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Ikko Eltociear Ashimine
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* docs: add Japanese documents (`ja/docs`) * docs: add Japanese documents (`ja/codes`) * docs: add Japanese documents * Remove pythontutor blocks in ja/ * Add an empty at the end of each markdown file. * Add the missing figures (use the English version temporarily). * Add index.md for Japanese version. * Add index.html for Japanese version. * Add missing index.assets * Fix backtracking_algorithm.md for Japanese version. * Add avatar_eltociear.jpg. Fix image links on the Japanese landing page. * Add the Japanese banner. --------- Co-authored-by: krahets <krahets@163.com>
72 lines
1.8 KiB
Python
72 lines
1.8 KiB
Python
"""
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File: array_stack.py
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Created Time: 2022-11-29
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Author: Peng Chen (pengchzn@gmail.com)
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"""
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class ArrayStack:
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"""配列ベースのスタッククラス"""
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def __init__(self):
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"""コンストラクタ"""
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self._stack: list[int] = []
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def size(self) -> int:
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"""スタックの長さを取得"""
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return len(self._stack)
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def is_empty(self) -> bool:
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"""スタックが空かどうかを判定"""
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return self.size() == 0
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def push(self, item: int):
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"""プッシュ"""
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self._stack.append(item)
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def pop(self) -> int:
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"""ポップ"""
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if self.is_empty():
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raise IndexError("Stack is empty")
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return self._stack.pop()
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def peek(self) -> int:
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"""スタックトップ要素にアクセス"""
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if self.is_empty():
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raise IndexError("Stack is empty")
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return self._stack[-1]
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def to_list(self) -> list[int]:
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"""出力用の配列を返す"""
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return self._stack
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"""Driver Code"""
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if __name__ == "__main__":
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# スタックを初期化
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stack = ArrayStack()
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# 要素をプッシュ
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stack.push(1)
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stack.push(3)
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stack.push(2)
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stack.push(5)
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stack.push(4)
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print("スタック stack =", stack.to_list())
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# スタックトップ要素にアクセス
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peek: int = stack.peek()
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print("スタックトップ要素 peek =", peek)
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# 要素をポップ
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pop: int = stack.pop()
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print("ポップされた要素 pop =", pop)
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print("ポップ後のスタック =", stack.to_list())
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# スタックの長さを取得
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size: int = stack.size()
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print("スタックの長さ size =", size)
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# 空かどうかを判定
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is_empty: bool = stack.is_empty()
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print("スタックが空かどうか =", is_empty) |