span class="w"> </span><span class="kd">func</span><span class="w"> </span><span class="nf">extendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-91" name="__codelineno-83-91" href="#__codelineno-83-91"></a><span class="w"> </span><span class="c1">// 元の配列の extendRatio 倍の長さを持つ新しい配列を作成し、元の配列をコピーする</span>
|
||
<a id="__codelineno-83-92" name="__codelineno-83-92" href="#__codelineno-83-92"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="n">repeating</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="bp">count</span><span class="p">:</span><span class="w"> </span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="p">(</span><span class="n">extendRatio</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">))</span>
|
||
<a id="__codelineno-83-93" name="__codelineno-83-93" href="#__codelineno-83-93"></a><span class="w"> </span><span class="c1">// リストの容量を更新</span>
|
||
<a id="__codelineno-83-94" name="__codelineno-83-94" href="#__codelineno-83-94"></a><span class="w"> </span><span class="n">_capacity</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="n">arr</span><span class="p">.</span><span class="bp">count</span>
|
||
<a id="__codelineno-83-95" name="__codelineno-83-95" href="#__codelineno-83-95"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-96" name="__codelineno-83-96" href="#__codelineno-83-96"></a>
|
||
<a id="__codelineno-83-97" name="__codelineno-83-97" href="#__codelineno-83-97"></a><span class="w"> </span><span class="cm">/* リストを配列に変換する */</span>
|
||
<a id="__codelineno-83-98" name="__codelineno-83-98" href="#__codelineno-83-98"></a><span class="w"> </span><span class="kd">func</span><span class="w"> </span><span class="nf">toArray</span><span class="p">()</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="p">[</span><span class="nb">Int</span><span class="p">]</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-83-99" name="__codelineno-83-99" href="#__codelineno-83-99"></a><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="n">arr</span><span class="p">.</span><span class="kr">prefix</span><span class="p">(</span><span class="n">size</span><span class="p">()))</span>
|
||
<a id="__codelineno-83-100" name="__codelineno-83-100" href="#__codelineno-83-100"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-83-101" name="__codelineno-83-101" href="#__codelineno-83-101"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.js</span><pre><span></span><code><a id="__codelineno-84-1" name="__codelineno-84-1" href="#__codelineno-84-1"></a><span class="cm">/* リストクラス */</span>
|
||
<a id="__codelineno-84-2" name="__codelineno-84-2" href="#__codelineno-84-2"></a><span class="kd">class</span><span class="w"> </span><span class="nx">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-84-3" name="__codelineno-84-3" href="#__codelineno-84-3"></a><span class="w"> </span><span class="n">#arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">();</span><span class="w"> </span><span class="c1">// 配列（リスト要素を格納）</span>
|
||
<a id="__codelineno-84-4" name="__codelineno-84-4" href="#__codelineno-84-4"></a><span class="w"> </span><span class="n">#capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// リスト容量</span>
|
||
<a id="__codelineno-84-5" name="__codelineno-84-5" href="#__codelineno-84-5"></a><span class="w"> </span><span class="n">#size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// リストの長さ（現在の要素数）</span>
|
||
<a id="__codelineno-84-6" name="__codelineno-84-6" href="#__codelineno-84-6"></a><span class="w"> </span><span class="n">#extendRatio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// リスト拡張時の増加倍率</span>
|
||
<a id="__codelineno-84-7" name="__codelineno-84-7" href="#__codelineno-84-7"></a>
|
||
<a id="__codelineno-84-8" name="__codelineno-84-8" href="#__codelineno-84-8"></a><span class="w"> </span><span class="cm">/* コンストラクタ */</span>
|
||
<a id="__codelineno-84-9" name="__codelineno-84-9" href="#__codelineno-84-9"></a><span class="w"> </span><span class="kr">constructor</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-84-10" name="__codelineno-84-10" href="#__codelineno-84-10"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="n">#capacity</span><span class="p">);</span>
|
||
<a id="__codelineno-84-11" name="__codelineno-84-11" href="#__codelineno-84-11"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-84-12" name="__codelineno-84-12" href="#__codelineno-84-12"></a>
|
||
<a id="__codelineno-84-13" name="__codelineno-84-13" href="#__codelineno-84-13"></a><span class="w"> </span><span class="cm">/* リストの長さを取得（現在の要素数） */</span>
|
||
<a id="__codelineno-84-14" name="__codelineno-84-14" href="#__codelineno-84-14"></a><span class="w"> </span><span class="nx">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-84-15" name="__codelineno-84-15" href="#__codelineno-84-15"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#size</span><span class="p">;</span>
|
||
<a id="__codelineno-84-16" name="__codelineno-84-16" href="#__codelineno-84-16"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-84-17" name="__codelineno-84-17" href="#__codelineno-84-17"></a>
|
||
<a id="__codelineno-84-18" name="__codelineno-84-18" href="#__codelineno-84-18"></a><span class="w"> </span><span class="cm">/* リスト容量を取得する */</span>
|
||
<a id="__codelineno-84-19" name="__codelineno-84-19" href="#__codelineno-84-19"></a><span class="w"> </span><span class="nx">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-84-20" name="__codelineno-84-20" href="#__codelineno-84-20"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#capacity</span><span class="p">;</span>
|
||
<a id="__codelineno-84-21" name="__codelineno-84-21" href="#__codelineno-84-21"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-84-22" name="__codelineno-84-22" href="#__codelineno-84-22"></a>
|
||
<a id="__codelineno-84-23" name="__codelineno-84-23" href="#__codelineno-84-23"></a><span class="w"> </span><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-84-24" name="__codelineno-84-24" href="#__codelineno-84-24"></a><span class="w"> </span><span class="nx">get</span><span class="p">(</span><span class="nx">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-84-25" name="__codelineno-84-25" href="#__codelineno-84-25"></a><span class="w"> </span><span class="c1">// インデックスが範囲外なら例外を送出する。以下同様</span>
|
||
<a id="__codelineno-84-26" name="__codelineno-84-26" href="#__codelineno-84-26"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'インデックスが範囲外です'</span><span class="p">);</span>
|
||
<a id="__codelineno-84-27" name="__codelineno-84-27" href="#__codelineno-84-27"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#arr</span><span class="p">[</span><span class="nx">index</span><span class="p">];</span>
|
||
<a id="__codelineno-84-28" name="__codelineno-84-28" href="#__codelineno-84-28"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-84-29" name="__codelineno-84-29" href="#__codelineno-84-29"></a>
|
||
<a id="__codelineno-84-30" name="__codelineno-84-30" href="#__codelineno-84-30"></a><span class="w"> </span><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-84-31" name="__codelineno-84-31" href="#__codelineno-84-31"></a><span class="w"> </span><span class="nx">set</span><span class="p">(</span><span class="nx">index</span><span class="p">,</span><span class="w"> </span><span class="nx">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-84-32" name="__codelineno-84-32" href="#__codelineno-84-32"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'インデックスが範囲外です'</span><span class="p">);</span>
|
||
<a id="__codelineno-84-33" name="__codelineno-84-33" href="#__codelineno-84-33"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#arr</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-84-34" name="__codelineno-84-34" href="#__codelineno-84-34"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-84-35" name="__codelineno-84-35" href="#__codelineno-84-35"></a>
|
||
<a id="__codelineno-84-36" name="__codelineno-84-36" href="#__codelineno-84-36"></a><span class="w"> </span><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-84-37" name="__codelineno-84-37" href="#__codelineno-84-37"></a><span class="w"> </span><span class="nx">add</span><span class="p">(</span><span class="nx">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-84-38" name="__codelineno-84-38" href="#__codelineno-84-38"></a><span class="w"> </span><span class="c1">// 長さが容量に等しい場合は拡張が必要</span>
|
||
<a id="__codelineno-84-39" name="__codelineno-84-39" href="#__codelineno-84-39"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="n">#size</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#capacity</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-84-40" name="__codelineno-84-40" href="#__codelineno-84-40"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-84-41" name="__codelineno-84-41" href="#__codelineno-84-41"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-84-42" name="__codelineno-84-42" href="#__codelineno-84-42"></a><span class="w"> </span><span class="c1">// 新しい要素をリストの末尾に追加する</span>
|
||
<a id="__codelineno-84-43" name="__codelineno-84-43" href="#__codelineno-84-43"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#arr</span><span class="p">[</span><span class="k">this</span><span class="p">.</span><span class="n">#size</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-84-44" name="__codelineno-84-44" href="#__codelineno-84-44"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-84-45" name="__codelineno-84-45" href="#__codelineno-84-45"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-84-46" name="__codelineno-84-46" href="#__codelineno-84-46"></a>
|
||
<a id="__codelineno-84-47" name="__codelineno-84-47" href="#__codelineno-84-47"></a><span class="w"> </span><span class="cm">/* 中間に要素を挿入 */</span>
|
||
<a id="__codelineno-84-48" name="__codelineno-84-48" href="#__codelineno-84-48"></a><span class="w"> </span><span class="nx">insert</span><span class="p">(</span><span class="nx">index</span><span class="p">,</span><span class="w"> </span><span class="nx">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-84-49" name="__codelineno-84-49" href="#__codelineno-84-49"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'インデックスが範囲外です'</span><span class="p">);</span>
|
||
<a id="__codelineno-84-50" name="__codelineno-84-50" href="#__codelineno-84-50"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-84-51" name="__codelineno-84-51" href="#__codelineno-84-51"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="n">#size</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#capacity</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-84-52" name="__codelineno-84-52" href="#__codelineno-84-52"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-84-53" name="__codelineno-84-53" href="#__codelineno-84-53"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-84-54" name="__codelineno-84-54" href="#__codelineno-84-54"></a><span class="w"> </span><span class="c1">// index 以降の要素をすべて 1 つ後ろへずらす</span>
|
||
<a id="__codelineno-84-55" name="__codelineno-84-55" href="#__codelineno-84-55"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">--</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-84-56" name="__codelineno-84-56" href="#__codelineno-84-56"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#arr</span><span class="p">[</span><span class="nx">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#arr</span><span class="p">[</span><span class="nx">j</span><span class="p">];</span>
|
||
<a id="__codelineno-84-57" name="__codelineno-84-57" href="#__codelineno-84-57"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-84-58" name="__codelineno-84-58" href="#__codelineno-84-58"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-84-59" name="__codelineno-84-59" href="#__codelineno-84-59"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#arr</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-84-60" name="__codelineno-84-60" href="#__codelineno-84-60"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-84-61" name="__codelineno-84-61" href="#__codelineno-84-61"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-84-62" name="__codelineno-84-62" href="#__codelineno-84-62"></a>
|
||
<a id="__codelineno-84-63" name="__codelineno-84-63" href="#__codelineno-84-63"></a><span class="w"> </span><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-84-64" name="__codelineno-84-64" href="#__codelineno-84-64"></a><span class="w"> </span><span class="nx">remove</span><span class="p">(</span><span class="nx">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-84-65" name="__codelineno-84-65" href="#__codelineno-84-65"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'インデックスが範囲外です'</span><span class="p">);</span>
|
||
<a id="__codelineno-84-66" name="__codelineno-84-66" href="#__codelineno-84-66"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#arr</span><span class="p">[</span><span class="nx">index</span><span class="p">];</span>
|
||
<a id="__codelineno-84-67" name="__codelineno-84-67" href="#__codelineno-84-67"></a><span class="w"> </span><span class="c1">// インデックス index より後の要素をすべて 1 つ前に移動する</span>
|
||
<a id="__codelineno-84-68" name="__codelineno-84-68" href="#__codelineno-84-68"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-84-69" name="__codelineno-84-69" href="#__codelineno-84-69"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#arr</span><span class="p">[</span><span class="nx">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#arr</span><span class="p">[</span><span class="nx">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1</span><span class="p">];</span>
|
||
<a id="__codelineno-84-70" name="__codelineno-84-70" href="#__codelineno-84-70"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-84-71" name="__codelineno-84-71" href="#__codelineno-84-71"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-84-72" name="__codelineno-84-72" href="#__codelineno-84-72"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#size</span><span class="o">--</span><span class="p">;</span>
|
||
<a id="__codelineno-84-73" name="__codelineno-84-73" href="#__codelineno-84-73"></a><span class="w"> </span><span class="c1">// 削除された要素を返す</span>
|
||
<a id="__codelineno-84-74" name="__codelineno-84-74" href="#__codelineno-84-74"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-84-75" name="__codelineno-84-75" href="#__codelineno-84-75"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-84-76" name="__codelineno-84-76" href="#__codelineno-84-76"></a>
|
||
<a id="__codelineno-84-77" name="__codelineno-84-77" href="#__codelineno-84-77"></a><span class="w"> </span><span class="cm">/* リストの拡張 */</span>
|
||
<a id="__codelineno-84-78" name="__codelineno-84-78" href="#__codelineno-84-78"></a><span class="w"> </span><span class="nx">extendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-84-79" name="__codelineno-84-79" href="#__codelineno-84-79"></a><span class="w"> </span><span class="c1">// 元の配列の extendRatio 倍の長さを持つ新しい配列を作成し、元の配列をコピーする</span>
|
||
<a id="__codelineno-84-80" name="__codelineno-84-80" href="#__codelineno-84-80"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#arr</span><span class="p">.</span><span class="nx">concat</span><span class="p">(</span>
|
||
<a id="__codelineno-84-81" name="__codelineno-84-81" href="#__codelineno-84-81"></a><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="n">#extendRatio</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">))</span>
|
||
<a id="__codelineno-84-82" name="__codelineno-84-82" href="#__codelineno-84-82"></a><span class="w"> </span><span class="p">);</span>
|
||
<a id="__codelineno-84-83" name="__codelineno-84-83" href="#__codelineno-84-83"></a><span class="w"> </span><span class="c1">// リストの容量を更新</span>
|
||
<a id="__codelineno-84-84" name="__codelineno-84-84" href="#__codelineno-84-84"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="n">#arr</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span>
|
||
<a id="__codelineno-84-85" name="__codelineno-84-85" href="#__codelineno-84-85"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-84-86" name="__codelineno-84-86" href="#__codelineno-84-86"></a>
|
||
<a id="__codelineno-84-87" name="__codelineno-84-87" href="#__codelineno-84-87"></a><span class="w"> </span><span class="cm">/* リストを配列に変換する */</span>
|
||
<a id="__codelineno-84-88" name="__codelineno-84-88" href="#__codelineno-84-88"></a><span class="w"> </span><span class="nx">toArray</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-84-89" name="__codelineno-84-89" href="#__codelineno-84-89"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">size</span><span class="p">();</span>
|
||
<a id="__codelineno-84-90" name="__codelineno-84-90" href="#__codelineno-84-90"></a><span class="w"> </span><span class="c1">// 有効長の範囲内のリスト要素のみを変換</span>
|
||
<a id="__codelineno-84-91" name="__codelineno-84-91" href="#__codelineno-84-91"></a><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="nx">size</span><span class="p">);</span>
|
||
<a id="__codelineno-84-92" name="__codelineno-84-92" href="#__codelineno-84-92"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="nx">size</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-84-93" name="__codelineno-84-93" href="#__codelineno-84-93"></a><span class="w"> </span><span class="nx">arr</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="nx">i</span><span class="p">);</span>
|
||
<a id="__codelineno-84-94" name="__codelineno-84-94" href="#__codelineno-84-94"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-84-95" name="__codelineno-84-95" href="#__codelineno-84-95"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-84-96" name="__codelineno-84-96" href="#__codelineno-84-96"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-84-97" name="__codelineno-84-97" href="#__codelineno-84-97"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.ts</span><pre><span></span><code><a id="__codelineno-85-1" name="__codelineno-85-1" href="#__codelineno-85-1"></a><span class="cm">/* リストクラス */</span>
|
||
<a id="__codelineno-85-2" name="__codelineno-85-2" href="#__codelineno-85-2"></a><span class="kd">class</span><span class="w"> </span><span class="nx">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-85-3" name="__codelineno-85-3" href="#__codelineno-85-3"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="nx">arr</span><span class="o">:</span><span class="w"> </span><span class="kt">Array</span><span class="o"><</span><span class="kt">number</span><span class="o">></span><span class="p">;</span><span class="w"> </span><span class="c1">// 配列（リスト要素を格納）</span>
|
||
<a id="__codelineno-85-4" name="__codelineno-85-4" href="#__codelineno-85-4"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="nx">_capacity</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// リスト容量</span>
|
||
<a id="__codelineno-85-5" name="__codelineno-85-5" href="#__codelineno-85-5"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="nx">_size</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// リストの長さ（現在の要素数）</span>
|
||
<a id="__codelineno-85-6" name="__codelineno-85-6" href="#__codelineno-85-6"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="nx">extendRatio</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// リスト拡張時の増加倍率</span>
|
||
<a id="__codelineno-85-7" name="__codelineno-85-7" href="#__codelineno-85-7"></a>
|
||
<a id="__codelineno-85-8" name="__codelineno-85-8" href="#__codelineno-85-8"></a><span class="w"> </span><span class="cm">/* コンストラクタ */</span>
|
||
<a id="__codelineno-85-9" name="__codelineno-85-9" href="#__codelineno-85-9"></a><span class="w"> </span><span class="kr">constructor</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-85-10" name="__codelineno-85-10" href="#__codelineno-85-10"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">_capacity</span><span class="p">);</span>
|
||
<a id="__codelineno-85-11" name="__codelineno-85-11" href="#__codelineno-85-11"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-85-12" name="__codelineno-85-12" href="#__codelineno-85-12"></a>
|
||
<a id="__codelineno-85-13" name="__codelineno-85-13" href="#__codelineno-85-13"></a><span class="w"> </span><span class="cm">/* リストの長さを取得（現在の要素数） */</span>
|
||
<a id="__codelineno-85-14" name="__codelineno-85-14" href="#__codelineno-85-14"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">size</span><span class="p">()</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-85-15" name="__codelineno-85-15" href="#__codelineno-85-15"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">;</span>
|
||
<a id="__codelineno-85-16" name="__codelineno-85-16" href="#__codelineno-85-16"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-85-17" name="__codelineno-85-17" href="#__codelineno-85-17"></a>
|
||
<a id="__codelineno-85-18" name="__codelineno-85-18" href="#__codelineno-85-18"></a><span class="w"> </span><span class="cm">/* リスト容量を取得する */</span>
|
||
<a id="__codelineno-85-19" name="__codelineno-85-19" href="#__codelineno-85-19"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">capacity</span><span class="p">()</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-85-20" name="__codelineno-85-20" href="#__codelineno-85-20"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_capacity</span><span class="p">;</span>
|
||
<a id="__codelineno-85-21" name="__codelineno-85-21" href="#__codelineno-85-21"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-85-22" name="__codelineno-85-22" href="#__codelineno-85-22"></a>
|
||
<a id="__codelineno-85-23" name="__codelineno-85-23" href="#__codelineno-85-23"></a><span class="w"> </span><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-85-24" name="__codelineno-85-24" href="#__codelineno-85-24"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">get</span><span class="p">(</span><span class="nx">index</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-85-25" name="__codelineno-85-25" href="#__codelineno-85-25"></a><span class="w"> </span><span class="c1">// インデックスが範囲外なら例外を送出する。以下同様</span>
|
||
<a id="__codelineno-85-26" name="__codelineno-85-26" href="#__codelineno-85-26"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'インデックスが範囲外です'</span><span class="p">);</span>
|
||
<a id="__codelineno-85-27" name="__codelineno-85-27" href="#__codelineno-85-27"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">];</span>
|
||
<a id="__codelineno-85-28" name="__codelineno-85-28" href="#__codelineno-85-28"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-85-29" name="__codelineno-85-29" href="#__codelineno-85-29"></a>
|
||
<a id="__codelineno-85-30" name="__codelineno-85-30" href="#__codelineno-85-30"></a><span class="w"> </span><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-85-31" name="__codelineno-85-31" href="#__codelineno-85-31"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">set</span><span class="p">(</span><span class="nx">index</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">,</span><span class="w"> </span><span class="nx">num</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="ow">void</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-85-32" name="__codelineno-85-32" href="#__codelineno-85-32"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'インデックスが範囲外です'</span><span class="p">);</span>
|
||
<a id="__codelineno-85-33" name="__codelineno-85-33" href="#__codelineno-85-33"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-85-34" name="__codelineno-85-34" href="#__codelineno-85-34"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-85-35" name="__codelineno-85-35" href="#__codelineno-85-35"></a>
|
||
<a id="__codelineno-85-36" name="__codelineno-85-36" href="#__codelineno-85-36"></a><span class="w"> </span><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-85-37" name="__codelineno-85-37" href="#__codelineno-85-37"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">add</span><span class="p">(</span><span class="nx">num</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="ow">void</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-85-38" name="__codelineno-85-38" href="#__codelineno-85-38"></a><span class="w"> </span><span class="c1">// 長さが容量に等しい場合は拡張が必要</span>
|
||
<a id="__codelineno-85-39" name="__codelineno-85-39" href="#__codelineno-85-39"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_capacity</span><span class="p">)</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-85-40" name="__codelineno-85-40" href="#__codelineno-85-40"></a><span class="w"> </span><span class="c1">// 新しい要素をリストの末尾に追加する</span>
|
||
<a id="__codelineno-85-41" name="__codelineno-85-41" href="#__codelineno-85-41"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-85-42" name="__codelineno-85-42" href="#__codelineno-85-42"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-85-43" name="__codelineno-85-43" href="#__codelineno-85-43"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-85-44" name="__codelineno-85-44" href="#__codelineno-85-44"></a>
|
||
<a id="__codelineno-85-45" name="__codelineno-85-45" href="#__codelineno-85-45"></a><span class="w"> </span><span class="cm">/* 中間に要素を挿入 */</span>
|
||
<a id="__codelineno-85-46" name="__codelineno-85-46" href="#__codelineno-85-46"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">insert</span><span class="p">(</span><span class="nx">index</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">,</span><span class="w"> </span><span class="nx">num</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="ow">void</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-85-47" name="__codelineno-85-47" href="#__codelineno-85-47"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'インデックスが範囲外です'</span><span class="p">);</span>
|
||
<a id="__codelineno-85-48" name="__codelineno-85-48" href="#__codelineno-85-48"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-85-49" name="__codelineno-85-49" href="#__codelineno-85-49"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_capacity</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-85-50" name="__codelineno-85-50" href="#__codelineno-85-50"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-85-51" name="__codelineno-85-51" href="#__codelineno-85-51"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-85-52" name="__codelineno-85-52" href="#__codelineno-85-52"></a><span class="w"> </span><span class="c1">// index 以降の要素をすべて 1 つ後ろへずらす</span>
|
||
<a id="__codelineno-85-53" name="__codelineno-85-53" href="#__codelineno-85-53"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">--</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-85-54" name="__codelineno-85-54" href="#__codelineno-85-54"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="p">];</span>
|
||
<a id="__codelineno-85-55" name="__codelineno-85-55" href="#__codelineno-85-55"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-85-56" name="__codelineno-85-56" href="#__codelineno-85-56"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-85-57" name="__codelineno-85-57" href="#__codelineno-85-57"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-85-58" name="__codelineno-85-58" href="#__codelineno-85-58"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-85-59" name="__codelineno-85-59" href="#__codelineno-85-59"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-85-60" name="__codelineno-85-60" href="#__codelineno-85-60"></a>
|
||
<a id="__codelineno-85-61" name="__codelineno-85-61" href="#__codelineno-85-61"></a><span class="w"> </span><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-85-62" name="__codelineno-85-62" href="#__codelineno-85-62"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">remove</span><span class="p">(</span><span class="nx">index</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-85-63" name="__codelineno-85-63" href="#__codelineno-85-63"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'インデックスが範囲外です'</span><span class="p">);</span>
|
||
<a id="__codelineno-85-64" name="__codelineno-85-64" href="#__codelineno-85-64"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">index</span><span class="p">];</span>
|
||
<a id="__codelineno-85-65" name="__codelineno-85-65" href="#__codelineno-85-65"></a><span class="w"> </span><span class="c1">// インデックス index より後の要素をすべて 1 つ前に移動する</span>
|
||
<a id="__codelineno-85-66" name="__codelineno-85-66" href="#__codelineno-85-66"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-85-67" name="__codelineno-85-67" href="#__codelineno-85-67"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">[</span><span class="nx">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1</span><span class="p">];</span>
|
||
<a id="__codelineno-85-68" name="__codelineno-85-68" href="#__codelineno-85-68"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-85-69" name="__codelineno-85-69" href="#__codelineno-85-69"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-85-70" name="__codelineno-85-70" href="#__codelineno-85-70"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="o">--</span><span class="p">;</span>
|
||
<a id="__codelineno-85-71" name="__codelineno-85-71" href="#__codelineno-85-71"></a><span class="w"> </span><span class="c1">// 削除された要素を返す</span>
|
||
<a id="__codelineno-85-72" name="__codelineno-85-72" href="#__codelineno-85-72"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
||
<a id="__codelineno-85-73" name="__codelineno-85-73" href="#__codelineno-85-73"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-85-74" name="__codelineno-85-74" href="#__codelineno-85-74"></a>
|
||
<a id="__codelineno-85-75" name="__codelineno-85-75" href="#__codelineno-85-75"></a><span class="w"> </span><span class="cm">/* リストの拡張 */</span>
|
||
<a id="__codelineno-85-76" name="__codelineno-85-76" href="#__codelineno-85-76"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">extendCapacity</span><span class="p">()</span><span class="o">:</span><span class="w"> </span><span class="ow">void</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-85-77" name="__codelineno-85-77" href="#__codelineno-85-77"></a><span class="w"> </span><span class="c1">// `size` の長さを持つ配列を新規作成し、元の配列を新しい配列にコピーする</span>
|
||
<a id="__codelineno-85-78" name="__codelineno-85-78" href="#__codelineno-85-78"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">.</span><span class="nx">concat</span><span class="p">(</span>
|
||
<a id="__codelineno-85-79" name="__codelineno-85-79" href="#__codelineno-85-79"></a><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">extendRatio</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">))</span>
|
||
<a id="__codelineno-85-80" name="__codelineno-85-80" href="#__codelineno-85-80"></a><span class="w"> </span><span class="p">);</span>
|
||
<a id="__codelineno-85-81" name="__codelineno-85-81" href="#__codelineno-85-81"></a><span class="w"> </span><span class="c1">// リストの容量を更新</span>
|
||
<a id="__codelineno-85-82" name="__codelineno-85-82" href="#__codelineno-85-82"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">arr</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span>
|
||
<a id="__codelineno-85-83" name="__codelineno-85-83" href="#__codelineno-85-83"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-85-84" name="__codelineno-85-84" href="#__codelineno-85-84"></a>
|
||
<a id="__codelineno-85-85" name="__codelineno-85-85" href="#__codelineno-85-85"></a><span class="w"> </span><span class="cm">/* リストを配列に変換する */</span>
|
||
<a id="__codelineno-85-86" name="__codelineno-85-86" href="#__codelineno-85-86"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">toArray</span><span class="p">()</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">[]</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-85-87" name="__codelineno-85-87" href="#__codelineno-85-87"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">size</span><span class="p">();</span>
|
||
<a id="__codelineno-85-88" name="__codelineno-85-88" href="#__codelineno-85-88"></a><span class="w"> </span><span class="c1">// 有効長の範囲内のリスト要素のみを変換</span>
|
||
<a id="__codelineno-85-89" name="__codelineno-85-89" href="#__codelineno-85-89"></a><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="nx">size</span><span class="p">);</span>
|
||
<a id="__codelineno-85-90" name="__codelineno-85-90" href="#__codelineno-85-90"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="nx">size</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-85-91" name="__codelineno-85-91" href="#__codelineno-85-91"></a><span class="w"> </span><span class="nx">arr</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="nx">i</span><span class="p">);</span>
|
||
<a id="__codelineno-85-92" name="__codelineno-85-92" href="#__codelineno-85-92"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-85-93" name="__codelineno-85-93" href="#__codelineno-85-93"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-85-94" name="__codelineno-85-94" href="#__codelineno-85-94"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-85-95" name="__codelineno-85-95" href="#__codelineno-85-95"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.dart</span><pre><span></span><code><a id="__codelineno-86-1" name="__codelineno-86-1" href="#__codelineno-86-1"></a><span class="cm">/* リストクラス */</span>
|
||
<a id="__codelineno-86-2" name="__codelineno-86-2" href="#__codelineno-86-2"></a><span class="kd">class</span><span class="w"> </span><span class="nc">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-86-3" name="__codelineno-86-3" href="#__codelineno-86-3"></a><span class="w"> </span><span class="kd">late</span><span class="w"> </span><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">_arr</span><span class="p">;</span><span class="w"> </span><span class="c1">// 配列（リスト要素を格納）</span>
|
||
<a id="__codelineno-86-4" name="__codelineno-86-4" href="#__codelineno-86-4"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">_capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// リスト容量</span>
|
||
<a id="__codelineno-86-5" name="__codelineno-86-5" href="#__codelineno-86-5"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">_size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// リストの長さ（現在の要素数）</span>
|
||
<a id="__codelineno-86-6" name="__codelineno-86-6" href="#__codelineno-86-6"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">_extendRatio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// リスト拡張時の増加倍率</span>
|
||
<a id="__codelineno-86-7" name="__codelineno-86-7" href="#__codelineno-86-7"></a>
|
||
<a id="__codelineno-86-8" name="__codelineno-86-8" href="#__codelineno-86-8"></a><span class="w"> </span><span class="cm">/* コンストラクタ */</span>
|
||
<a id="__codelineno-86-9" name="__codelineno-86-9" href="#__codelineno-86-9"></a><span class="w"> </span><span class="n">MyList</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-86-10" name="__codelineno-86-10" href="#__codelineno-86-10"></a><span class="w"> </span><span class="n">_arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">List</span><span class="p">.</span><span class="n">filled</span><span class="p">(</span><span class="n">_capacity</span><span class="p">,</span><span class="w"> </span><span class="m">0</span><span class="p">);</span>
|
||
<a id="__codelineno-86-11" name="__codelineno-86-11" href="#__codelineno-86-11"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-86-12" name="__codelineno-86-12" href="#__codelineno-86-12"></a>
|
||
<a id="__codelineno-86-13" name="__codelineno-86-13" href="#__codelineno-86-13"></a><span class="w"> </span><span class="cm">/* リストの長さを取得（現在の要素数） */</span>
|
||
<a id="__codelineno-86-14" name="__codelineno-86-14" href="#__codelineno-86-14"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">=></span><span class="w"> </span><span class="n">_size</span><span class="p">;</span>
|
||
<a id="__codelineno-86-15" name="__codelineno-86-15" href="#__codelineno-86-15"></a>
|
||
<a id="__codelineno-86-16" name="__codelineno-86-16" href="#__codelineno-86-16"></a><span class="w"> </span><span class="cm">/* リスト容量を取得する */</span>
|
||
<a id="__codelineno-86-17" name="__codelineno-86-17" href="#__codelineno-86-17"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">=></span><span class="w"> </span><span class="n">_capacity</span><span class="p">;</span>
|
||
<a id="__codelineno-86-18" name="__codelineno-86-18" href="#__codelineno-86-18"></a>
|
||
<a id="__codelineno-86-19" name="__codelineno-86-19" href="#__codelineno-86-19"></a><span class="w"> </span><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-86-20" name="__codelineno-86-20" href="#__codelineno-86-20"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="kd">get</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-86-21" name="__codelineno-86-21" href="#__codelineno-86-21"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">_size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">RangeError</span><span class="p">(</span><span class="s1">'インデックスが範囲外です'</span><span class="p">);</span>
|
||
<a id="__codelineno-86-22" name="__codelineno-86-22" href="#__codelineno-86-22"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-86-23" name="__codelineno-86-23" href="#__codelineno-86-23"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-86-24" name="__codelineno-86-24" href="#__codelineno-86-24"></a>
|
||
<a id="__codelineno-86-25" name="__codelineno-86-25" href="#__codelineno-86-25"></a><span class="w"> </span><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-86-26" name="__codelineno-86-26" href="#__codelineno-86-26"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="kd">set</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">_num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-86-27" name="__codelineno-86-27" href="#__codelineno-86-27"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">_size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">RangeError</span><span class="p">(</span><span class="s1">'インデックスが範囲外です'</span><span class="p">);</span>
|
||
<a id="__codelineno-86-28" name="__codelineno-86-28" href="#__codelineno-86-28"></a><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_num</span><span class="p">;</span>
|
||
<a id="__codelineno-86-29" name="__codelineno-86-29" href="#__codelineno-86-29"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-86-30" name="__codelineno-86-30" href="#__codelineno-86-30"></a>
|
||
<a id="__codelineno-86-31" name="__codelineno-86-31" href="#__codelineno-86-31"></a><span class="w"> </span><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-86-32" name="__codelineno-86-32" href="#__codelineno-86-32"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">add</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">_num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-86-33" name="__codelineno-86-33" href="#__codelineno-86-33"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-86-34" name="__codelineno-86-34" href="#__codelineno-86-34"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">_size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">_capacity</span><span class="p">)</span><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-86-35" name="__codelineno-86-35" href="#__codelineno-86-35"></a><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">_size</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_num</span><span class="p">;</span>
|
||
<a id="__codelineno-86-36" name="__codelineno-86-36" href="#__codelineno-86-36"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-86-37" name="__codelineno-86-37" href="#__codelineno-86-37"></a><span class="w"> </span><span class="n">_size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-86-38" name="__codelineno-86-38" href="#__codelineno-86-38"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-86-39" name="__codelineno-86-39" href="#__codelineno-86-39"></a>
|
||
<a id="__codelineno-86-40" name="__codelineno-86-40" href="#__codelineno-86-40"></a><span class="w"> </span><span class="cm">/* 中間に要素を挿入 */</span>
|
||
<a id="__codelineno-86-41" name="__codelineno-86-41" href="#__codelineno-86-41"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">insert</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">_num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-86-42" name="__codelineno-86-42" href="#__codelineno-86-42"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">_size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">RangeError</span><span class="p">(</span><span class="s1">'インデックスが範囲外です'</span><span class="p">);</span>
|
||
<a id="__codelineno-86-43" name="__codelineno-86-43" href="#__codelineno-86-43"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-86-44" name="__codelineno-86-44" href="#__codelineno-86-44"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">_size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">_capacity</span><span class="p">)</span><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
|
||
<a id="__codelineno-86-45" name="__codelineno-86-45" href="#__codelineno-86-45"></a><span class="w"> </span><span class="c1">// index 以降の要素をすべて 1 つ後ろへずらす</span>
|
||
<a id="__codelineno-86-46" name="__codelineno-86-46" href="#__codelineno-86-46"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">var</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="m">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">--</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-86-47" name="__codelineno-86-47" href="#__codelineno-86-47"></a><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="m">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">j</span><span class="p">];</span>
|
||
<a id="__codelineno-86-48" name="__codelineno-86-48" href="#__codelineno-86-48"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-86-49" name="__codelineno-86-49" href="#__codelineno-86-49"></a><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_num</span><span class="p">;</span>
|
||
<a id="__codelineno-86-50" name="__codelineno-86-50" href="#__codelineno-86-50"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-86-51" name="__codelineno-86-51" href="#__codelineno-86-51"></a><span class="w"> </span><span class="n">_size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-86-52" name="__codelineno-86-52" href="#__codelineno-86-52"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-86-53" name="__codelineno-86-53" href="#__codelineno-86-53"></a>
|
||
<a id="__codelineno-86-54" name="__codelineno-86-54" href="#__codelineno-86-54"></a><span class="w"> </span><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-86-55" name="__codelineno-86-55" href="#__codelineno-86-55"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">remove</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-86-56" name="__codelineno-86-56" href="#__codelineno-86-56"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">_size</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">RangeError</span><span class="p">(</span><span class="s1">'インデックスが範囲外です'</span><span class="p">);</span>
|
||
<a id="__codelineno-86-57" name="__codelineno-86-57" href="#__codelineno-86-57"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">_num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-86-58" name="__codelineno-86-58" href="#__codelineno-86-58"></a><span class="w"> </span><span class="c1">// インデックス index より後の要素をすべて 1 つ前に移動する</span>
|
||
<a id="__codelineno-86-59" name="__codelineno-86-59" href="#__codelineno-86-59"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">var</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">_size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="m">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-86-60" name="__codelineno-86-60" href="#__codelineno-86-60"></a><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="m">1</span><span class="p">];</span>
|
||
<a id="__codelineno-86-61" name="__codelineno-86-61" href="#__codelineno-86-61"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-86-62" name="__codelineno-86-62" href="#__codelineno-86-62"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-86-63" name="__codelineno-86-63" href="#__codelineno-86-63"></a><span class="w"> </span><span class="n">_size</span><span class="o">--</span><span class="p">;</span>
|
||
<a id="__codelineno-86-64" name="__codelineno-86-64" href="#__codelineno-86-64"></a><span class="w"> </span><span class="c1">// 削除された要素を返す</span>
|
||
<a id="__codelineno-86-65" name="__codelineno-86-65" href="#__codelineno-86-65"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">_num</span><span class="p">;</span>
|
||
<a id="__codelineno-86-66" name="__codelineno-86-66" href="#__codelineno-86-66"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-86-67" name="__codelineno-86-67" href="#__codelineno-86-67"></a>
|
||
<a id="__codelineno-86-68" name="__codelineno-86-68" href="#__codelineno-86-68"></a><span class="w"> </span><span class="cm">/* リストの拡張 */</span>
|
||
<a id="__codelineno-86-69" name="__codelineno-86-69" href="#__codelineno-86-69"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">extendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-86-70" name="__codelineno-86-70" href="#__codelineno-86-70"></a><span class="w"> </span><span class="c1">// 元の配列の `_extendRatio` 倍の長さを持つ新しい配列を作成する</span>
|
||
<a id="__codelineno-86-71" name="__codelineno-86-71" href="#__codelineno-86-71"></a><span class="w"> </span><span class="kd">final</span><span class="w"> </span><span class="n">_newNums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">List</span><span class="p">.</span><span class="n">filled</span><span class="p">(</span><span class="n">_capacity</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">_extendRatio</span><span class="p">,</span><span class="w"> </span><span class="m">0</span><span class="p">);</span>
|
||
<a id="__codelineno-86-72" name="__codelineno-86-72" href="#__codelineno-86-72"></a><span class="w"> </span><span class="c1">// 元の配列を新しい配列にコピー</span>
|
||
<a id="__codelineno-86-73" name="__codelineno-86-73" href="#__codelineno-86-73"></a><span class="w"> </span><span class="n">List</span><span class="p">.</span><span class="n">copyRange</span><span class="p">(</span><span class="n">_newNums</span><span class="p">,</span><span class="w"> </span><span class="m">0</span><span class="p">,</span><span class="w"> </span><span class="n">_arr</span><span class="p">);</span>
|
||
<a id="__codelineno-86-74" name="__codelineno-86-74" href="#__codelineno-86-74"></a><span class="w"> </span><span class="c1">// `_arr` の参照を更新</span>
|
||
<a id="__codelineno-86-75" name="__codelineno-86-75" href="#__codelineno-86-75"></a><span class="w"> </span><span class="n">_arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_newNums</span><span class="p">;</span>
|
||
<a id="__codelineno-86-76" name="__codelineno-86-76" href="#__codelineno-86-76"></a><span class="w"> </span><span class="c1">// リストの容量を更新</span>
|
||
<a id="__codelineno-86-77" name="__codelineno-86-77" href="#__codelineno-86-77"></a><span class="w"> </span><span class="n">_capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">_arr</span><span class="p">.</span><span class="n">length</span><span class="p">;</span>
|
||
<a id="__codelineno-86-78" name="__codelineno-86-78" href="#__codelineno-86-78"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-86-79" name="__codelineno-86-79" href="#__codelineno-86-79"></a>
|
||
<a id="__codelineno-86-80" name="__codelineno-86-80" href="#__codelineno-86-80"></a><span class="w"> </span><span class="cm">/* リストを配列に変換する */</span>
|
||
<a id="__codelineno-86-81" name="__codelineno-86-81" href="#__codelineno-86-81"></a><span class="w"> </span><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">toArray</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-86-82" name="__codelineno-86-82" href="#__codelineno-86-82"></a><span class="w"> </span><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[];</span>
|
||
<a id="__codelineno-86-83" name="__codelineno-86-83" href="#__codelineno-86-83"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">var</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">_size</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-86-84" name="__codelineno-86-84" href="#__codelineno-86-84"></a><span class="w"> </span><span class="n">arr</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="kd">get</span><span class="p">(</span><span class="n">i</span><span class="p">));</span>
|
||
<a id="__codelineno-86-85" name="__codelineno-86-85" href="#__codelineno-86-85"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-86-86" name="__codelineno-86-86" href="#__codelineno-86-86"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-86-87" name="__codelineno-86-87" href="#__codelineno-86-87"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-86-88" name="__codelineno-86-88" href="#__codelineno-86-88"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.rs</span><pre><span></span><code><a id="__codelineno-87-1" name="__codelineno-87-1" href="#__codelineno-87-1"></a><span class="cm">/* リストクラス */</span>
|
||
<a id="__codelineno-87-2" name="__codelineno-87-2" href="#__codelineno-87-2"></a><span class="cp">#[allow(dead_code)]</span>
|
||
<a id="__codelineno-87-3" name="__codelineno-87-3" href="#__codelineno-87-3"></a><span class="k">struct</span><span class="w"> </span><span class="nc">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-4" name="__codelineno-87-4" href="#__codelineno-87-4"></a><span class="w"> </span><span class="n">arr</span><span class="p">:</span><span class="w"> </span><span class="nb">Vec</span><span class="o"><</span><span class="kt">i32</span><span class="o">></span><span class="p">,</span><span class="w"> </span><span class="c1">// 配列（リスト要素を格納）</span>
|
||
<a id="__codelineno-87-5" name="__codelineno-87-5" href="#__codelineno-87-5"></a><span class="w"> </span><span class="n">capacity</span><span class="p">:</span><span class="w"> </span><span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="c1">// リスト容量</span>
|
||
<a id="__codelineno-87-6" name="__codelineno-87-6" href="#__codelineno-87-6"></a><span class="w"> </span><span class="n">size</span><span class="p">:</span><span class="w"> </span><span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="c1">// リストの長さ（現在の要素数）</span>
|
||
<a id="__codelineno-87-7" name="__codelineno-87-7" href="#__codelineno-87-7"></a><span class="w"> </span><span class="n">extend_ratio</span><span class="p">:</span><span class="w"> </span><span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="c1">// リスト拡張時の増加倍率</span>
|
||
<a id="__codelineno-87-8" name="__codelineno-87-8" href="#__codelineno-87-8"></a><span class="p">}</span>
|
||
<a id="__codelineno-87-9" name="__codelineno-87-9" href="#__codelineno-87-9"></a>
|
||
<a id="__codelineno-87-10" name="__codelineno-87-10" href="#__codelineno-87-10"></a><span class="cp">#[allow(unused, unused_comparisons)]</span>
|
||
<a id="__codelineno-87-11" name="__codelineno-87-11" href="#__codelineno-87-11"></a><span class="k">impl</span><span class="w"> </span><span class="n">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-12" name="__codelineno-87-12" href="#__codelineno-87-12"></a><span class="w"> </span><span class="cm">/* コンストラクタ */</span>
|
||
<a id="__codelineno-87-13" name="__codelineno-87-13" href="#__codelineno-87-13"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="nf">new</span><span class="p">(</span><span class="n">capacity</span><span class="p">:</span><span class="w"> </span><span class="kt">usize</span><span class="p">)</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="nc">Self</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-14" name="__codelineno-87-14" href="#__codelineno-87-14"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="k">mut</span><span class="w"> </span><span class="n">vec</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="fm">vec!</span><span class="p">[</span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">capacity</span><span class="p">];</span>
|
||
<a id="__codelineno-87-15" name="__codelineno-87-15" href="#__codelineno-87-15"></a><span class="w"> </span><span class="bp">Self</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-16" name="__codelineno-87-16" href="#__codelineno-87-16"></a><span class="w"> </span><span class="n">arr</span><span class="p">:</span><span class="w"> </span><span class="nc">vec</span><span class="p">,</span>
|
||
<a id="__codelineno-87-17" name="__codelineno-87-17" href="#__codelineno-87-17"></a><span class="w"> </span><span class="n">capacity</span><span class="p">,</span>
|
||
<a id="__codelineno-87-18" name="__codelineno-87-18" href="#__codelineno-87-18"></a><span class="w"> </span><span class="n">size</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span>
|
||
<a id="__codelineno-87-19" name="__codelineno-87-19" href="#__codelineno-87-19"></a><span class="w"> </span><span class="n">extend_ratio</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span>
|
||
<a id="__codelineno-87-20" name="__codelineno-87-20" href="#__codelineno-87-20"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-87-21" name="__codelineno-87-21" href="#__codelineno-87-21"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-87-22" name="__codelineno-87-22" href="#__codelineno-87-22"></a>
|
||
<a id="__codelineno-87-23" name="__codelineno-87-23" href="#__codelineno-87-23"></a><span class="w"> </span><span class="cm">/* リストの長さを取得（現在の要素数） */</span>
|
||
<a id="__codelineno-87-24" name="__codelineno-87-24" href="#__codelineno-87-24"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="nf">size</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">)</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="kt">usize</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-25" name="__codelineno-87-25" href="#__codelineno-87-25"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="p">;</span>
|
||
<a id="__codelineno-87-26" name="__codelineno-87-26" href="#__codelineno-87-26"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-87-27" name="__codelineno-87-27" href="#__codelineno-87-27"></a>
|
||
<a id="__codelineno-87-28" name="__codelineno-87-28" href="#__codelineno-87-28"></a><span class="w"> </span><span class="cm">/* リスト容量を取得する */</span>
|
||
<a id="__codelineno-87-29" name="__codelineno-87-29" href="#__codelineno-87-29"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="nf">capacity</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">)</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="kt">usize</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-30" name="__codelineno-87-30" href="#__codelineno-87-30"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">capacity</span><span class="p">;</span>
|
||
<a id="__codelineno-87-31" name="__codelineno-87-31" href="#__codelineno-87-31"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-87-32" name="__codelineno-87-32" href="#__codelineno-87-32"></a>
|
||
<a id="__codelineno-87-33" name="__codelineno-87-33" href="#__codelineno-87-33"></a><span class="w"> </span><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-87-34" name="__codelineno-87-34" href="#__codelineno-87-34"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="nf">get</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">index</span><span class="p">:</span><span class="w"> </span><span class="kt">usize</span><span class="p">)</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="kt">i32</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-35" name="__codelineno-87-35" href="#__codelineno-87-35"></a><span class="w"> </span><span class="c1">// インデックスが範囲外なら例外を送出する。以下同様</span>
|
||
<a id="__codelineno-87-36" name="__codelineno-87-36" href="#__codelineno-87-36"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-37" name="__codelineno-87-37" href="#__codelineno-87-37"></a><span class="w"> </span><span class="fm">panic!</span><span class="p">(</span><span class="s">"インデックスが範囲外です"</span><span class="p">)</span>
|
||
<a id="__codelineno-87-38" name="__codelineno-87-38" href="#__codelineno-87-38"></a><span class="w"> </span><span class="p">};</span>
|
||
<a id="__codelineno-87-39" name="__codelineno-87-39" href="#__codelineno-87-39"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-87-40" name="__codelineno-87-40" href="#__codelineno-87-40"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-87-41" name="__codelineno-87-41" href="#__codelineno-87-41"></a>
|
||
<a id="__codelineno-87-42" name="__codelineno-87-42" href="#__codelineno-87-42"></a><span class="w"> </span><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-87-43" name="__codelineno-87-43" href="#__codelineno-87-43"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="nf">set</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">index</span><span class="p">:</span><span class="w"> </span><span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="n">num</span><span class="p">:</span><span class="w"> </span><span class="kt">i32</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-44" name="__codelineno-87-44" href="#__codelineno-87-44"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-45" name="__codelineno-87-45" href="#__codelineno-87-45"></a><span class="w"> </span><span class="fm">panic!</span><span class="p">(</span><span class="s">"インデックスが範囲外です"</span><span class="p">)</span>
|
||
<a id="__codelineno-87-46" name="__codelineno-87-46" href="#__codelineno-87-46"></a><span class="w"> </span><span class="p">};</span>
|
||
<a id="__codelineno-87-47" name="__codelineno-87-47" href="#__codelineno-87-47"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-87-48" name="__codelineno-87-48" href="#__codelineno-87-48"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-87-49" name="__codelineno-87-49" href="#__codelineno-87-49"></a>
|
||
<a id="__codelineno-87-50" name="__codelineno-87-50" href="#__codelineno-87-50"></a><span class="w"> </span><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-87-51" name="__codelineno-87-51" href="#__codelineno-87-51"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="nf">add</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">num</span><span class="p">:</span><span class="w"> </span><span class="kt">i32</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-52" name="__codelineno-87-52" href="#__codelineno-87-52"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-87-53" name="__codelineno-87-53" href="#__codelineno-87-53"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-54" name="__codelineno-87-54" href="#__codelineno-87-54"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">extend_capacity</span><span class="p">();</span>
|
||
<a id="__codelineno-87-55" name="__codelineno-87-55" href="#__codelineno-87-55"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-87-56" name="__codelineno-87-56" href="#__codelineno-87-56"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-87-57" name="__codelineno-87-57" href="#__codelineno-87-57"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-87-58" name="__codelineno-87-58" href="#__codelineno-87-58"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
|
||
<a id="__codelineno-87-59" name="__codelineno-87-59" href="#__codelineno-87-59"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-87-60" name="__codelineno-87-60" href="#__codelineno-87-60"></a>
|
||
<a id="__codelineno-87-61" name="__codelineno-87-61" href="#__codelineno-87-61"></a><span class="w"> </span><span class="cm">/* 中間に要素を挿入 */</span>
|
||
<a id="__codelineno-87-62" name="__codelineno-87-62" href="#__codelineno-87-62"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="nf">insert</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">index</span><span class="p">:</span><span class="w"> </span><span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="n">num</span><span class="p">:</span><span class="w"> </span><span class="kt">i32</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-63" name="__codelineno-87-63" href="#__codelineno-87-63"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-64" name="__codelineno-87-64" href="#__codelineno-87-64"></a><span class="w"> </span><span class="fm">panic!</span><span class="p">(</span><span class="s">"インデックスが範囲外です"</span><span class="p">)</span>
|
||
<a id="__codelineno-87-65" name="__codelineno-87-65" href="#__codelineno-87-65"></a><span class="w"> </span><span class="p">};</span>
|
||
<a id="__codelineno-87-66" name="__codelineno-87-66" href="#__codelineno-87-66"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-87-67" name="__codelineno-87-67" href="#__codelineno-87-67"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-68" name="__codelineno-87-68" href="#__codelineno-87-68"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">extend_capacity</span><span class="p">();</span>
|
||
<a id="__codelineno-87-69" name="__codelineno-87-69" href="#__codelineno-87-69"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-87-70" name="__codelineno-87-70" href="#__codelineno-87-70"></a><span class="w"> </span><span class="c1">// index 以降の要素をすべて 1 つ後ろへずらす</span>
|
||
<a id="__codelineno-87-71" name="__codelineno-87-71" href="#__codelineno-87-71"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="o">..</span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="p">).</span><span class="n">rev</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-72" name="__codelineno-87-72" href="#__codelineno-87-72"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">];</span>
|
||
<a id="__codelineno-87-73" name="__codelineno-87-73" href="#__codelineno-87-73"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-87-74" name="__codelineno-87-74" href="#__codelineno-87-74"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-87-75" name="__codelineno-87-75" href="#__codelineno-87-75"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-87-76" name="__codelineno-87-76" href="#__codelineno-87-76"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
|
||
<a id="__codelineno-87-77" name="__codelineno-87-77" href="#__codelineno-87-77"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-87-78" name="__codelineno-87-78" href="#__codelineno-87-78"></a>
|
||
<a id="__codelineno-87-79" name="__codelineno-87-79" href="#__codelineno-87-79"></a><span class="w"> </span><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-87-80" name="__codelineno-87-80" href="#__codelineno-87-80"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="nf">remove</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">index</span><span class="p">:</span><span class="w"> </span><span class="kt">usize</span><span class="p">)</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="kt">i32</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-81" name="__codelineno-87-81" href="#__codelineno-87-81"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-82" name="__codelineno-87-82" href="#__codelineno-87-82"></a><span class="w"> </span><span class="fm">panic!</span><span class="p">(</span><span class="s">"インデックスが範囲外です"</span><span class="p">)</span>
|
||
<a id="__codelineno-87-83" name="__codelineno-87-83" href="#__codelineno-87-83"></a><span class="w"> </span><span class="p">};</span>
|
||
<a id="__codelineno-87-84" name="__codelineno-87-84" href="#__codelineno-87-84"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-87-85" name="__codelineno-87-85" href="#__codelineno-87-85"></a><span class="w"> </span><span class="c1">// インデックス index より後の要素をすべて 1 つ前に移動する</span>
|
||
<a id="__codelineno-87-86" name="__codelineno-87-86" href="#__codelineno-87-86"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">index</span><span class="o">..</span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-87" name="__codelineno-87-87" href="#__codelineno-87-87"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">];</span>
|
||
<a id="__codelineno-87-88" name="__codelineno-87-88" href="#__codelineno-87-88"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-87-89" name="__codelineno-87-89" href="#__codelineno-87-89"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-87-90" name="__codelineno-87-90" href="#__codelineno-87-90"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="o">-=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
|
||
<a id="__codelineno-87-91" name="__codelineno-87-91" href="#__codelineno-87-91"></a><span class="w"> </span><span class="c1">// 削除された要素を返す</span>
|
||
<a id="__codelineno-87-92" name="__codelineno-87-92" href="#__codelineno-87-92"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-87-93" name="__codelineno-87-93" href="#__codelineno-87-93"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-87-94" name="__codelineno-87-94" href="#__codelineno-87-94"></a>
|
||
<a id="__codelineno-87-95" name="__codelineno-87-95" href="#__codelineno-87-95"></a><span class="w"> </span><span class="cm">/* リストの拡張 */</span>
|
||
<a id="__codelineno-87-96" name="__codelineno-87-96" href="#__codelineno-87-96"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="nf">extend_capacity</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-97" name="__codelineno-87-97" href="#__codelineno-87-97"></a><span class="w"> </span><span class="c1">// 元の配列の extend_ratio 倍の長さを持つ新しい配列を作成し、元の配列をコピーする</span>
|
||
<a id="__codelineno-87-98" name="__codelineno-87-98" href="#__codelineno-87-98"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">new_capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">capacity</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">extend_ratio</span><span class="p">;</span>
|
||
<a id="__codelineno-87-99" name="__codelineno-87-99" href="#__codelineno-87-99"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">arr</span><span class="p">.</span><span class="n">resize</span><span class="p">(</span><span class="n">new_capacity</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">);</span>
|
||
<a id="__codelineno-87-100" name="__codelineno-87-100" href="#__codelineno-87-100"></a><span class="w"> </span><span class="c1">// リストの容量を更新</span>
|
||
<a id="__codelineno-87-101" name="__codelineno-87-101" href="#__codelineno-87-101"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">new_capacity</span><span class="p">;</span>
|
||
<a id="__codelineno-87-102" name="__codelineno-87-102" href="#__codelineno-87-102"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-87-103" name="__codelineno-87-103" href="#__codelineno-87-103"></a>
|
||
<a id="__codelineno-87-104" name="__codelineno-87-104" href="#__codelineno-87-104"></a><span class="w"> </span><span class="cm">/* リストを配列に変換する */</span>
|
||
<a id="__codelineno-87-105" name="__codelineno-87-105" href="#__codelineno-87-105"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="nf">to_array</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">)</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="nb">Vec</span><span class="o"><</span><span class="kt">i32</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-106" name="__codelineno-87-106" href="#__codelineno-87-106"></a><span class="w"> </span><span class="c1">// 有効長の範囲内のリスト要素のみを変換</span>
|
||
<a id="__codelineno-87-107" name="__codelineno-87-107" href="#__codelineno-87-107"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="k">mut</span><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">Vec</span><span class="p">::</span><span class="n">new</span><span class="p">();</span>
|
||
<a id="__codelineno-87-108" name="__codelineno-87-108" href="#__codelineno-87-108"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="mi">0</span><span class="o">..</span><span class="bp">self</span><span class="p">.</span><span class="n">size</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-87-109" name="__codelineno-87-109" href="#__codelineno-87-109"></a><span class="w"> </span><span class="n">arr</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="bp">self</span><span class="p">.</span><span class="n">get</span><span class="p">(</span><span class="n">i</span><span class="p">));</span>
|
||
<a id="__codelineno-87-110" name="__codelineno-87-110" href="#__codelineno-87-110"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-87-111" name="__codelineno-87-111" href="#__codelineno-87-111"></a><span class="w"> </span><span class="n">arr</span>
|
||
<a id="__codelineno-87-112" name="__codelineno-87-112" href="#__codelineno-87-112"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-87-113" name="__codelineno-87-113" href="#__codelineno-87-113"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.c</span><pre><span></span><code><a id="__codelineno-88-1" name="__codelineno-88-1" href="#__codelineno-88-1"></a><span class="cm">/* リストクラス */</span>
|
||
<a id="__codelineno-88-2" name="__codelineno-88-2" href="#__codelineno-88-2"></a><span class="k">typedef</span><span class="w"> </span><span class="k">struct</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-88-3" name="__codelineno-88-3" href="#__codelineno-88-3"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">arr</span><span class="p">;</span><span class="w"> </span><span class="c1">// 配列（リスト要素を格納）</span>
|
||
<a id="__codelineno-88-4" name="__codelineno-88-4" href="#__codelineno-88-4"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">capacity</span><span class="p">;</span><span class="w"> </span><span class="c1">// リスト容量</span>
|
||
<a id="__codelineno-88-5" name="__codelineno-88-5" href="#__codelineno-88-5"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">size</span><span class="p">;</span><span class="w"> </span><span class="c1">// リストのサイズ</span>
|
||
<a id="__codelineno-88-6" name="__codelineno-88-6" href="#__codelineno-88-6"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">extendRatio</span><span class="p">;</span><span class="w"> </span><span class="c1">// リストが拡張されるたびの倍率</span>
|
||
<a id="__codelineno-88-7" name="__codelineno-88-7" href="#__codelineno-88-7"></a><span class="p">}</span><span class="w"> </span><span class="n">MyList</span><span class="p">;</span>
|
||
<a id="__codelineno-88-8" name="__codelineno-88-8" href="#__codelineno-88-8"></a>
|
||
<a id="__codelineno-88-9" name="__codelineno-88-9" href="#__codelineno-88-9"></a><span class="cm">/* コンストラクタ */</span>
|
||
<a id="__codelineno-88-10" name="__codelineno-88-10" href="#__codelineno-88-10"></a><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="nf">newMyList</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-88-11" name="__codelineno-88-11" href="#__codelineno-88-11"></a><span class="w"> </span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">malloc</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="n">MyList</span><span class="p">));</span>
|
||
<a id="__codelineno-88-12" name="__codelineno-88-12" href="#__codelineno-88-12"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">10</span><span class="p">;</span>
|
||
<a id="__codelineno-88-13" name="__codelineno-88-13" href="#__codelineno-88-13"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">malloc</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">capacity</span><span class="p">);</span>
|
||
<a id="__codelineno-88-14" name="__codelineno-88-14" href="#__codelineno-88-14"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<a id="__codelineno-88-15" name="__codelineno-88-15" href="#__codelineno-88-15"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">extendRatio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">2</span><span class="p">;</span>
|
||
<a id="__codelineno-88-16" name="__codelineno-88-16" href="#__codelineno-88-16"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="p">;</span>
|
||
<a id="__codelineno-88-17" name="__codelineno-88-17" href="#__codelineno-88-17"></a><span class="p">}</span>
|
||
<a id="__codelineno-88-18" name="__codelineno-88-18" href="#__codelineno-88-18"></a>
|
||
<a id="__codelineno-88-19" name="__codelineno-88-19" href="#__codelineno-88-19"></a><span class="cm">/* デストラクタ */</span>
|
||
<a id="__codelineno-88-20" name="__codelineno-88-20" href="#__codelineno-88-20"></a><span class="kt">void</span><span class="w"> </span><span class="nf">delMyList</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-88-21" name="__codelineno-88-21" href="#__codelineno-88-21"></a><span class="w"> </span><span class="n">free</span><span class="p">(</span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">);</span>
|
||
<a id="__codelineno-88-22" name="__codelineno-88-22" href="#__codelineno-88-22"></a><span class="w"> </span><span class="n">free</span><span class="p">(</span><span class="n">nums</span><span class="p">);</span>
|
||
<a id="__codelineno-88-23" name="__codelineno-88-23" href="#__codelineno-88-23"></a><span class="p">}</span>
|
||
<a id="__codelineno-88-24" name="__codelineno-88-24" href="#__codelineno-88-24"></a>
|
||
<a id="__codelineno-88-25" name="__codelineno-88-25" href="#__codelineno-88-25"></a><span class="cm">/* リストの長さを取得 */</span>
|
||
<a id="__codelineno-88-26" name="__codelineno-88-26" href="#__codelineno-88-26"></a><span class="kt">int</span><span class="w"> </span><span class="nf">size</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-88-27" name="__codelineno-88-27" href="#__codelineno-88-27"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">size</span><span class="p">;</span>
|
||
<a id="__codelineno-88-28" name="__codelineno-88-28" href="#__codelineno-88-28"></a><span class="p">}</span>
|
||
<a id="__codelineno-88-29" name="__codelineno-88-29" href="#__codelineno-88-29"></a>
|
||
<a id="__codelineno-88-30" name="__codelineno-88-30" href="#__codelineno-88-30"></a><span class="cm">/* リスト容量を取得する */</span>
|
||
<a id="__codelineno-88-31" name="__codelineno-88-31" href="#__codelineno-88-31"></a><span class="kt">int</span><span class="w"> </span><span class="nf">capacity</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-88-32" name="__codelineno-88-32" href="#__codelineno-88-32"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">capacity</span><span class="p">;</span>
|
||
<a id="__codelineno-88-33" name="__codelineno-88-33" href="#__codelineno-88-33"></a><span class="p">}</span>
|
||
<a id="__codelineno-88-34" name="__codelineno-88-34" href="#__codelineno-88-34"></a>
|
||
<a id="__codelineno-88-35" name="__codelineno-88-35" href="#__codelineno-88-35"></a><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-88-36" name="__codelineno-88-36" href="#__codelineno-88-36"></a><span class="kt">int</span><span class="w"> </span><span class="nf">get</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-88-37" name="__codelineno-88-37" href="#__codelineno-88-37"></a><span class="w"> </span><span class="n">assert</span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">size</span><span class="p">);</span>
|
||
<a id="__codelineno-88-38" name="__codelineno-88-38" href="#__codelineno-88-38"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-88-39" name="__codelineno-88-39" href="#__codelineno-88-39"></a><span class="p">}</span>
|
||
<a id="__codelineno-88-40" name="__codelineno-88-40" href="#__codelineno-88-40"></a>
|
||
<a id="__codelineno-88-41" name="__codelineno-88-41" href="#__codelineno-88-41"></a><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-88-42" name="__codelineno-88-42" href="#__codelineno-88-42"></a><span class="kt">void</span><span class="w"> </span><span class="nf">set</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-88-43" name="__codelineno-88-43" href="#__codelineno-88-43"></a><span class="w"> </span><span class="n">assert</span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">size</span><span class="p">);</span>
|
||
<a id="__codelineno-88-44" name="__codelineno-88-44" href="#__codelineno-88-44"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-88-45" name="__codelineno-88-45" href="#__codelineno-88-45"></a><span class="p">}</span>
|
||
<a id="__codelineno-88-46" name="__codelineno-88-46" href="#__codelineno-88-46"></a>
|
||
<a id="__codelineno-88-47" name="__codelineno-88-47" href="#__codelineno-88-47"></a><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-88-48" name="__codelineno-88-48" href="#__codelineno-88-48"></a><span class="kt">void</span><span class="w"> </span><span class="nf">add</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-88-49" name="__codelineno-88-49" href="#__codelineno-88-49"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="p">(</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">(</span><span class="n">nums</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-88-50" name="__codelineno-88-50" href="#__codelineno-88-50"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">(</span><span class="n">nums</span><span class="p">);</span><span class="w"> </span><span class="c1">// 容量を拡張</span>
|
||
<a id="__codelineno-88-51" name="__codelineno-88-51" href="#__codelineno-88-51"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-88-52" name="__codelineno-88-52" href="#__codelineno-88-52"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">size</span><span class="p">(</span><span class="n">nums</span><span class="p">)]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-88-53" name="__codelineno-88-53" href="#__codelineno-88-53"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-88-54" name="__codelineno-88-54" href="#__codelineno-88-54"></a><span class="p">}</span>
|
||
<a id="__codelineno-88-55" name="__codelineno-88-55" href="#__codelineno-88-55"></a>
|
||
<a id="__codelineno-88-56" name="__codelineno-88-56" href="#__codelineno-88-56"></a><span class="cm">/* 中間に要素を挿入 */</span>
|
||
<a id="__codelineno-88-57" name="__codelineno-88-57" href="#__codelineno-88-57"></a><span class="kt">void</span><span class="w"> </span><span class="nf">insert</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-88-58" name="__codelineno-88-58" href="#__codelineno-88-58"></a><span class="w"> </span><span class="n">assert</span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">(</span><span class="n">nums</span><span class="p">));</span>
|
||
<a id="__codelineno-88-59" name="__codelineno-88-59" href="#__codelineno-88-59"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-88-60" name="__codelineno-88-60" href="#__codelineno-88-60"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="p">(</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">(</span><span class="n">nums</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-88-61" name="__codelineno-88-61" href="#__codelineno-88-61"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">(</span><span class="n">nums</span><span class="p">);</span><span class="w"> </span><span class="c1">// 容量を拡張</span>
|
||
<a id="__codelineno-88-62" name="__codelineno-88-62" href="#__codelineno-88-62"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-88-63" name="__codelineno-88-63" href="#__codelineno-88-63"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">size</span><span class="p">(</span><span class="n">nums</span><span class="p">);</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="o">--</span><span class="n">i</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-88-64" name="__codelineno-88-64" href="#__codelineno-88-64"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">];</span>
|
||
<a id="__codelineno-88-65" name="__codelineno-88-65" href="#__codelineno-88-65"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-88-66" name="__codelineno-88-66" href="#__codelineno-88-66"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-88-67" name="__codelineno-88-67" href="#__codelineno-88-67"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">size</span><span class="o">++</span><span class="p">;</span>
|
||
<a id="__codelineno-88-68" name="__codelineno-88-68" href="#__codelineno-88-68"></a><span class="p">}</span>
|
||
<a id="__codelineno-88-69" name="__codelineno-88-69" href="#__codelineno-88-69"></a>
|
||
<a id="__codelineno-88-70" name="__codelineno-88-70" href="#__codelineno-88-70"></a><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-88-71" name="__codelineno-88-71" href="#__codelineno-88-71"></a><span class="c1">// 注意: stdio.h が remove 識別子を使用している</span>
|
||
<a id="__codelineno-88-72" name="__codelineno-88-72" href="#__codelineno-88-72"></a><span class="kt">int</span><span class="w"> </span><span class="nf">removeItem</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-88-73" name="__codelineno-88-73" href="#__codelineno-88-73"></a><span class="w"> </span><span class="n">assert</span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">(</span><span class="n">nums</span><span class="p">));</span>
|
||
<a id="__codelineno-88-74" name="__codelineno-88-74" href="#__codelineno-88-74"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||
<a id="__codelineno-88-75" name="__codelineno-88-75" href="#__codelineno-88-75"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">(</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-88-76" name="__codelineno-88-76" href="#__codelineno-88-76"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">];</span>
|
||
<a id="__codelineno-88-77" name="__codelineno-88-77" href="#__codelineno-88-77"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-88-78" name="__codelineno-88-78" href="#__codelineno-88-78"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">size</span><span class="o">--</span><span class="p">;</span>
|
||
<a id="__codelineno-88-79" name="__codelineno-88-79" href="#__codelineno-88-79"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
||
<a id="__codelineno-88-80" name="__codelineno-88-80" href="#__codelineno-88-80"></a><span class="p">}</span>
|
||
<a id="__codelineno-88-81" name="__codelineno-88-81" href="#__codelineno-88-81"></a>
|
||
<a id="__codelineno-88-82" name="__codelineno-88-82" href="#__codelineno-88-82"></a><span class="cm">/* リストの拡張 */</span>
|
||
<a id="__codelineno-88-83" name="__codelineno-88-83" href="#__codelineno-88-83"></a><span class="kt">void</span><span class="w"> </span><span class="nf">extendCapacity</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-88-84" name="__codelineno-88-84" href="#__codelineno-88-84"></a><span class="w"> </span><span class="c1">// 先に領域を確保する</span>
|
||
<a id="__codelineno-88-85" name="__codelineno-88-85" href="#__codelineno-88-85"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">newCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">capacity</span><span class="p">(</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">extendRatio</span><span class="p">;</span>
|
||
<a id="__codelineno-88-86" name="__codelineno-88-86" href="#__codelineno-88-86"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">extend</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="n">malloc</span><span class="p">(</span><span class="k">sizeof</span><span class="p">(</span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">newCapacity</span><span class="p">);</span>
|
||
<a id="__codelineno-88-87" name="__codelineno-88-87" href="#__codelineno-88-87"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="n">temp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-88-88" name="__codelineno-88-88" href="#__codelineno-88-88"></a>
|
||
<a id="__codelineno-88-89" name="__codelineno-88-89" href="#__codelineno-88-89"></a><span class="w"> </span><span class="c1">// 古いデータを新しいデータにコピー</span>
|
||
<a id="__codelineno-88-90" name="__codelineno-88-90" href="#__codelineno-88-90"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">(</span><span class="n">nums</span><span class="p">);</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span>
|
||
<a id="__codelineno-88-91" name="__codelineno-88-91" href="#__codelineno-88-91"></a><span class="w"> </span><span class="n">extend</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
|
||
<a id="__codelineno-88-92" name="__codelineno-88-92" href="#__codelineno-88-92"></a>
|
||
<a id="__codelineno-88-93" name="__codelineno-88-93" href="#__codelineno-88-93"></a><span class="w"> </span><span class="c1">// 古いデータを解放する</span>
|
||
<a id="__codelineno-88-94" name="__codelineno-88-94" href="#__codelineno-88-94"></a><span class="w"> </span><span class="n">free</span><span class="p">(</span><span class="n">temp</span><span class="p">);</span>
|
||
<a id="__codelineno-88-95" name="__codelineno-88-95" href="#__codelineno-88-95"></a>
|
||
<a id="__codelineno-88-96" name="__codelineno-88-96" href="#__codelineno-88-96"></a><span class="w"> </span><span class="c1">// 新しいデータに更新</span>
|
||
<a id="__codelineno-88-97" name="__codelineno-88-97" href="#__codelineno-88-97"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">extend</span><span class="p">;</span>
|
||
<a id="__codelineno-88-98" name="__codelineno-88-98" href="#__codelineno-88-98"></a><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">newCapacity</span><span class="p">;</span>
|
||
<a id="__codelineno-88-99" name="__codelineno-88-99" href="#__codelineno-88-99"></a><span class="p">}</span>
|
||
<a id="__codelineno-88-100" name="__codelineno-88-100" href="#__codelineno-88-100"></a>
|
||
<a id="__codelineno-88-101" name="__codelineno-88-101" href="#__codelineno-88-101"></a><span class="cm">/* 出力用にリストを Array に変換 */</span>
|
||
<a id="__codelineno-88-102" name="__codelineno-88-102" href="#__codelineno-88-102"></a><span class="kt">int</span><span class="w"> </span><span class="o">*</span><span class="nf">toArray</span><span class="p">(</span><span class="n">MyList</span><span class="w"> </span><span class="o">*</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-88-103" name="__codelineno-88-103" href="#__codelineno-88-103"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="o">-></span><span class="n">arr</span><span class="p">;</span>
|
||
<a id="__codelineno-88-104" name="__codelineno-88-104" href="#__codelineno-88-104"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.kt</span><pre><span></span><code><a id="__codelineno-89-1" name="__codelineno-89-1" href="#__codelineno-89-1"></a><span class="cm">/* リストクラス */</span>
|
||
<a id="__codelineno-89-2" name="__codelineno-89-2" href="#__codelineno-89-2"></a><span class="kd">class</span><span class="w"> </span><span class="nc">MyList</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-89-3" name="__codelineno-89-3" href="#__codelineno-89-3"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">arr</span><span class="p">:</span><span class="w"> </span><span class="n">IntArray</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">intArrayOf</span><span class="p">()</span><span class="w"> </span><span class="c1">// 配列（リスト要素を格納）</span>
|
||
<a id="__codelineno-89-4" name="__codelineno-89-4" href="#__codelineno-89-4"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">capacity</span><span class="p">:</span><span class="w"> </span><span class="kt">Int</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">10</span><span class="w"> </span><span class="c1">// リスト容量</span>
|
||
<a id="__codelineno-89-5" name="__codelineno-89-5" href="#__codelineno-89-5"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">size</span><span class="p">:</span><span class="w"> </span><span class="kt">Int</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="w"> </span><span class="c1">// リストの長さ（現在の要素数）</span>
|
||
<a id="__codelineno-89-6" name="__codelineno-89-6" href="#__codelineno-89-6"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">extendRatio</span><span class="p">:</span><span class="w"> </span><span class="kt">Int</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">2</span><span class="w"> </span><span class="c1">// リスト拡張時の増加倍率</span>
|
||
<a id="__codelineno-89-7" name="__codelineno-89-7" href="#__codelineno-89-7"></a>
|
||
<a id="__codelineno-89-8" name="__codelineno-89-8" href="#__codelineno-89-8"></a><span class="w"> </span><span class="cm">/* コンストラクタ */</span>
|
||
<a id="__codelineno-89-9" name="__codelineno-89-9" href="#__codelineno-89-9"></a><span class="w"> </span><span class="k">init</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-89-10" name="__codelineno-89-10" href="#__codelineno-89-10"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">IntArray</span><span class="p">(</span><span class="n">capacity</span><span class="p">)</span>
|
||
<a id="__codelineno-89-11" name="__codelineno-89-11" href="#__codelineno-89-11"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-89-12" name="__codelineno-89-12" href="#__codelineno-89-12"></a>
|
||
<a id="__codelineno-89-13" name="__codelineno-89-13" href="#__codelineno-89-13"></a><span class="w"> </span><span class="cm">/* リストの長さを取得（現在の要素数） */</span>
|
||
<a id="__codelineno-89-14" name="__codelineno-89-14" href="#__codelineno-89-14"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">size</span><span class="p">():</span><span class="w"> </span><span class="kt">Int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-89-15" name="__codelineno-89-15" href="#__codelineno-89-15"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">size</span>
|
||
<a id="__codelineno-89-16" name="__codelineno-89-16" href="#__codelineno-89-16"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-89-17" name="__codelineno-89-17" href="#__codelineno-89-17"></a>
|
||
<a id="__codelineno-89-18" name="__codelineno-89-18" href="#__codelineno-89-18"></a><span class="w"> </span><span class="cm">/* リスト容量を取得する */</span>
|
||
<a id="__codelineno-89-19" name="__codelineno-89-19" href="#__codelineno-89-19"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">capacity</span><span class="p">():</span><span class="w"> </span><span class="kt">Int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-89-20" name="__codelineno-89-20" href="#__codelineno-89-20"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">capacity</span>
|
||
<a id="__codelineno-89-21" name="__codelineno-89-21" href="#__codelineno-89-21"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-89-22" name="__codelineno-89-22" href="#__codelineno-89-22"></a>
|
||
<a id="__codelineno-89-23" name="__codelineno-89-23" href="#__codelineno-89-23"></a><span class="w"> </span><span class="cm">/* 要素にアクセス */</span>
|
||
<a id="__codelineno-89-24" name="__codelineno-89-24" href="#__codelineno-89-24"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">get</span><span class="p">(</span><span class="n">index</span><span class="p">:</span><span class="w"> </span><span class="kt">Int</span><span class="p">):</span><span class="w"> </span><span class="kt">Int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-89-25" name="__codelineno-89-25" href="#__codelineno-89-25"></a><span class="w"> </span><span class="c1">// インデックスが範囲外なら例外を送出する。以下同様</span>
|
||
<a id="__codelineno-89-26" name="__codelineno-89-26" href="#__codelineno-89-26"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="m">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">)</span>
|
||
<a id="__codelineno-89-27" name="__codelineno-89-27" href="#__codelineno-89-27"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">(</span><span class="s">"インデックスが範囲外"</span><span class="p">)</span>
|
||
<a id="__codelineno-89-28" name="__codelineno-89-28" href="#__codelineno-89-28"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">index</span><span class="o">]</span>
|
||
<a id="__codelineno-89-29" name="__codelineno-89-29" href="#__codelineno-89-29"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-89-30" name="__codelineno-89-30" href="#__codelineno-89-30"></a>
|
||
<a id="__codelineno-89-31" name="__codelineno-89-31" href="#__codelineno-89-31"></a><span class="w"> </span><span class="cm">/* 要素を更新 */</span>
|
||
<a id="__codelineno-89-32" name="__codelineno-89-32" href="#__codelineno-89-32"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">set</span><span class="p">(</span><span class="n">index</span><span class="p">:</span><span class="w"> </span><span class="kt">Int</span><span class="p">,</span><span class="w"> </span><span class="n">num</span><span class="p">:</span><span class="w"> </span><span class="kt">Int</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-89-33" name="__codelineno-89-33" href="#__codelineno-89-33"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="m">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">)</span>
|
||
<a id="__codelineno-89-34" name="__codelineno-89-34" href="#__codelineno-89-34"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">(</span><span class="s">"インデックスが範囲外"</span><span class="p">)</span>
|
||
<a id="__codelineno-89-35" name="__codelineno-89-35" href="#__codelineno-89-35"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">index</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span>
|
||
<a id="__codelineno-89-36" name="__codelineno-89-36" href="#__codelineno-89-36"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-89-37" name="__codelineno-89-37" href="#__codelineno-89-37"></a>
|
||
<a id="__codelineno-89-38" name="__codelineno-89-38" href="#__codelineno-89-38"></a><span class="w"> </span><span class="cm">/* 末尾に要素を追加 */</span>
|
||
<a id="__codelineno-89-39" name="__codelineno-89-39" href="#__codelineno-89-39"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">add</span><span class="p">(</span><span class="n">num</span><span class="p">:</span><span class="w"> </span><span class="kt">Int</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-89-40" name="__codelineno-89-40" href="#__codelineno-89-40"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-89-41" name="__codelineno-89-41" href="#__codelineno-89-41"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">())</span>
|
||
<a id="__codelineno-89-42" name="__codelineno-89-42" href="#__codelineno-89-42"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">()</span>
|
||
<a id="__codelineno-89-43" name="__codelineno-89-43" href="#__codelineno-89-43"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">size</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span>
|
||
<a id="__codelineno-89-44" name="__codelineno-89-44" href="#__codelineno-89-44"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-89-45" name="__codelineno-89-45" href="#__codelineno-89-45"></a><span class="w"> </span><span class="n">size</span><span class="o">++</span>
|
||
<a id="__codelineno-89-46" name="__codelineno-89-46" href="#__codelineno-89-46"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-89-47" name="__codelineno-89-47" href="#__codelineno-89-47"></a>
|
||
<a id="__codelineno-89-48" name="__codelineno-89-48" href="#__codelineno-89-48"></a><span class="w"> </span><span class="cm">/* 中間に要素を挿入 */</span>
|
||
<a id="__codelineno-89-49" name="__codelineno-89-49" href="#__codelineno-89-49"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">insert</span><span class="p">(</span><span class="n">index</span><span class="p">:</span><span class="w"> </span><span class="kt">Int</span><span class="p">,</span><span class="w"> </span><span class="n">num</span><span class="p">:</span><span class="w"> </span><span class="kt">Int</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-89-50" name="__codelineno-89-50" href="#__codelineno-89-50"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="m">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">)</span>
|
||
<a id="__codelineno-89-51" name="__codelineno-89-51" href="#__codelineno-89-51"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">(</span><span class="s">"インデックスが範囲外"</span><span class="p">)</span>
|
||
<a id="__codelineno-89-52" name="__codelineno-89-52" href="#__codelineno-89-52"></a><span class="w"> </span><span class="c1">// 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-89-53" name="__codelineno-89-53" href="#__codelineno-89-53"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">())</span>
|
||
<a id="__codelineno-89-54" name="__codelineno-89-54" href="#__codelineno-89-54"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">()</span>
|
||
<a id="__codelineno-89-55" name="__codelineno-89-55" href="#__codelineno-89-55"></a><span class="w"> </span><span class="c1">// index 以降の要素をすべて 1 つ後ろへずらす</span>
|
||
<a id="__codelineno-89-56" name="__codelineno-89-56" href="#__codelineno-89-56"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">j</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="m">1</span><span class="w"> </span><span class="n">downTo</span><span class="w"> </span><span class="n">index</span><span class="p">)</span>
|
||
<a id="__codelineno-89-57" name="__codelineno-89-57" href="#__codelineno-89-57"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="m">1</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">j</span><span class="o">]</span>
|
||
<a id="__codelineno-89-58" name="__codelineno-89-58" href="#__codelineno-89-58"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">index</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span>
|
||
<a id="__codelineno-89-59" name="__codelineno-89-59" href="#__codelineno-89-59"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-89-60" name="__codelineno-89-60" href="#__codelineno-89-60"></a><span class="w"> </span><span class="n">size</span><span class="o">++</span>
|
||
<a id="__codelineno-89-61" name="__codelineno-89-61" href="#__codelineno-89-61"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-89-62" name="__codelineno-89-62" href="#__codelineno-89-62"></a>
|
||
<a id="__codelineno-89-63" name="__codelineno-89-63" href="#__codelineno-89-63"></a><span class="w"> </span><span class="cm">/* 要素を削除 */</span>
|
||
<a id="__codelineno-89-64" name="__codelineno-89-64" href="#__codelineno-89-64"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">remove</span><span class="p">(</span><span class="n">index</span><span class="p">:</span><span class="w"> </span><span class="kt">Int</span><span class="p">):</span><span class="w"> </span><span class="kt">Int</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-89-65" name="__codelineno-89-65" href="#__codelineno-89-65"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="m">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">)</span>
|
||
<a id="__codelineno-89-66" name="__codelineno-89-66" href="#__codelineno-89-66"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">(</span><span class="s">"インデックスが範囲外"</span><span class="p">)</span>
|
||
<a id="__codelineno-89-67" name="__codelineno-89-67" href="#__codelineno-89-67"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">index</span><span class="o">]</span>
|
||
<a id="__codelineno-89-68" name="__codelineno-89-68" href="#__codelineno-89-68"></a><span class="w"> </span><span class="c1">// インデックス index より後の要素をすべて 1 つ前に移動する</span>
|
||
<a id="__codelineno-89-69" name="__codelineno-89-69" href="#__codelineno-89-69"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">j</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">index</span><span class="p">..</span><span class="o"><</span><span class="n">size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="m">1</span><span class="p">)</span>
|
||
<a id="__codelineno-89-70" name="__codelineno-89-70" href="#__codelineno-89-70"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">j</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="m">1</span><span class="o">]</span>
|
||
<a id="__codelineno-89-71" name="__codelineno-89-71" href="#__codelineno-89-71"></a><span class="w"> </span><span class="c1">// 要素数を更新</span>
|
||
<a id="__codelineno-89-72" name="__codelineno-89-72" href="#__codelineno-89-72"></a><span class="w"> </span><span class="n">size</span><span class="o">--</span>
|
||
<a id="__codelineno-89-73" name="__codelineno-89-73" href="#__codelineno-89-73"></a><span class="w"> </span><span class="c1">// 削除された要素を返す</span>
|
||
<a id="__codelineno-89-74" name="__codelineno-89-74" href="#__codelineno-89-74"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span>
|
||
<a id="__codelineno-89-75" name="__codelineno-89-75" href="#__codelineno-89-75"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-89-76" name="__codelineno-89-76" href="#__codelineno-89-76"></a>
|
||
<a id="__codelineno-89-77" name="__codelineno-89-77" href="#__codelineno-89-77"></a><span class="w"> </span><span class="cm">/* リストの拡張 */</span>
|
||
<a id="__codelineno-89-78" name="__codelineno-89-78" href="#__codelineno-89-78"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">extendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-89-79" name="__codelineno-89-79" href="#__codelineno-89-79"></a><span class="w"> </span><span class="c1">// 元の配列の extendRatio 倍の長さを持つ新しい配列を作成し、元の配列をコピーする</span>
|
||
<a id="__codelineno-89-80" name="__codelineno-89-80" href="#__codelineno-89-80"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">.</span><span class="na">copyOf</span><span class="p">(</span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">extendRatio</span><span class="p">)</span>
|
||
<a id="__codelineno-89-81" name="__codelineno-89-81" href="#__codelineno-89-81"></a><span class="w"> </span><span class="c1">// リストの容量を更新</span>
|
||
<a id="__codelineno-89-82" name="__codelineno-89-82" href="#__codelineno-89-82"></a><span class="w"> </span><span class="n">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="p">.</span><span class="na">size</span>
|
||
<a id="__codelineno-89-83" name="__codelineno-89-83" href="#__codelineno-89-83"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-89-84" name="__codelineno-89-84" href="#__codelineno-89-84"></a>
|
||
<a id="__codelineno-89-85" name="__codelineno-89-85" href="#__codelineno-89-85"></a><span class="w"> </span><span class="cm">/* リストを配列に変換する */</span>
|
||
<a id="__codelineno-89-86" name="__codelineno-89-86" href="#__codelineno-89-86"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">toArray</span><span class="p">():</span><span class="w"> </span><span class="n">IntArray</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-89-87" name="__codelineno-89-87" href="#__codelineno-89-87"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">size</span><span class="p">()</span>
|
||
<a id="__codelineno-89-88" name="__codelineno-89-88" href="#__codelineno-89-88"></a><span class="w"> </span><span class="c1">// 有効長の範囲内のリスト要素のみを変換</span>
|
||
<a id="__codelineno-89-89" name="__codelineno-89-89" href="#__codelineno-89-89"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">IntArray</span><span class="p">(</span><span class="n">size</span><span class="p">)</span>
|
||
<a id="__codelineno-89-90" name="__codelineno-89-90" href="#__codelineno-89-90"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">i</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="m">0.</span><span class="p">.</span><span class="o"><</span><span class="n">size</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||
<a id="__codelineno-89-91" name="__codelineno-89-91" href="#__codelineno-89-91"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">i</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">get</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
|
||
<a id="__codelineno-89-92" name="__codelineno-89-92" href="#__codelineno-89-92"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-89-93" name="__codelineno-89-93" href="#__codelineno-89-93"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">arr</span>
|
||
<a id="__codelineno-89-94" name="__codelineno-89-94" href="#__codelineno-89-94"></a><span class="w"> </span><span class="p">}</span>
|
||
<a id="__codelineno-89-95" name="__codelineno-89-95" href="#__codelineno-89-95"></a><span class="p">}</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<div class="tabbed-block">
|
||
<div class="highlight"><span class="filename">my_list.rb</span><pre><span></span><code><a id="__codelineno-90-1" name="__codelineno-90-1" href="#__codelineno-90-1"></a><span class="c1">### リストクラス ###</span>
|
||
<a id="__codelineno-90-2" name="__codelineno-90-2" href="#__codelineno-90-2"></a><span class="k">class</span><span class="w"> </span><span class="nc">MyList</span>
|
||
<a id="__codelineno-90-3" name="__codelineno-90-3" href="#__codelineno-90-3"></a><span class="w"> </span><span class="kp">attr_reader</span><span class="w"> </span><span class="ss">:size</span><span class="w"> </span><span class="c1"># リストの長さを取得（現在の要素数）</span>
|
||
<a id="__codelineno-90-4" name="__codelineno-90-4" href="#__codelineno-90-4"></a><span class="w"> </span><span class="kp">attr_reader</span><span class="w"> </span><span class="ss">:capacity</span><span class="w"> </span><span class="c1"># リスト容量を取得する</span>
|
||
<a id="__codelineno-90-5" name="__codelineno-90-5" href="#__codelineno-90-5"></a>
|
||
<a id="__codelineno-90-6" name="__codelineno-90-6" href="#__codelineno-90-6"></a><span class="w"> </span><span class="c1">### コンストラクタ ###</span>
|
||
<a id="__codelineno-90-7" name="__codelineno-90-7" href="#__codelineno-90-7"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">initialize</span>
|
||
<a id="__codelineno-90-8" name="__codelineno-90-8" href="#__codelineno-90-8"></a><span class="w"> </span><span class="vi">@capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">10</span>
|
||
<a id="__codelineno-90-9" name="__codelineno-90-9" href="#__codelineno-90-9"></a><span class="w"> </span><span class="vi">@size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span>
|
||
<a id="__codelineno-90-10" name="__codelineno-90-10" href="#__codelineno-90-10"></a><span class="w"> </span><span class="vi">@extend_ratio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">2</span>
|
||
<a id="__codelineno-90-11" name="__codelineno-90-11" href="#__codelineno-90-11"></a><span class="w"> </span><span class="vi">@arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">Array</span><span class="o">.</span><span class="n">new</span><span class="p">(</span><span class="n">capacity</span><span class="p">)</span>
|
||
<a id="__codelineno-90-12" name="__codelineno-90-12" href="#__codelineno-90-12"></a><span class="w"> </span><span class="k">end</span>
|
||
<a id="__codelineno-90-13" name="__codelineno-90-13" href="#__codelineno-90-13"></a>
|
||
<a id="__codelineno-90-14" name="__codelineno-90-14" href="#__codelineno-90-14"></a><span class="w"> </span><span class="c1">### 要素にアクセス ###</span>
|
||
<a id="__codelineno-90-15" name="__codelineno-90-15" href="#__codelineno-90-15"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">get</span><span class="p">(</span><span class="n">index</span><span class="p">)</span>
|
||
<a id="__codelineno-90-16" name="__codelineno-90-16" href="#__codelineno-90-16"></a><span class="w"> </span><span class="c1"># インデックスが範囲外なら例外を送出する。以下同様</span>
|
||
<a id="__codelineno-90-17" name="__codelineno-90-17" href="#__codelineno-90-17"></a><span class="w"> </span><span class="k">raise</span><span class="w"> </span><span class="no">IndexError</span><span class="p">,</span><span class="w"> </span><span class="s2">"インデックスが範囲外です"</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span>
|
||
<a id="__codelineno-90-18" name="__codelineno-90-18" href="#__codelineno-90-18"></a><span class="w"> </span><span class="vi">@arr</span><span class="o">[</span><span class="n">index</span><span class="o">]</span>
|
||
<a id="__codelineno-90-19" name="__codelineno-90-19" href="#__codelineno-90-19"></a><span class="w"> </span><span class="k">end</span>
|
||
<a id="__codelineno-90-20" name="__codelineno-90-20" href="#__codelineno-90-20"></a>
|
||
<a id="__codelineno-90-21" name="__codelineno-90-21" href="#__codelineno-90-21"></a><span class="w"> </span><span class="c1">### 要素にアクセス ###</span>
|
||
<a id="__codelineno-90-22" name="__codelineno-90-22" href="#__codelineno-90-22"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">set</span><span class="p">(</span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="n">num</span><span class="p">)</span>
|
||
<a id="__codelineno-90-23" name="__codelineno-90-23" href="#__codelineno-90-23"></a><span class="w"> </span><span class="k">raise</span><span class="w"> </span><span class="no">IndexError</span><span class="p">,</span><span class="w"> </span><span class="s2">"インデックスが範囲外です"</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span>
|
||
<a id="__codelineno-90-24" name="__codelineno-90-24" href="#__codelineno-90-24"></a><span class="w"> </span><span class="vi">@arr</span><span class="o">[</span><span class="n">index</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span>
|
||
<a id="__codelineno-90-25" name="__codelineno-90-25" href="#__codelineno-90-25"></a><span class="w"> </span><span class="k">end</span>
|
||
<a id="__codelineno-90-26" name="__codelineno-90-26" href="#__codelineno-90-26"></a>
|
||
<a id="__codelineno-90-27" name="__codelineno-90-27" href="#__codelineno-90-27"></a><span class="w"> </span><span class="c1">### 末尾に要素を追加 ###</span>
|
||
<a id="__codelineno-90-28" name="__codelineno-90-28" href="#__codelineno-90-28"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">add</span><span class="p">(</span><span class="n">num</span><span class="p">)</span>
|
||
<a id="__codelineno-90-29" name="__codelineno-90-29" href="#__codelineno-90-29"></a><span class="w"> </span><span class="c1"># 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-90-30" name="__codelineno-90-30" href="#__codelineno-90-30"></a><span class="w"> </span><span class="n">extend_capacity</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span>
|
||
<a id="__codelineno-90-31" name="__codelineno-90-31" href="#__codelineno-90-31"></a><span class="w"> </span><span class="vi">@arr</span><span class="o">[</span><span class="n">size</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span>
|
||
<a id="__codelineno-90-32" name="__codelineno-90-32" href="#__codelineno-90-32"></a>
|
||
<a id="__codelineno-90-33" name="__codelineno-90-33" href="#__codelineno-90-33"></a><span class="w"> </span><span class="c1"># 要素数を更新</span>
|
||
<a id="__codelineno-90-34" name="__codelineno-90-34" href="#__codelineno-90-34"></a><span class="w"> </span><span class="vi">@size</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span>
|
||
<a id="__codelineno-90-35" name="__codelineno-90-35" href="#__codelineno-90-35"></a><span class="w"> </span><span class="k">end</span>
|
||
<a id="__codelineno-90-36" name="__codelineno-90-36" href="#__codelineno-90-36"></a>
|
||
<a id="__codelineno-90-37" name="__codelineno-90-37" href="#__codelineno-90-37"></a><span class="w"> </span><span class="c1">### 途中に要素を挿入 ###</span>
|
||
<a id="__codelineno-90-38" name="__codelineno-90-38" href="#__codelineno-90-38"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">insert</span><span class="p">(</span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="n">num</span><span class="p">)</span>
|
||
<a id="__codelineno-90-39" name="__codelineno-90-39" href="#__codelineno-90-39"></a><span class="w"> </span><span class="k">raise</span><span class="w"> </span><span class="no">IndexError</span><span class="p">,</span><span class="w"> </span><span class="s2">"インデックスが範囲外です"</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span>
|
||
<a id="__codelineno-90-40" name="__codelineno-90-40" href="#__codelineno-90-40"></a>
|
||
<a id="__codelineno-90-41" name="__codelineno-90-41" href="#__codelineno-90-41"></a><span class="w"> </span><span class="c1"># 要素数が容量を超えると、拡張機構が発動する</span>
|
||
<a id="__codelineno-90-42" name="__codelineno-90-42" href="#__codelineno-90-42"></a><span class="w"> </span><span class="n">extend_capacity</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span>
|
||
<a id="__codelineno-90-43" name="__codelineno-90-43" href="#__codelineno-90-43"></a>
|
||
<a id="__codelineno-90-44" name="__codelineno-90-44" href="#__codelineno-90-44"></a><span class="w"> </span><span class="c1"># index 以降の要素をすべて 1 つ後ろへずらす</span>
|
||
<a id="__codelineno-90-45" name="__codelineno-90-45" href="#__codelineno-90-45"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="o">.</span><span class="n">downto</span><span class="p">(</span><span class="n">index</span><span class="p">)</span>
|
||
<a id="__codelineno-90-46" name="__codelineno-90-46" href="#__codelineno-90-46"></a><span class="w"> </span><span class="vi">@arr</span><span class="o">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@arr</span><span class="o">[</span><span class="n">j</span><span class="o">]</span>
|
||
<a id="__codelineno-90-47" name="__codelineno-90-47" href="#__codelineno-90-47"></a><span class="w"> </span><span class="k">end</span>
|
||
<a id="__codelineno-90-48" name="__codelineno-90-48" href="#__codelineno-90-48"></a><span class="w"> </span><span class="vi">@arr</span><span class="o">[</span><span class="n">index</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span>
|
||
<a id="__codelineno-90-49" name="__codelineno-90-49" href="#__codelineno-90-49"></a>
|
||
<a id="__codelineno-90-50" name="__codelineno-90-50" href="#__codelineno-90-50"></a><span class="w"> </span><span class="c1"># 要素数を更新</span>
|
||
<a id="__codelineno-90-51" name="__codelineno-90-51" href="#__codelineno-90-51"></a><span class="w"> </span><span class="vi">@size</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span>
|
||
<a id="__codelineno-90-52" name="__codelineno-90-52" href="#__codelineno-90-52"></a><span class="w"> </span><span class="k">end</span>
|
||
<a id="__codelineno-90-53" name="__codelineno-90-53" href="#__codelineno-90-53"></a>
|
||
<a id="__codelineno-90-54" name="__codelineno-90-54" href="#__codelineno-90-54"></a><span class="w"> </span><span class="c1">### 要素の削除 ###</span>
|
||
<a id="__codelineno-90-55" name="__codelineno-90-55" href="#__codelineno-90-55"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">remove</span><span class="p">(</span><span class="n">index</span><span class="p">)</span>
|
||
<a id="__codelineno-90-56" name="__codelineno-90-56" href="#__codelineno-90-56"></a><span class="w"> </span><span class="k">raise</span><span class="w"> </span><span class="no">IndexError</span><span class="p">,</span><span class="w"> </span><span class="s2">"インデックスが範囲外です"</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span>
|
||
<a id="__codelineno-90-57" name="__codelineno-90-57" href="#__codelineno-90-57"></a><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@arr</span><span class="o">[</span><span class="n">index</span><span class="o">]</span>
|
||
<a id="__codelineno-90-58" name="__codelineno-90-58" href="#__codelineno-90-58"></a>
|
||
<a id="__codelineno-90-59" name="__codelineno-90-59" href="#__codelineno-90-59"></a><span class="w"> </span><span class="c1"># インデックス index より後の要素をすべて 1 つ前に移動する</span>
|
||
<a id="__codelineno-90-60" name="__codelineno-90-60" href="#__codelineno-90-60"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">index</span><span class="o">...</span><span class="n">size</span>
|
||
<a id="__codelineno-90-61" name="__codelineno-90-61" href="#__codelineno-90-61"></a><span class="w"> </span><span class="vi">@arr</span><span class="o">[</span><span class="n">j</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@arr</span><span class="o">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="o">]</span>
|
||
<a id="__codelineno-90-62" name="__codelineno-90-62" href="#__codelineno-90-62"></a><span class="w"> </span><span class="k">end</span>
|
||
<a id="__codelineno-90-63" name="__codelineno-90-63" href="#__codelineno-90-63"></a>
|
||
<a id="__codelineno-90-64" name="__codelineno-90-64" href="#__codelineno-90-64"></a><span class="w"> </span><span class="c1"># 要素数を更新</span>
|
||
<a id="__codelineno-90-65" name="__codelineno-90-65" href="#__codelineno-90-65"></a><span class="w"> </span><span class="vi">@size</span><span class="w"> </span><span class="o">-=</span><span class="w"> </span><span class="mi">1</span>
|
||
<a id="__codelineno-90-66" name="__codelineno-90-66" href="#__codelineno-90-66"></a>
|
||
<a id="__codelineno-90-67" name="__codelineno-90-67" href="#__codelineno-90-67"></a><span class="w"> </span><span class="c1"># 削除された要素を返す</span>
|
||
<a id="__codelineno-90-68" name="__codelineno-90-68" href="#__codelineno-90-68"></a><span class="w"> </span><span class="n">num</span>
|
||
<a id="__codelineno-90-69" name="__codelineno-90-69" href="#__codelineno-90-69"></a><span class="w"> </span><span class="k">end</span>
|
||
<a id="__codelineno-90-70" name="__codelineno-90-70" href="#__codelineno-90-70"></a>
|
||
<a id="__codelineno-90-71" name="__codelineno-90-71" href="#__codelineno-90-71"></a><span class="w"> </span><span class="c1">### リストの容量拡張 ###</span>
|
||
<a id="__codelineno-90-72" name="__codelineno-90-72" href="#__codelineno-90-72"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">extend_capacity</span>
|
||
<a id="__codelineno-90-73" name="__codelineno-90-73" href="#__codelineno-90-73"></a><span class="w"> </span><span class="c1"># 元の配列の extend_ratio 倍の長さを持つ新しい配列を作成し、元の配列をコピーする</span>
|
||
<a id="__codelineno-90-74" name="__codelineno-90-74" href="#__codelineno-90-74"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@arr</span><span class="o">.</span><span class="n">dup</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="nb">Array</span><span class="o">.</span><span class="n">new</span><span class="p">(</span><span class="n">capacity</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="p">(</span><span class="vi">@extend_ratio</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">))</span>
|
||
<a id="__codelineno-90-75" name="__codelineno-90-75" href="#__codelineno-90-75"></a><span class="w"> </span><span class="c1"># リストの容量を更新</span>
|
||
<a id="__codelineno-90-76" name="__codelineno-90-76" href="#__codelineno-90-76"></a><span class="w"> </span><span class="vi">@capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arr</span><span class="o">.</span><span class="n">length</span>
|
||
<a id="__codelineno-90-77" name="__codelineno-90-77" href="#__codelineno-90-77"></a><span class="w"> </span><span class="k">end</span>
|
||
<a id="__codelineno-90-78" name="__codelineno-90-78" href="#__codelineno-90-78"></a>
|
||
<a id="__codelineno-90-79" name="__codelineno-90-79" href="#__codelineno-90-79"></a><span class="w"> </span><span class="c1">### リストを配列に変換 ###</span>
|
||
<a id="__codelineno-90-80" name="__codelineno-90-80" href="#__codelineno-90-80"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">to_array</span>
|
||
<a id="__codelineno-90-81" name="__codelineno-90-81" href="#__codelineno-90-81"></a><span class="w"> </span><span class="n">sz</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">size</span>
|
||
<a id="__codelineno-90-82" name="__codelineno-90-82" href="#__codelineno-90-82"></a><span class="w"> </span><span class="c1"># 有効長の範囲内のリスト要素のみを変換</span>
|
||
<a id="__codelineno-90-83" name="__codelineno-90-83" href="#__codelineno-90-83"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">Array</span><span class="o">.</span><span class="n">new</span><span class="p">(</span><span class="n">sz</span><span class="p">)</span>
|
||
<a id="__codelineno-90-84" name="__codelineno-90-84" href="#__codelineno-90-84"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="mi">0</span><span class="o">...</span><span class="n">sz</span>
|
||
<a id="__codelineno-90-85" name="__codelineno-90-85" href="#__codelineno-90-85"></a><span class="w"> </span><span class="n">arr</span><span class="o">[</span><span class="n">i</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">get</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
|
||
<a id="__codelineno-90-86" name="__codelineno-90-86" href="#__codelineno-90-86"></a><span class="w"> </span><span class="k">end</span>
|
||
<a id="__codelineno-90-87" name="__codelineno-90-87" href="#__codelineno-90-87"></a><span class="w"> </span><span class="n">arr</span>
|
||
<a id="__codelineno-90-88" name="__codelineno-90-88" href="#__codelineno-90-88"></a><span class="w"> </span><span class="k">end</span>
|
||
<a id="__codelineno-90-89" name="__codelineno-90-89" href="#__codelineno-90-89"></a><span class="k">end</span>
|
||
</code></pre></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<details class="pythontutor">
|
||
<summary>コードの可視化</summary>
|
||
<p><div style="height: 549px; width: 100%;"><iframe class="pythontutor-iframe" src="https://pythontutor.com/iframe-embed.html#code=class%20MyList%3A%0A%0A%20%20%20%20def%20__init__%28self%29%3A%0A%20%20%20%20%20%20%20%20self._capacity%3A%20int%20%3D%2010%0A%20%20%20%20%20%20%20%20self._arr%3A%20list%5Bint%5D%20%3D%20%5B0%5D%20%2A%20self._capacity%0A%20%20%20%20%20%20%20%20self._size%3A%20int%20%3D%200%0A%20%20%20%20%20%20%20%20self._extend_ratio%3A%20int%20%3D%202%0A%0A%20%20%20%20def%20size%28self%29%20-%3E%20int%3A%0A%20%20%20%20%20%20%20%20return%20self._size%0A%0A%20%20%20%20def%20capacity%28self%29%20-%3E%20int%3A%0A%20%20%20%20%20%20%20%20return%20self._capacity%0A%0A%20%20%20%20def%20get%28self%2C%20index%3A%20int%29%20-%3E%20int%3A%0A%20%20%20%20%20%20%20%20if%20index%20%3C%200%20or%20index%20%3E%3D%20self._size%3A%0A%20%20%20%20%20%20%20%20%20%20%20%20raise%20IndexError%28%27%E3%82%A4%E3%83%B3%E3%83%87%E3%83%83%E3%82%AF%E3%82%B9%E3%81%8C%E7%AF%84%E5%9B%B2%E5%A4%96%E3%81%A7%E3%81%99%27%29%0A%20%20%20%20%20%20%20%20return%20self._arr%5Bindex%5D%0A%0A%20%20%20%20def%20set%28self%2C%20num%3A%20int%2C%20index%3A%20int%29%3A%0A%20%20%20%20%20%20%20%20if%20index%20%3C%200%20or%20index%20%3E%3D%20self._size%3A%0A%20%20%20%20%20%20%20%20%20%20%20%20raise%20IndexError%28%27%E3%82%A4%E3%83%B3%E3%83%87%E3%83%83%E3%82%AF%E3%82%B9%E3%81%8C%E7%AF%84%E5%9B%B2%E5%A4%96%E3%81%A7%E3%81%99%27%29%0A%20%20%20%20%20%20%20%20self._arr%5Bindex%5D%20%3D%20num%0A%0A%20%20%20%20def%20add%28self%2C%20num%3A%20int%29%3A%0A%20%20%20%20%20%20%20%20if%20self.size%28%29%20%3D%3D%20self.capacity%28%29%3A%0A%20%20%20%20%20%20%20%20%20%20%20%20self.extend_capacity%28%29%0A%20%20%20%20%20%20%20%20self._arr%5Bself._size%5D%20%3D%20num%0A%20%20%20%20%20%20%20%20self._size%20%2B%3D%201%0A%0A%20%20%20%20def%20insert%28self%2C%20num%3A%20int%2C%20index%3A%20int%29%3A%0A%20%20%20%20%20%20%20%20if%20index%20%3C%200%20or%20index%20%3E%3D%20self._size%3A%0A%20%20%20%20%20%20%20%20%20%20%20%20raise%20IndexError%28%27%E3%82%A4%E3%83%B3%E3%83%87%E3%83%83%E3%82%AF%E3%82%B9%E3%81%8C%E7%AF%84%E5%9B%B2%E5%A4%96%E3%81%A7%E3%81%99%27%29%0A%20%20%20%20%20%20%20%20%20%20%20%20self.extend_capacity%28%29%0A%20%20%20%20%20%20%20%20for%20j%20in%20range%28self._size%20-%201%2C%20index%20-%201%2C%20-1%29%3A%0A%20%20%20%20%20%20%20%20%20%20%20%20self._arr%5Bj%20%2B%201%5D%20%3D%20self._arr%5Bj%5D%0A%20%20%20%20%20%20%20%20self._arr%5Bindex%5D%20%3D%20num%0A%20%20%20%20%20%20%20%20self._size%20%2B%3D%201%0A%0A%20%20%20%20def%20remove%28self%2C%20index%3A%20int%29%20-%3E%20int%3A%0A%20%20%20%20%20%20%20%20if%20index%20%3C%200%20or%20index%20%3E%3D%20self._size%3A%0A%20%20%20%20%20%20%20%20%20%20%20%20raise%20IndexError%28%27%E3%82%A4%E3%83%B3%E3%83%87%E3%83%83%E3%82%AF%E3%82%B9%E3%81%8C%E7%AF%84%E5%9B%B2%E5%A4%96%E3%81%A7%E3%81%99%27%29%0A%20%20%20%20%20%20%20%20num%20%3D%20self._arr%5Bindex%5D%0A%20%20%20%20%20%20%20%20for%20j%20in%20range%28index%2C%20self._size%20-%201%29%3A%0A%20%20%20%20%20%20%20%20%20%20%20%20self._arr%5Bj%5D%20%3D%20self._arr%5Bj%20%2B%201%5D%0A%20%20%20%20%20%20%20%20self._size%20-%3D%201%0A%20%20%20%20%20%20%20%20return%20num%0A%0A%20%20%20%20def%20extend_capacity%28self%29%3A%0A%20%20%20%20%20%20%20%20self._arr%20%3D%20self._arr%20%2B%20%5B0%5D%20%2A%20self.capacity%28%29%20%2A%20%28self._extend_ratio%20-%201%29%0A%20%20%20%20%20%20%20%20self._capacity%20%3D%20len%28self._arr%29%0Aif%20__name__%20%3D%3D%20%27__main__%27%3A%0A%20%20%20%20nums%20%3D%20MyList%28%29%0A%20%20%20%20nums.add%281%29%0A%20%20%20%20nums.add%283%29%0A%20%20%20%20nums.add%282%29%0A%20%20%20%20nums.add%285%29%0A%20%20%20%20nums.add%284%29%0A%20%20%20%20nums.insert%286%2C%20index%3D3%29%0A%20%20%20%20nums.remove%283%29%0A%20%20%20%20num%20%3D%20nums.get%281%29%0A%20%20%20%20nums.set%280%2C%201%29%0A%20%20%20%20for%20i%20in%20range%2810%29%3A%0A%20%20%20%20%20%20%20%20nums.add%28i%29&codeDivHeight=472&codeDivWidth=350&cumulative=false&curInstr=3&heapPrimitives=nevernest&origin=opt-frontend.js&py=311&rawInputLstJSON=%5B%5D&textReferences=false"> </iframe></div>
|
||
<div style="margin-top: 5px;"><a href="https://pythontutor.com/iframe-embed.html#code=class%20MyList%3A%0A%0A%20%20%20%20def%20__init__%28self%29%3A%0A%20%20%20%20%20%20%20%20self._capacity%3A%20int%20%3D%2010%0A%20%20%20%20%20%20%20%20self._arr%3A%20list%5Bint%5D%20%3D%20%5B0%5D%20%2A%20self._capacity%0A%20%20%20%20%20%20%20%20self._size%3A%20int%20%3D%200%0A%20%20%20%20%20%20%20%20self._extend_ratio%3A%20int%20%3D%202%0A%0A%20%20%20%20def%20size%28self%29%20-%3E%20int%3A%0A%20%20%20%20%20%20%20%20return%20self._size%0A%0A%20%20%20%20def%20capacity%28self%29%20-%3E%20int%3A%0A%20%20%20%20%20%20%20%20return%20self._capacity%0A%0A%20%20%20%20def%20get%28self%2C%20index%3A%20int%29%20-%3E%20int%3A%0A%20%20%20%20%20%20%20%20if%20index%20%3C%200%20or%20index%20%3E%3D%20self._size%3A%0A%20%20%20%20%20%20%20%20%20%20%20%20raise%20IndexError%28%27%E3%82%A4%E3%83%B3%E3%83%87%E3%83%83%E3%82%AF%E3%82%B9%E3%81%8C%E7%AF%84%E5%9B%B2%E5%A4%96%E3%81%A7%E3%81%99%27%29%0A%20%20%20%20%20%20%20%20return%20self._arr%5Bindex%5D%0A%0A%20%20%20%20def%20set%28self%2C%20num%3A%20int%2C%20index%3A%20int%29%3A%0A%20%20%20%20%20%20%20%20if%20index%20%3C%200%20or%20index%20%3E%3D%20self._size%3A%0A%20%20%20%20%20%20%20%20%20%20%20%20raise%20IndexError%28%27%E3%82%A4%E3%83%B3%E3%83%87%E3%83%83%E3%82%AF%E3%82%B9%E3%81%8C%E7%AF%84%E5%9B%B2%E5%A4%96%E3%81%A7%E3%81%99%27%29%0A%20%20%20%20%20%20%20%20self._arr%5Bindex%5D%20%3D%20num%0A%0A%20%20%20%20def%20add%28self%2C%20num%3A%20int%29%3A%0A%20%20%20%20%20%20%20%20if%20self.size%28%29%20%3D%3D%20self.capacity%28%29%3A%0A%20%20%20%20%20%20%20%20%20%20%20%20self.extend_capacity%28%29%0A%20%20%20%20%20%20%20%20self._arr%5Bself._size%5D%20%3D%20num%0A%20%20%20%20%20%20%20%20self._size%20%2B%3D%201%0A%0A%20%20%20%20def%20insert%28self%2C%20num%3A%20int%2C%20index%3A%20int%29%3A%0A%20%20%20%20%20%20%20%20if%20index%20%3C%200%20or%20index%20%3E%3D%20self._size%3A%0A%20%20%20%20%20%20%20%20%20%20%20%20raise%20IndexError%28%27%E3%82%A4%E3%83%B3%E3%83%87%E3%83%83%E3%82%AF%E3%82%B9%E3%81%8C%E7%AF%84%E5%9B%B2%E5%A4%96%E3%81%A7%E3%81%99%27%29%0A%20%20%20%20%20%20%20%20%20%20%20%20self.extend_capacity%28%29%0A%20%20%20%20%20%20%20%20for%20j%20in%20range%28self._size%20-%201%2C%20index%20-%201%2C%20-1%29%3A%0A%20%20%20%20%20%20%20%20%20%20%20%20self._arr%5Bj%20%2B%201%5D%20%3D%20self._arr%5Bj%5D%0A%20%20%20%20%20%20%20%20self._arr%5Bindex%5D%20%3D%20num%0A%20%20%20%20%20%20%20%20self._size%20%2B%3D%201%0A%0A%20%20%20%20def%20remove%28self%2C%20index%3A%20int%29%20-%3E%20int%3A%0A%20%20%20%20%20%20%20%20if%20index%20%3C%200%20or%20index%20%3E%3D%20self._size%3A%0A%20%20%20%20%20%20%20%20%20%20%20%20raise%20IndexError%28%27%E3%82%A4%E3%83%B3%E3%83%87%E3%83%83%E3%82%AF%E3%82%B9%E3%81%8C%E7%AF%84%E5%9B%B2%E5%A4%96%E3%81%A7%E3%81%99%27%29%0A%20%20%20%20%20%20%20%20num%20%3D%20self._arr%5Bindex%5D%0A%20%20%20%20%20%20%20%20for%20j%20in%20range%28index%2C%20self._size%20-%201%29%3A%0A%20%20%20%20%20%20%20%20%20%20%20%20self._arr%5Bj%5D%20%3D%20self._arr%5Bj%20%2B%201%5D%0A%20%20%20%20%20%20%20%20self._size%20-%3D%201%0A%20%20%20%20%20%20%20%20return%20num%0A%0A%20%20%20%20def%20extend_capacity%28self%29%3A%0A%20%20%20%20%20%20%20%20self._arr%20%3D%20self._arr%20%2B%20%5B0%5D%20%2A%20self.capacity%28%29%20%2A%20%28self._extend_ratio%20-%201%29%0A%20%20%20%20%20%20%20%20self._capacity%20%3D%20len%28self._arr%29%0Aif%20__name__%20%3D%3D%20%27__main__%27%3A%0A%20%20%20%20nums%20%3D%20MyList%28%29%0A%20%20%20%20nums.add%281%29%0A%20%20%20%20nums.add%283%29%0A%20%20%20%20nums.add%282%29%0A%20%20%20%20nums.add%285%29%0A%20%20%20%20nums.add%284%29%0A%20%20%20%20nums.insert%286%2C%20index%3D3%29%0A%20%20%20%20nums.remove%283%29%0A%20%20%20%20num%20%3D%20nums.get%281%29%0A%20%20%20%20nums.set%280%2C%201%29%0A%20%20%20%20for%20i%20in%20range%2810%29%3A%0A%20%20%20%20%20%20%20%20nums.add%28i%29&codeDivHeight=800&codeDivWidth=600&cumulative=false&curInstr=3&heapPrimitives=nevernest&origin=opt-frontend.js&py=311&rawInputLstJSON=%5B%5D&textReferences=false" target="_blank" rel="noopener noreferrer">全画面で見る ></a></div></p>
|
||
</details>
|
||
|
||
<!-- Source file information -->
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||
|
||
|
||
<!-- Was this page helpful? -->
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||
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||
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||
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||
|
||
<!-- Previous and next pages link -->
|
||
<nav
|
||
class="md-footer__inner md-grid"
|
||
aria-label="フッター"
|
||
|
||
>
|
||
|
||
<!-- Link to previous page -->
|
||
|
||
|
||
<a
|
||
href="../linked_list/"
|
||
class="md-footer__link md-footer__link--prev"
|
||
aria-label="前: 4.2 &nbsp; 連結リスト"
|
||
rel="prev"
|
||
>
|
||
<div class="md-footer__button md-icon">
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="lucide lucide-arrow-left" viewBox="0 0 24 24"><path d="m12 19-7-7 7-7M19 12H5"/></svg>
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||
</div>
|
||
<div class="md-footer__title">
|
||
<span class="md-footer__direction">
|
||
前
|
||
</span>
|
||
<div class="md-ellipsis">
|
||
4.2 連結リスト
|
||
</div>
|
||
</div>
|
||
</a>
|
||
|
||
|
||
<!-- Link to next page -->
|
||
|
||
|
||
<a
|
||
href="../ram_and_cache/"
|
||
class="md-footer__link md-footer__link--next"
|
||
aria-label="次: 4.4 &nbsp; メモリとキャッシュ *"
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||
rel="next"
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||
>
|
||
<div class="md-footer__title">
|
||
<span class="md-footer__direction">
|
||
次
|
||
</span>
|
||
<div class="md-ellipsis">
|
||
4.4 メモリとキャッシュ *
|
||
</div>
|
||
</div>
|
||
<div class="md-footer__button md-icon">
|
||
|
||
<svg xmlns="http://www.w3.org/2000/svg" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="lucide lucide-arrow-right" viewBox="0 0 24 24"><path d="M5 12h14M12 5l7 7-7 7"/></svg>
|
||
</div>
|
||
</a>
|
||
|
||
</nav>
|
||
|
||
<!-- Comment system -->
|
||
|
||
|
||
|
||
|
||
|
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|
||
<!-- Check-in button above comments -->
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||
|
||
|
||
<h5 align="center" id="__comments">ご意見、ご質問、ご提案があればぜひコメントしてください</h5>
|
||
|
||
<!-- Insert generated snippet here -->
|
||
<script
|
||
src="https://giscus.app/client.js"
|
||
data-repo="krahets/hello-algo"
|
||
data-repo-id="R_kgDOIXtSqw"
|
||
data-category="Announcements"
|
||
data-category-id="DIC_kwDOIXtSq84CSZk_"
|
||
data-mapping="pathname"
|
||
data-strict="1"
|
||
data-reactions-enabled="1"
|
||
data-emit-metadata="1"
|
||
data-input-position="top"
|
||
data-theme="light"
|
||
data-lang="ja"
|
||
crossorigin="anonymous"
|
||
async
|
||
>
|
||
</script>
|
||
<!-- Synchronize Giscus theme with palette -->
|
||
<script>
|
||
var giscus = document.querySelector("script[src*=giscus]")
|
||
|
||
/* Set palette on initial load */
|
||
var palette = __md_get("__palette")
|
||
if (palette && typeof palette.color === "object") {
|
||
var theme = palette.color.scheme === "slate" ? "noborder_dark" : "light"
|
||
giscus.setAttribute("data-theme", theme)
|
||
}
|
||
|
||
/* Register event handlers after documented loaded */
|
||
document.addEventListener("DOMContentLoaded", function() {
|
||
var ref = document.querySelector("[data-md-component=palette]")
|
||
ref.addEventListener("change", function() {
|
||
var palette = __md_get("__palette")
|
||
if (palette && typeof palette.color === "object") {
|
||
var theme = palette.color.scheme === "slate" ? "noborder_dark" : "light"
|
||
|
||
/* Instruct Giscus to change theme */
|
||
var frame = document.querySelector(".giscus-frame")
|
||
frame.contentWindow.postMessage(
|
||
{ giscus: { setConfig: { theme } } },
|
||
"https://giscus.app"
|
||
)
|
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}
|
||
})
|
||
})
|
||
</script>
|
||
|
||
|
||
</article>
|
||
</div>
|
||
|
||
|
||
<script>var tabs=__md_get("__tabs");if(Array.isArray(tabs))e:for(var set of document.querySelectorAll(".tabbed-set")){var labels=set.querySelector(".tabbed-labels");for(var tab of tabs)for(var label of labels.getElementsByTagName("label"))if(label.innerText.trim()===tab){var input=document.getElementById(label.htmlFor);input.checked=!0;continue e}}</script>
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<script>var target=document.getElementById(location.hash.slice(1));target&&target.name&&(target.checked=target.name.startsWith("__tabbed_"))</script>
|
||
</div>
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||
<button type="button" class="md-top md-icon" data-md-component="top" hidden>
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||
|
||
<svg xmlns="http://www.w3.org/2000/svg" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="lucide lucide-circle-arrow-up" viewBox="0 0 24 24"><circle cx="12" cy="12" r="10"/><path d="m16 12-4-4-4 4M12 16V8"/></svg>
|
||
ページトップへ戻る
|
||
</button>
|
||
|
||
</main>
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||
|
||
<footer class="md-footer">
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||
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||
<div class="md-footer-meta md-typeset">
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||
<div class="md-footer-meta__inner md-grid">
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<div class="md-copyright">
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||
<div class="md-copyright__highlight">
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Copyright © 2026 krahets<br>The website content is licensed under <a href="https://creativecommons.org/licenses/by-nc-sa/4.0/">CC BY-NC-SA 4.0</a>
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||
</div>
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||
|
||
</div>
|
||
|
||
|
||
<div class="md-social">
|
||
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||
|
||
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||
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||
|
||
|
||
|
||
<a href="https://github.com/krahets" target="_blank" rel="noopener" title="github.com" class="md-social__link">
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