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@@ -3114,10 +3114,10 @@
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">graph_adjacency_matrix.kt</span><pre><span></span><code><a id="__codelineno-11-1" name="__codelineno-11-1" href="#__codelineno-11-1"></a><span class="cm">/* 基于邻接矩阵实现的无向图类 */</span>
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<a id="__codelineno-11-2" name="__codelineno-11-2" href="#__codelineno-11-2"></a><span class="kd">class</span><span class="w"> </span><span class="nc">GraphAdjMat</span><span class="p">(</span><span class="n">vertices</span><span class="p">:</span><span class="w"> </span><span class="n">IntArray</span><span class="p">,</span><span class="w"> </span><span class="n">edges</span><span class="p">:</span><span class="w"> </span><span class="n">Array</span><span class="o"><</span><span class="n">IntArray</span><span class="o">></span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-11-3" name="__codelineno-11-3" href="#__codelineno-11-3"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">vertices</span><span class="p">:</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="p">()</span><span class="w"> </span><span class="c1">// 顶点列表，元素代表“顶点值”，索引代表“顶点索引”</span>
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<a id="__codelineno-11-4" name="__codelineno-11-4" href="#__codelineno-11-4"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">adjMat</span><span class="p">:</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="n">MutableList</span><span class="o"><</span><span class="kt">Int</span><span class="o">>></span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="p">()</span><span class="w"> </span><span class="c1">// 邻接矩阵，行列索引对应“顶点索引”</span>
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<a id="__codelineno-11-3" name="__codelineno-11-3" href="#__codelineno-11-3"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">vertices</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="p">()</span><span class="w"> </span><span class="c1">// 顶点列表，元素代表“顶点值”，索引代表“顶点索引”</span>
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<a id="__codelineno-11-4" name="__codelineno-11-4" href="#__codelineno-11-4"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">adjMat</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="n">MutableList</span><span class="o"><</span><span class="kt">Int</span><span class="o">>></span><span class="p">()</span><span class="w"> </span><span class="c1">// 邻接矩阵，行列索引对应“顶点索引”</span>
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<a id="__codelineno-11-5" name="__codelineno-11-5" href="#__codelineno-11-5"></a>
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<a id="__codelineno-11-6" name="__codelineno-11-6" href="#__codelineno-11-6"></a><span class="w"> </span><span class="cm">/* 构造函数 */</span>
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<a id="__codelineno-11-6" name="__codelineno-11-6" href="#__codelineno-11-6"></a><span class="w"> </span><span class="cm">/* 构造方法 */</span>
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<a id="__codelineno-11-7" name="__codelineno-11-7" href="#__codelineno-11-7"></a><span class="w"> </span><span class="k">init</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-11-8" name="__codelineno-11-8" href="#__codelineno-11-8"></a><span class="w"> </span><span class="c1">// 添加顶点</span>
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<a id="__codelineno-11-9" name="__codelineno-11-9" href="#__codelineno-11-9"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">vertex</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">vertices</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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@@ -3141,7 +3141,7 @@
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<a id="__codelineno-11-27" name="__codelineno-11-27" href="#__codelineno-11-27"></a><span class="w"> </span><span class="c1">// 向顶点列表中添加新顶点的值</span>
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<a id="__codelineno-11-28" name="__codelineno-11-28" href="#__codelineno-11-28"></a><span class="w"> </span><span class="n">vertices</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
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<a id="__codelineno-11-29" name="__codelineno-11-29" href="#__codelineno-11-29"></a><span class="w"> </span><span class="c1">// 在邻接矩阵中添加一行</span>
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<a id="__codelineno-11-30" name="__codelineno-11-30" href="#__codelineno-11-30"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">newRow</span><span class="p">:</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="p">()</span>
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<a id="__codelineno-11-30" name="__codelineno-11-30" href="#__codelineno-11-30"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">newRow</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="p">()</span>
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<a id="__codelineno-11-31" name="__codelineno-11-31" href="#__codelineno-11-31"></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="m">0.</span><span class="p">.</span><span class="o"><</span><span class="n">n</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-11-32" name="__codelineno-11-32" href="#__codelineno-11-32"></a><span class="w"> </span><span class="n">newRow</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="m">0</span><span class="p">)</span>
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<a id="__codelineno-11-33" name="__codelineno-11-33" href="#__codelineno-11-33"></a><span class="w"> </span><span class="p">}</span>
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@@ -3154,44 +3154,47 @@
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<a id="__codelineno-11-40" name="__codelineno-11-40" href="#__codelineno-11-40"></a>
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<a id="__codelineno-11-41" name="__codelineno-11-41" href="#__codelineno-11-41"></a><span class="w"> </span><span class="cm">/* 删除顶点 */</span>
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<a id="__codelineno-11-42" name="__codelineno-11-42" href="#__codelineno-11-42"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">removeVertex</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="p">{</span>
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<a id="__codelineno-11-43" name="__codelineno-11-43" href="#__codelineno-11-43"></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">IndexOutOfBoundsException</span><span class="p">()</span>
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<a id="__codelineno-11-44" name="__codelineno-11-44" href="#__codelineno-11-44"></a><span class="w"> </span><span class="c1">// 在顶点列表中移除索引 index 的顶点</span>
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<a id="__codelineno-11-45" name="__codelineno-11-45" href="#__codelineno-11-45"></a><span class="w"> </span><span class="n">vertices</span><span class="p">.</span><span class="na">removeAt</span><span class="p">(</span><span class="n">index</span><span class="p">)</span>
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<a id="__codelineno-11-46" name="__codelineno-11-46" href="#__codelineno-11-46"></a><span class="w"> </span><span class="c1">// 在邻接矩阵中删除索引 index 的行</span>
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<a id="__codelineno-11-47" name="__codelineno-11-47" href="#__codelineno-11-47"></a><span class="w"> </span><span class="n">adjMat</span><span class="p">.</span><span class="na">removeAt</span><span class="p">(</span><span class="n">index</span><span class="p">)</span>
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<a id="__codelineno-11-48" name="__codelineno-11-48" href="#__codelineno-11-48"></a><span class="w"> </span><span class="c1">// 在邻接矩阵中删除索引 index 的列</span>
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<a id="__codelineno-11-49" name="__codelineno-11-49" href="#__codelineno-11-49"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">row</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">adjMat</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-11-50" name="__codelineno-11-50" href="#__codelineno-11-50"></a><span class="w"> </span><span class="n">row</span><span class="p">.</span><span class="na">removeAt</span><span class="p">(</span><span class="n">index</span><span class="p">)</span>
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<a id="__codelineno-11-51" name="__codelineno-11-51" href="#__codelineno-11-51"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-11-52" name="__codelineno-11-52" href="#__codelineno-11-52"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-11-53" name="__codelineno-11-53" href="#__codelineno-11-53"></a>
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<a id="__codelineno-11-54" name="__codelineno-11-54" href="#__codelineno-11-54"></a><span class="w"> </span><span class="cm">/* 添加边 */</span>
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<a id="__codelineno-11-55" name="__codelineno-11-55" href="#__codelineno-11-55"></a><span class="w"> </span><span class="c1">// 参数 i, j 对应 vertices 元素索引</span>
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<a id="__codelineno-11-56" name="__codelineno-11-56" href="#__codelineno-11-56"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">addEdge</span><span class="p">(</span><span class="n">i</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">j</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>
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<a id="__codelineno-11-57" name="__codelineno-11-57" href="#__codelineno-11-57"></a><span class="w"> </span><span class="c1">// 索引越界与相等处理</span>
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<a id="__codelineno-11-58" name="__codelineno-11-58" href="#__codelineno-11-58"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</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="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">j</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">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="o">||</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="n">i</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">j</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">java</span><span class="p">.</span><span class="na">lang</span><span class="p">.</span><span class="na">IndexOutOfBoundsException</span><span class="p">()</span>
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<a id="__codelineno-11-59" name="__codelineno-11-59" href="#__codelineno-11-59"></a><span class="w"> </span><span class="c1">// 在无向图中，邻接矩阵关于主对角线对称，即满足 (i, j) == (j, i)</span>
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<a id="__codelineno-11-60" name="__codelineno-11-60" href="#__codelineno-11-60"></a><span class="w"> </span><span class="n">adjMat</span><span class="o">[</span><span class="n">i</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="m">1</span><span class="p">;</span>
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<a id="__codelineno-11-61" name="__codelineno-11-61" href="#__codelineno-11-61"></a><span class="w"> </span><span class="n">adjMat</span><span class="o">[</span><span class="n">j</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="m">1</span><span class="p">;</span>
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<a id="__codelineno-11-62" name="__codelineno-11-62" href="#__codelineno-11-62"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-11-63" name="__codelineno-11-63" href="#__codelineno-11-63"></a>
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<a id="__codelineno-11-64" name="__codelineno-11-64" href="#__codelineno-11-64"></a><span class="w"> </span><span class="cm">/* 删除边 */</span>
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<a id="__codelineno-11-65" name="__codelineno-11-65" href="#__codelineno-11-65"></a><span class="w"> </span><span class="c1">// 参数 i, j 对应 vertices 元素索引</span>
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<a id="__codelineno-11-66" name="__codelineno-11-66" href="#__codelineno-11-66"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">removeEdge</span><span class="p">(</span><span class="n">i</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">j</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>
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<a id="__codelineno-11-67" name="__codelineno-11-67" href="#__codelineno-11-67"></a><span class="w"> </span><span class="c1">// 索引越界与相等处理</span>
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<a id="__codelineno-11-68" name="__codelineno-11-68" href="#__codelineno-11-68"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</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="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">j</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">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="o">||</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="n">i</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">j</span><span class="p">)</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">java</span><span class="p">.</span><span class="na">lang</span><span class="p">.</span><span class="na">IndexOutOfBoundsException</span><span class="p">()</span>
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<a id="__codelineno-11-69" name="__codelineno-11-69" href="#__codelineno-11-69"></a><span class="w"> </span><span class="n">adjMat</span><span class="o">[</span><span class="n">i</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="m">0</span><span class="p">;</span>
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||||
<a id="__codelineno-11-70" name="__codelineno-11-70" href="#__codelineno-11-70"></a><span class="w"> </span><span class="n">adjMat</span><span class="o">[</span><span class="n">j</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="m">0</span><span class="p">;</span>
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<a id="__codelineno-11-71" name="__codelineno-11-71" href="#__codelineno-11-71"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-11-72" name="__codelineno-11-72" href="#__codelineno-11-72"></a>
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<a id="__codelineno-11-73" name="__codelineno-11-73" href="#__codelineno-11-73"></a><span class="w"> </span><span class="cm">/* 打印邻接矩阵 */</span>
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<a id="__codelineno-11-74" name="__codelineno-11-74" href="#__codelineno-11-74"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">print</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-11-75" name="__codelineno-11-75" href="#__codelineno-11-75"></a><span class="w"> </span><span class="n">print</span><span class="p">(</span><span class="s">"顶点列表 = "</span><span class="p">)</span>
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<a id="__codelineno-11-76" name="__codelineno-11-76" href="#__codelineno-11-76"></a><span class="w"> </span><span class="n">println</span><span class="p">(</span><span class="n">vertices</span><span class="p">);</span>
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<a id="__codelineno-11-77" name="__codelineno-11-77" href="#__codelineno-11-77"></a><span class="w"> </span><span class="n">println</span><span class="p">(</span><span class="s">"邻接矩阵 ="</span><span class="p">);</span>
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<a id="__codelineno-11-78" name="__codelineno-11-78" href="#__codelineno-11-78"></a><span class="w"> </span><span class="n">printMatrix</span><span class="p">(</span><span class="n">adjMat</span><span class="p">)</span>
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<a id="__codelineno-11-79" name="__codelineno-11-79" href="#__codelineno-11-79"></a><span class="w"> </span><span class="p">}</span>
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||||
<a id="__codelineno-11-80" name="__codelineno-11-80" href="#__codelineno-11-80"></a><span class="p">}</span>
|
||||
<a id="__codelineno-11-43" name="__codelineno-11-43" href="#__codelineno-11-43"></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>
|
||||
<a id="__codelineno-11-44" name="__codelineno-11-44" href="#__codelineno-11-44"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">()</span>
|
||||
<a id="__codelineno-11-45" name="__codelineno-11-45" href="#__codelineno-11-45"></a><span class="w"> </span><span class="c1">// 在顶点列表中移除索引 index 的顶点</span>
|
||||
<a id="__codelineno-11-46" name="__codelineno-11-46" href="#__codelineno-11-46"></a><span class="w"> </span><span class="n">vertices</span><span class="p">.</span><span class="na">removeAt</span><span class="p">(</span><span class="n">index</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-47" name="__codelineno-11-47" href="#__codelineno-11-47"></a><span class="w"> </span><span class="c1">// 在邻接矩阵中删除索引 index 的行</span>
|
||||
<a id="__codelineno-11-48" name="__codelineno-11-48" href="#__codelineno-11-48"></a><span class="w"> </span><span class="n">adjMat</span><span class="p">.</span><span class="na">removeAt</span><span class="p">(</span><span class="n">index</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-49" name="__codelineno-11-49" href="#__codelineno-11-49"></a><span class="w"> </span><span class="c1">// 在邻接矩阵中删除索引 index 的列</span>
|
||||
<a id="__codelineno-11-50" name="__codelineno-11-50" href="#__codelineno-11-50"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">row</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">adjMat</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-51" name="__codelineno-11-51" href="#__codelineno-11-51"></a><span class="w"> </span><span class="n">row</span><span class="p">.</span><span class="na">removeAt</span><span class="p">(</span><span class="n">index</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-52" name="__codelineno-11-52" href="#__codelineno-11-52"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-53" name="__codelineno-11-53" href="#__codelineno-11-53"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-54" name="__codelineno-11-54" href="#__codelineno-11-54"></a>
|
||||
<a id="__codelineno-11-55" name="__codelineno-11-55" href="#__codelineno-11-55"></a><span class="w"> </span><span class="cm">/* 添加边 */</span>
|
||||
<a id="__codelineno-11-56" name="__codelineno-11-56" href="#__codelineno-11-56"></a><span class="w"> </span><span class="c1">// 参数 i, j 对应 vertices 元素索引</span>
|
||||
<a id="__codelineno-11-57" name="__codelineno-11-57" href="#__codelineno-11-57"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">addEdge</span><span class="p">(</span><span class="n">i</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">j</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-11-58" name="__codelineno-11-58" href="#__codelineno-11-58"></a><span class="w"> </span><span class="c1">// 索引越界与相等处理</span>
|
||||
<a id="__codelineno-11-59" name="__codelineno-11-59" href="#__codelineno-11-59"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</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="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">j</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">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="o">||</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="n">i</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">j</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-60" name="__codelineno-11-60" href="#__codelineno-11-60"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">()</span>
|
||||
<a id="__codelineno-11-61" name="__codelineno-11-61" href="#__codelineno-11-61"></a><span class="w"> </span><span class="c1">// 在无向图中，邻接矩阵关于主对角线对称，即满足 (i, j) == (j, i)</span>
|
||||
<a id="__codelineno-11-62" name="__codelineno-11-62" href="#__codelineno-11-62"></a><span class="w"> </span><span class="n">adjMat</span><span class="o">[</span><span class="n">i</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="m">1</span><span class="p">;</span>
|
||||
<a id="__codelineno-11-63" name="__codelineno-11-63" href="#__codelineno-11-63"></a><span class="w"> </span><span class="n">adjMat</span><span class="o">[</span><span class="n">j</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="m">1</span><span class="p">;</span>
|
||||
<a id="__codelineno-11-64" name="__codelineno-11-64" href="#__codelineno-11-64"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-65" name="__codelineno-11-65" href="#__codelineno-11-65"></a>
|
||||
<a id="__codelineno-11-66" name="__codelineno-11-66" href="#__codelineno-11-66"></a><span class="w"> </span><span class="cm">/* 删除边 */</span>
|
||||
<a id="__codelineno-11-67" name="__codelineno-11-67" href="#__codelineno-11-67"></a><span class="w"> </span><span class="c1">// 参数 i, j 对应 vertices 元素索引</span>
|
||||
<a id="__codelineno-11-68" name="__codelineno-11-68" href="#__codelineno-11-68"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">removeEdge</span><span class="p">(</span><span class="n">i</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">j</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-11-69" name="__codelineno-11-69" href="#__codelineno-11-69"></a><span class="w"> </span><span class="c1">// 索引越界与相等处理</span>
|
||||
<a id="__codelineno-11-70" name="__codelineno-11-70" href="#__codelineno-11-70"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</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="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">j</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">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="o">||</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="n">i</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">j</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-71" name="__codelineno-11-71" href="#__codelineno-11-71"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">()</span>
|
||||
<a id="__codelineno-11-72" name="__codelineno-11-72" href="#__codelineno-11-72"></a><span class="w"> </span><span class="n">adjMat</span><span class="o">[</span><span class="n">i</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="m">0</span><span class="p">;</span>
|
||||
<a id="__codelineno-11-73" name="__codelineno-11-73" href="#__codelineno-11-73"></a><span class="w"> </span><span class="n">adjMat</span><span class="o">[</span><span class="n">j</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="m">0</span><span class="p">;</span>
|
||||
<a id="__codelineno-11-74" name="__codelineno-11-74" href="#__codelineno-11-74"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-75" name="__codelineno-11-75" href="#__codelineno-11-75"></a>
|
||||
<a id="__codelineno-11-76" name="__codelineno-11-76" href="#__codelineno-11-76"></a><span class="w"> </span><span class="cm">/* 打印邻接矩阵 */</span>
|
||||
<a id="__codelineno-11-77" name="__codelineno-11-77" href="#__codelineno-11-77"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">print</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-78" name="__codelineno-11-78" href="#__codelineno-11-78"></a><span class="w"> </span><span class="n">print</span><span class="p">(</span><span class="s">"顶点列表 = "</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-79" name="__codelineno-11-79" href="#__codelineno-11-79"></a><span class="w"> </span><span class="n">println</span><span class="p">(</span><span class="n">vertices</span><span class="p">);</span>
|
||||
<a id="__codelineno-11-80" name="__codelineno-11-80" href="#__codelineno-11-80"></a><span class="w"> </span><span class="n">println</span><span class="p">(</span><span class="s">"邻接矩阵 ="</span><span class="p">);</span>
|
||||
<a id="__codelineno-11-81" name="__codelineno-11-81" href="#__codelineno-11-81"></a><span class="w"> </span><span class="n">printMatrix</span><span class="p">(</span><span class="n">adjMat</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-82" name="__codelineno-11-82" href="#__codelineno-11-82"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-83" name="__codelineno-11-83" href="#__codelineno-11-83"></a><span class="p">}</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
@@ -4206,9 +4209,9 @@
|
||||
<div class="highlight"><span class="filename">graph_adjacency_list.kt</span><pre><span></span><code><a id="__codelineno-25-1" name="__codelineno-25-1" href="#__codelineno-25-1"></a><span class="cm">/* 基于邻接表实现的无向图类 */</span>
|
||||
<a id="__codelineno-25-2" name="__codelineno-25-2" href="#__codelineno-25-2"></a><span class="kd">class</span><span class="w"> </span><span class="nc">GraphAdjList</span><span class="p">(</span><span class="n">edges</span><span class="p">:</span><span class="w"> </span><span class="n">Array</span><span class="o"><</span><span class="n">Array</span><span class="o"><</span><span class="n">Vertex?></span><span class="o">></span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-3" name="__codelineno-25-3" href="#__codelineno-25-3"></a><span class="w"> </span><span class="c1">// 邻接表，key：顶点，value：该顶点的所有邻接顶点</span>
|
||||
<a id="__codelineno-25-4" name="__codelineno-25-4" href="#__codelineno-25-4"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">adjList</span><span class="p">:</span><span class="w"> </span><span class="n">MutableMap</span><span class="o"><</span><span class="n">Vertex</span><span class="p">,</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="n">Vertex</span><span class="o">>></span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">HashMap</span><span class="p">()</span>
|
||||
<a id="__codelineno-25-4" name="__codelineno-25-4" href="#__codelineno-25-4"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">adjList</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">HashMap</span><span class="o"><</span><span class="n">Vertex</span><span class="p">,</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="n">Vertex</span><span class="o">>></span><span class="p">()</span>
|
||||
<a id="__codelineno-25-5" name="__codelineno-25-5" href="#__codelineno-25-5"></a>
|
||||
<a id="__codelineno-25-6" name="__codelineno-25-6" href="#__codelineno-25-6"></a><span class="w"> </span><span class="cm">/* 构造函数 */</span>
|
||||
<a id="__codelineno-25-6" name="__codelineno-25-6" href="#__codelineno-25-6"></a><span class="w"> </span><span class="cm">/* 构造方法 */</span>
|
||||
<a id="__codelineno-25-7" name="__codelineno-25-7" href="#__codelineno-25-7"></a><span class="w"> </span><span class="k">init</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-8" name="__codelineno-25-8" href="#__codelineno-25-8"></a><span class="w"> </span><span class="c1">// 添加所有顶点和边</span>
|
||||
<a id="__codelineno-25-9" name="__codelineno-25-9" href="#__codelineno-25-9"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">edge</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">edges</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
@@ -4265,7 +4268,7 @@
|
||||
<a id="__codelineno-25-60" name="__codelineno-25-60" href="#__codelineno-25-60"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">print</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-61" name="__codelineno-25-61" href="#__codelineno-25-61"></a><span class="w"> </span><span class="n">println</span><span class="p">(</span><span class="s">"邻接表 ="</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-62" name="__codelineno-25-62" href="#__codelineno-25-62"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">adjList</span><span class="p">.</span><span class="na">entries</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-63" name="__codelineno-25-63" href="#__codelineno-25-63"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">tmp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-25-63" name="__codelineno-25-63" href="#__codelineno-25-63"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">tmp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-25-64" name="__codelineno-25-64" href="#__codelineno-25-64"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">vertex</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">pair</span><span class="p">.</span><span class="na">value</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-65" name="__codelineno-25-65" href="#__codelineno-25-65"></a><span class="w"> </span><span class="n">tmp</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">vertex</span><span class="p">.</span><span class="na">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-66" name="__codelineno-25-66" href="#__codelineno-25-66"></a><span class="w"> </span><span class="p">}</span>
|
||||
|
||||
@@ -2558,24 +2558,24 @@
|
||||
<div class="tabbed-block">
|
||||
<div class="highlight"><span class="filename">graph_bfs.kt</span><pre><span></span><code><a id="__codelineno-11-1" name="__codelineno-11-1" href="#__codelineno-11-1"></a><span class="cm">/* 广度优先遍历 */</span>
|
||||
<a id="__codelineno-11-2" name="__codelineno-11-2" href="#__codelineno-11-2"></a><span class="c1">// 使用邻接表来表示图，以便获取指定顶点的所有邻接顶点</span>
|
||||
<a id="__codelineno-11-3" name="__codelineno-11-3" href="#__codelineno-11-3"></a><span class="kd">fun</span><span class="w"> </span><span class="nf">graphBFS</span><span class="p">(</span><span class="n">graph</span><span class="p">:</span><span class="w"> </span><span class="n">GraphAdjList</span><span class="p">,</span><span class="w"> </span><span class="n">startVet</span><span class="p">:</span><span class="w"> </span><span class="n">Vertex</span><span class="p">):</span><span class="w"> </span><span class="n">List</span><span class="o"><</span><span class="n">Vertex</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-3" name="__codelineno-11-3" href="#__codelineno-11-3"></a><span class="kd">fun</span><span class="w"> </span><span class="nf">graphBFS</span><span class="p">(</span><span class="n">graph</span><span class="p">:</span><span class="w"> </span><span class="n">GraphAdjList</span><span class="p">,</span><span class="w"> </span><span class="n">startVet</span><span class="p">:</span><span class="w"> </span><span class="n">Vertex</span><span class="p">):</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="n">Vertex?></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-4" name="__codelineno-11-4" href="#__codelineno-11-4"></a><span class="w"> </span><span class="c1">// 顶点遍历序列</span>
|
||||
<a id="__codelineno-11-5" name="__codelineno-11-5" href="#__codelineno-11-5"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">res</span><span class="p">:</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="n">Vertex</span><span class="o">></span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="p">()</span>
|
||||
<a id="__codelineno-11-5" name="__codelineno-11-5" href="#__codelineno-11-5"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">res</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="n">Vertex?></span><span class="p">()</span>
|
||||
<a id="__codelineno-11-6" name="__codelineno-11-6" href="#__codelineno-11-6"></a><span class="w"> </span><span class="c1">// 哈希表，用于记录已被访问过的顶点</span>
|
||||
<a id="__codelineno-11-7" name="__codelineno-11-7" href="#__codelineno-11-7"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">visited</span><span class="p">:</span><span class="w"> </span><span class="n">MutableSet</span><span class="o"><</span><span class="n">Vertex</span><span class="o">></span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">HashSet</span><span class="p">()</span>
|
||||
<a id="__codelineno-11-7" name="__codelineno-11-7" href="#__codelineno-11-7"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">visited</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">HashSet</span><span class="o"><</span><span class="n">Vertex</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-11-8" name="__codelineno-11-8" href="#__codelineno-11-8"></a><span class="w"> </span><span class="n">visited</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">startVet</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-9" name="__codelineno-11-9" href="#__codelineno-11-9"></a><span class="w"> </span><span class="c1">// 队列用于实现 BFS</span>
|
||||
<a id="__codelineno-11-10" name="__codelineno-11-10" href="#__codelineno-11-10"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">que</span><span class="p">:</span><span class="w"> </span><span class="n">Queue</span><span class="o"><</span><span class="n">Vertex</span><span class="o">></span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">LinkedList</span><span class="p">()</span>
|
||||
<a id="__codelineno-11-10" name="__codelineno-11-10" href="#__codelineno-11-10"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">que</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">LinkedList</span><span class="o"><</span><span class="n">Vertex</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-11-11" name="__codelineno-11-11" href="#__codelineno-11-11"></a><span class="w"> </span><span class="n">que</span><span class="p">.</span><span class="na">offer</span><span class="p">(</span><span class="n">startVet</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-12" name="__codelineno-11-12" href="#__codelineno-11-12"></a><span class="w"> </span><span class="c1">// 以顶点 vet 为起点，循环直至访问完所有顶点</span>
|
||||
<a id="__codelineno-11-13" name="__codelineno-11-13" href="#__codelineno-11-13"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">que</span><span class="p">.</span><span class="na">isEmpty</span><span class="p">())</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-14" name="__codelineno-11-14" href="#__codelineno-11-14"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">vet</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">que</span><span class="p">.</span><span class="na">poll</span><span class="p">()</span><span class="w"> </span><span class="c1">// 队首顶点出队</span>
|
||||
<a id="__codelineno-11-15" name="__codelineno-11-15" href="#__codelineno-11-15"></a><span class="w"> </span><span class="n">res</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">vet</span><span class="p">)</span><span class="w"> </span><span class="c1">// 记录访问顶点</span>
|
||||
<a id="__codelineno-11-15" name="__codelineno-11-15" href="#__codelineno-11-15"></a><span class="w"> </span><span class="n">res</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">vet</span><span class="p">)</span><span class="w"> </span><span class="c1">// 记录访问顶点</span>
|
||||
<a id="__codelineno-11-16" name="__codelineno-11-16" href="#__codelineno-11-16"></a><span class="w"> </span><span class="c1">// 遍历该顶点的所有邻接顶点</span>
|
||||
<a id="__codelineno-11-17" name="__codelineno-11-17" href="#__codelineno-11-17"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">adjVet</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">graph</span><span class="p">.</span><span class="na">adjList</span><span class="o">[</span><span class="n">vet</span><span class="o">]!!</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-18" name="__codelineno-11-18" href="#__codelineno-11-18"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">visited</span><span class="p">.</span><span class="na">contains</span><span class="p">(</span><span class="n">adjVet</span><span class="p">))</span><span class="w"> </span><span class="k">continue</span><span class="w"> </span><span class="c1">// 跳过已被访问的顶点</span>
|
||||
<a id="__codelineno-11-19" name="__codelineno-11-19" href="#__codelineno-11-19"></a>
|
||||
<a id="__codelineno-11-20" name="__codelineno-11-20" href="#__codelineno-11-20"></a><span class="w"> </span><span class="n">que</span><span class="p">.</span><span class="na">offer</span><span class="p">(</span><span class="n">adjVet</span><span class="p">)</span><span class="w"> </span><span class="c1">// 只入队未访问的顶点</span>
|
||||
<a id="__codelineno-11-18" name="__codelineno-11-18" href="#__codelineno-11-18"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">visited</span><span class="p">.</span><span class="na">contains</span><span class="p">(</span><span class="n">adjVet</span><span class="p">))</span>
|
||||
<a id="__codelineno-11-19" name="__codelineno-11-19" href="#__codelineno-11-19"></a><span class="w"> </span><span class="k">continue</span><span class="w"> </span><span class="c1">// 跳过已被访问的顶点</span>
|
||||
<a id="__codelineno-11-20" name="__codelineno-11-20" href="#__codelineno-11-20"></a><span class="w"> </span><span class="n">que</span><span class="p">.</span><span class="na">offer</span><span class="p">(</span><span class="n">adjVet</span><span class="p">)</span><span class="w"> </span><span class="c1">// 只入队未访问的顶点</span>
|
||||
<a id="__codelineno-11-21" name="__codelineno-11-21" href="#__codelineno-11-21"></a><span class="w"> </span><span class="n">visited</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">adjVet</span><span class="p">)</span><span class="w"> </span><span class="c1">// 标记该顶点已被访问</span>
|
||||
<a id="__codelineno-11-22" name="__codelineno-11-22" href="#__codelineno-11-22"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-23" name="__codelineno-11-23" href="#__codelineno-11-23"></a><span class="w"> </span><span class="p">}</span>
|
||||
@@ -2977,29 +2977,27 @@
|
||||
<a id="__codelineno-25-5" name="__codelineno-25-5" href="#__codelineno-25-5"></a><span class="w"> </span><span class="n">res</span><span class="p">:</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="n">Vertex?></span><span class="p">,</span>
|
||||
<a id="__codelineno-25-6" name="__codelineno-25-6" href="#__codelineno-25-6"></a><span class="w"> </span><span class="n">vet</span><span class="p">:</span><span class="w"> </span><span class="n">Vertex?</span>
|
||||
<a id="__codelineno-25-7" name="__codelineno-25-7" href="#__codelineno-25-7"></a><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-8" name="__codelineno-25-8" href="#__codelineno-25-8"></a><span class="w"> </span><span class="n">res</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">vet</span><span class="p">)</span><span class="w"> </span><span class="c1">// 记录访问顶点</span>
|
||||
<a id="__codelineno-25-8" name="__codelineno-25-8" href="#__codelineno-25-8"></a><span class="w"> </span><span class="n">res</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">vet</span><span class="p">)</span><span class="w"> </span><span class="c1">// 记录访问顶点</span>
|
||||
<a id="__codelineno-25-9" name="__codelineno-25-9" href="#__codelineno-25-9"></a><span class="w"> </span><span class="n">visited</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">vet</span><span class="p">)</span><span class="w"> </span><span class="c1">// 标记该顶点已被访问</span>
|
||||
<a id="__codelineno-25-10" name="__codelineno-25-10" href="#__codelineno-25-10"></a><span class="w"> </span><span class="c1">// 遍历该顶点的所有邻接顶点</span>
|
||||
<a id="__codelineno-25-11" name="__codelineno-25-11" href="#__codelineno-25-11"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">adjVet</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">graph</span><span class="p">.</span><span class="na">adjList</span><span class="o">[</span><span class="n">vet</span><span class="o">]!!</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-12" name="__codelineno-25-12" href="#__codelineno-25-12"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">visited</span><span class="p">.</span><span class="na">contains</span><span class="p">(</span><span class="n">adjVet</span><span class="p">))</span><span class="w"> </span><span class="k">continue</span><span class="w"> </span><span class="c1">// 跳过已被访问的顶点</span>
|
||||
<a id="__codelineno-25-13" name="__codelineno-25-13" href="#__codelineno-25-13"></a><span class="w"> </span><span class="c1">// 递归访问邻接顶点</span>
|
||||
<a id="__codelineno-25-14" name="__codelineno-25-14" href="#__codelineno-25-14"></a><span class="w"> </span><span class="n">dfs</span><span class="p">(</span><span class="n">graph</span><span class="p">,</span><span class="w"> </span><span class="n">visited</span><span class="p">,</span><span class="w"> </span><span class="n">res</span><span class="p">,</span><span class="w"> </span><span class="n">adjVet</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-15" name="__codelineno-25-15" href="#__codelineno-25-15"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-16" name="__codelineno-25-16" href="#__codelineno-25-16"></a><span class="p">}</span>
|
||||
<a id="__codelineno-25-17" name="__codelineno-25-17" href="#__codelineno-25-17"></a>
|
||||
<a id="__codelineno-25-18" name="__codelineno-25-18" href="#__codelineno-25-18"></a><span class="cm">/* 深度优先遍历 */</span>
|
||||
<a id="__codelineno-25-19" name="__codelineno-25-19" href="#__codelineno-25-19"></a><span class="c1">// 使用邻接表来表示图，以便获取指定顶点的所有邻接顶点</span>
|
||||
<a id="__codelineno-25-20" name="__codelineno-25-20" href="#__codelineno-25-20"></a><span class="kd">fun</span><span class="w"> </span><span class="nf">graphDFS</span><span class="p">(</span>
|
||||
<a id="__codelineno-25-21" name="__codelineno-25-21" href="#__codelineno-25-21"></a><span class="w"> </span><span class="n">graph</span><span class="p">:</span><span class="w"> </span><span class="n">GraphAdjList</span><span class="p">,</span>
|
||||
<a id="__codelineno-25-22" name="__codelineno-25-22" href="#__codelineno-25-22"></a><span class="w"> </span><span class="n">startVet</span><span class="p">:</span><span class="w"> </span><span class="n">Vertex?</span>
|
||||
<a id="__codelineno-25-23" name="__codelineno-25-23" href="#__codelineno-25-23"></a><span class="p">):</span><span class="w"> </span><span class="n">List</span><span class="o"><</span><span class="n">Vertex?></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-24" name="__codelineno-25-24" href="#__codelineno-25-24"></a><span class="w"> </span><span class="c1">// 顶点遍历序列</span>
|
||||
<a id="__codelineno-25-25" name="__codelineno-25-25" href="#__codelineno-25-25"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">res</span><span class="p">:</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="n">Vertex?></span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="p">()</span>
|
||||
<a id="__codelineno-25-26" name="__codelineno-25-26" href="#__codelineno-25-26"></a><span class="w"> </span><span class="c1">// 哈希表，用于记录已被访问过的顶点</span>
|
||||
<a id="__codelineno-25-27" name="__codelineno-25-27" href="#__codelineno-25-27"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">visited</span><span class="p">:</span><span class="w"> </span><span class="n">MutableSet</span><span class="o"><</span><span class="n">Vertex?></span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">HashSet</span><span class="p">()</span>
|
||||
<a id="__codelineno-25-28" name="__codelineno-25-28" href="#__codelineno-25-28"></a><span class="w"> </span><span class="n">dfs</span><span class="p">(</span><span class="n">graph</span><span class="p">,</span><span class="w"> </span><span class="n">visited</span><span class="p">,</span><span class="w"> </span><span class="n">res</span><span class="p">,</span><span class="w"> </span><span class="n">startVet</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-29" name="__codelineno-25-29" href="#__codelineno-25-29"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">res</span>
|
||||
<a id="__codelineno-25-30" name="__codelineno-25-30" href="#__codelineno-25-30"></a><span class="p">}</span>
|
||||
<a id="__codelineno-25-12" name="__codelineno-25-12" href="#__codelineno-25-12"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">visited</span><span class="p">.</span><span class="na">contains</span><span class="p">(</span><span class="n">adjVet</span><span class="p">))</span>
|
||||
<a id="__codelineno-25-13" name="__codelineno-25-13" href="#__codelineno-25-13"></a><span class="w"> </span><span class="k">continue</span><span class="w"> </span><span class="c1">// 跳过已被访问的顶点</span>
|
||||
<a id="__codelineno-25-14" name="__codelineno-25-14" href="#__codelineno-25-14"></a><span class="w"> </span><span class="c1">// 递归访问邻接顶点</span>
|
||||
<a id="__codelineno-25-15" name="__codelineno-25-15" href="#__codelineno-25-15"></a><span class="w"> </span><span class="n">dfs</span><span class="p">(</span><span class="n">graph</span><span class="p">,</span><span class="w"> </span><span class="n">visited</span><span class="p">,</span><span class="w"> </span><span class="n">res</span><span class="p">,</span><span class="w"> </span><span class="n">adjVet</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-16" name="__codelineno-25-16" href="#__codelineno-25-16"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-17" name="__codelineno-25-17" href="#__codelineno-25-17"></a><span class="p">}</span>
|
||||
<a id="__codelineno-25-18" name="__codelineno-25-18" href="#__codelineno-25-18"></a>
|
||||
<a id="__codelineno-25-19" name="__codelineno-25-19" href="#__codelineno-25-19"></a><span class="cm">/* 深度优先遍历 */</span>
|
||||
<a id="__codelineno-25-20" name="__codelineno-25-20" href="#__codelineno-25-20"></a><span class="c1">// 使用邻接表来表示图，以便获取指定顶点的所有邻接顶点</span>
|
||||
<a id="__codelineno-25-21" name="__codelineno-25-21" href="#__codelineno-25-21"></a><span class="kd">fun</span><span class="w"> </span><span class="nf">graphDFS</span><span class="p">(</span><span class="n">graph</span><span class="p">:</span><span class="w"> </span><span class="n">GraphAdjList</span><span class="p">,</span><span class="w"> </span><span class="n">startVet</span><span class="p">:</span><span class="w"> </span><span class="n">Vertex?)</span><span class="p">:</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="n">Vertex?></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-22" name="__codelineno-25-22" href="#__codelineno-25-22"></a><span class="w"> </span><span class="c1">// 顶点遍历序列</span>
|
||||
<a id="__codelineno-25-23" name="__codelineno-25-23" href="#__codelineno-25-23"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">res</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="n">Vertex?></span><span class="p">()</span>
|
||||
<a id="__codelineno-25-24" name="__codelineno-25-24" href="#__codelineno-25-24"></a><span class="w"> </span><span class="c1">// 哈希表，用于记录已被访问过的顶点</span>
|
||||
<a id="__codelineno-25-25" name="__codelineno-25-25" href="#__codelineno-25-25"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">visited</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">HashSet</span><span class="o"><</span><span class="n">Vertex?></span><span class="p">()</span>
|
||||
<a id="__codelineno-25-26" name="__codelineno-25-26" href="#__codelineno-25-26"></a><span class="w"> </span><span class="n">dfs</span><span class="p">(</span><span class="n">graph</span><span class="p">,</span><span class="w"> </span><span class="n">visited</span><span class="p">,</span><span class="w"> </span><span class="n">res</span><span class="p">,</span><span class="w"> </span><span class="n">startVet</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-27" name="__codelineno-25-27" href="#__codelineno-25-27"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">res</span>
|
||||
<a id="__codelineno-25-28" name="__codelineno-25-28" href="#__codelineno-25-28"></a><span class="p">}</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
|
||||
@@ -3248,37 +3248,34 @@
|
||||
<a id="__codelineno-9-89" name="__codelineno-9-89" href="#__codelineno-9-89"></a><span class="w"> </span><span class="c1">// 遍历桶，若遇到指定 key ，则更新对应 val 并返回</span>
|
||||
<a id="__codelineno-9-90" name="__codelineno-9-90" href="#__codelineno-9-90"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">bucket</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-9-91" name="__codelineno-9-91" href="#__codelineno-9-91"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">pair</span><span class="p">.</span><span class="n">key</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">key</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-9-92" name="__codelineno-9-92" href="#__codelineno-9-92"></a><span class="w"> </span><span class="n">pair</span><span class="p">.</span><span class="n">val</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">val</span><span class="p">.</span><span class="n">clone</span><span class="p">();</span>
|
||||
<a id="__codelineno-9-92" name="__codelineno-9-92" href="#__codelineno-9-92"></a><span class="w"> </span><span class="n">pair</span><span class="p">.</span><span class="n">val</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">val</span><span class="p">;</span>
|
||||
<a id="__codelineno-9-93" name="__codelineno-9-93" href="#__codelineno-9-93"></a><span class="w"> </span><span class="k">return</span><span class="p">;</span>
|
||||
<a id="__codelineno-9-94" name="__codelineno-9-94" href="#__codelineno-9-94"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-9-95" name="__codelineno-9-95" href="#__codelineno-9-95"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-9-96" name="__codelineno-9-96" href="#__codelineno-9-96"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">bucket</span><span class="w"> </span><span class="o">=</span><span class="w"> </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="n">buckets</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||||
<a id="__codelineno-9-97" name="__codelineno-9-97" href="#__codelineno-9-97"></a>
|
||||
<a id="__codelineno-9-98" name="__codelineno-9-98" href="#__codelineno-9-98"></a><span class="w"> </span><span class="c1">// 若无该 key ，则将键值对添加至尾部</span>
|
||||
<a id="__codelineno-9-99" name="__codelineno-9-99" href="#__codelineno-9-99"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">pair</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Pair</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-9-100" name="__codelineno-9-100" href="#__codelineno-9-100"></a><span class="w"> </span><span class="n">key</span><span class="p">,</span>
|
||||
<a id="__codelineno-9-101" name="__codelineno-9-101" href="#__codelineno-9-101"></a><span class="w"> </span><span class="n">val</span>: <span class="nc">val</span><span class="p">.</span><span class="n">clone</span><span class="p">(),</span>
|
||||
<a id="__codelineno-9-102" name="__codelineno-9-102" href="#__codelineno-9-102"></a><span class="w"> </span><span class="p">};</span>
|
||||
<a id="__codelineno-9-103" name="__codelineno-9-103" href="#__codelineno-9-103"></a><span class="w"> </span><span class="n">bucket</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="n">pair</span><span class="p">);</span>
|
||||
<a id="__codelineno-9-104" name="__codelineno-9-104" href="#__codelineno-9-104"></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-9-105" name="__codelineno-9-105" href="#__codelineno-9-105"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-9-106" name="__codelineno-9-106" href="#__codelineno-9-106"></a>
|
||||
<a id="__codelineno-9-107" name="__codelineno-9-107" href="#__codelineno-9-107"></a><span class="w"> </span><span class="cm">/* 查询操作 */</span>
|
||||
<a id="__codelineno-9-108" name="__codelineno-9-108" href="#__codelineno-9-108"></a><span class="w"> </span><span class="k">fn</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">key</span>: <span class="kt">i32</span><span class="p">)</span><span class="w"> </span>-> <span class="nb">Option</span><span class="o"><&</span><span class="kt">str</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-9-109" name="__codelineno-9-109" href="#__codelineno-9-109"></a><span class="w"> </span><span class="kd">let</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">hash_func</span><span class="p">(</span><span class="n">key</span><span class="p">);</span>
|
||||
<a id="__codelineno-9-110" name="__codelineno-9-110" href="#__codelineno-9-110"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">bucket</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">&</span><span class="bp">self</span><span class="p">.</span><span class="n">buckets</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||||
<a id="__codelineno-9-111" name="__codelineno-9-111" href="#__codelineno-9-111"></a>
|
||||
<a id="__codelineno-9-112" name="__codelineno-9-112" href="#__codelineno-9-112"></a><span class="w"> </span><span class="c1">// 遍历桶，若找到 key ，则返回对应 val</span>
|
||||
<a id="__codelineno-9-113" name="__codelineno-9-113" href="#__codelineno-9-113"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">bucket</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-9-114" name="__codelineno-9-114" href="#__codelineno-9-114"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">pair</span><span class="p">.</span><span class="n">key</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">key</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-9-115" name="__codelineno-9-115" href="#__codelineno-9-115"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nb">Some</span><span class="p">(</span><span class="o">&</span><span class="n">pair</span><span class="p">.</span><span class="n">val</span><span class="p">);</span>
|
||||
<a id="__codelineno-9-116" name="__codelineno-9-116" href="#__codelineno-9-116"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-9-117" name="__codelineno-9-117" href="#__codelineno-9-117"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-9-118" name="__codelineno-9-118" href="#__codelineno-9-118"></a>
|
||||
<a id="__codelineno-9-119" name="__codelineno-9-119" href="#__codelineno-9-119"></a><span class="w"> </span><span class="c1">// 若未找到 key ，则返回 None</span>
|
||||
<a id="__codelineno-9-120" name="__codelineno-9-120" href="#__codelineno-9-120"></a><span class="w"> </span><span class="nb">None</span>
|
||||
<a id="__codelineno-9-121" name="__codelineno-9-121" href="#__codelineno-9-121"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-9-122" name="__codelineno-9-122" href="#__codelineno-9-122"></a><span class="p">}</span>
|
||||
<a id="__codelineno-9-99" name="__codelineno-9-99" href="#__codelineno-9-99"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">pair</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Pair</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="n">key</span><span class="p">,</span><span class="w"> </span><span class="n">val</span><span class="w"> </span><span class="p">};</span>
|
||||
<a id="__codelineno-9-100" name="__codelineno-9-100" href="#__codelineno-9-100"></a><span class="w"> </span><span class="n">bucket</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="n">pair</span><span class="p">);</span>
|
||||
<a id="__codelineno-9-101" name="__codelineno-9-101" href="#__codelineno-9-101"></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-9-102" name="__codelineno-9-102" href="#__codelineno-9-102"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-9-103" name="__codelineno-9-103" href="#__codelineno-9-103"></a>
|
||||
<a id="__codelineno-9-104" name="__codelineno-9-104" href="#__codelineno-9-104"></a><span class="w"> </span><span class="cm">/* 查询操作 */</span>
|
||||
<a id="__codelineno-9-105" name="__codelineno-9-105" href="#__codelineno-9-105"></a><span class="w"> </span><span class="k">fn</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">key</span>: <span class="kt">i32</span><span class="p">)</span><span class="w"> </span>-> <span class="nb">Option</span><span class="o"><&</span><span class="kt">str</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-9-106" name="__codelineno-9-106" href="#__codelineno-9-106"></a><span class="w"> </span><span class="kd">let</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">hash_func</span><span class="p">(</span><span class="n">key</span><span class="p">);</span>
|
||||
<a id="__codelineno-9-107" name="__codelineno-9-107" href="#__codelineno-9-107"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">bucket</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">&</span><span class="bp">self</span><span class="p">.</span><span class="n">buckets</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
||||
<a id="__codelineno-9-108" name="__codelineno-9-108" href="#__codelineno-9-108"></a>
|
||||
<a id="__codelineno-9-109" name="__codelineno-9-109" href="#__codelineno-9-109"></a><span class="w"> </span><span class="c1">// 遍历桶，若找到 key ，则返回对应 val</span>
|
||||
<a id="__codelineno-9-110" name="__codelineno-9-110" href="#__codelineno-9-110"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">bucket</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-9-111" name="__codelineno-9-111" href="#__codelineno-9-111"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">pair</span><span class="p">.</span><span class="n">key</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">key</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-9-112" name="__codelineno-9-112" href="#__codelineno-9-112"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nb">Some</span><span class="p">(</span><span class="o">&</span><span class="n">pair</span><span class="p">.</span><span class="n">val</span><span class="p">);</span>
|
||||
<a id="__codelineno-9-113" name="__codelineno-9-113" href="#__codelineno-9-113"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-9-114" name="__codelineno-9-114" href="#__codelineno-9-114"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-9-115" name="__codelineno-9-115" href="#__codelineno-9-115"></a>
|
||||
<a id="__codelineno-9-116" name="__codelineno-9-116" href="#__codelineno-9-116"></a><span class="w"> </span><span class="c1">// 若未找到 key ，则返回 None</span>
|
||||
<a id="__codelineno-9-117" name="__codelineno-9-117" href="#__codelineno-9-117"></a><span class="w"> </span><span class="nb">None</span>
|
||||
<a id="__codelineno-9-118" name="__codelineno-9-118" href="#__codelineno-9-118"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-9-119" name="__codelineno-9-119" href="#__codelineno-9-119"></a><span class="p">}</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
@@ -3458,7 +3455,7 @@
|
||||
<a id="__codelineno-11-12" name="__codelineno-11-12" href="#__codelineno-11-12"></a><span class="w"> </span><span class="n">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">4</span>
|
||||
<a id="__codelineno-11-13" name="__codelineno-11-13" href="#__codelineno-11-13"></a><span class="w"> </span><span class="n">loadThres</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">2.0</span><span class="w"> </span><span class="o">/</span><span class="w"> </span><span class="m">3.0</span>
|
||||
<a id="__codelineno-11-14" name="__codelineno-11-14" href="#__codelineno-11-14"></a><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>
|
||||
<a id="__codelineno-11-15" name="__codelineno-11-15" href="#__codelineno-11-15"></a><span class="w"> </span><span class="n">buckets</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="p">(</span><span class="n">capacity</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-15" name="__codelineno-11-15" href="#__codelineno-11-15"></a><span class="w"> </span><span class="n">buckets</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="p">()</span>
|
||||
<a id="__codelineno-11-16" name="__codelineno-11-16" href="#__codelineno-11-16"></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">capacity</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-17" name="__codelineno-11-17" href="#__codelineno-11-17"></a><span class="w"> </span><span class="n">buckets</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">mutableListOf</span><span class="p">())</span>
|
||||
<a id="__codelineno-11-18" name="__codelineno-11-18" href="#__codelineno-11-18"></a><span class="w"> </span><span class="p">}</span>
|
||||
@@ -5052,125 +5049,130 @@
|
||||
<div class="tabbed-block">
|
||||
<div class="highlight"><span class="filename">hash_map_open_addressing.kt</span><pre><span></span><code><a id="__codelineno-25-1" name="__codelineno-25-1" href="#__codelineno-25-1"></a><span class="cm">/* 开放寻址哈希表 */</span>
|
||||
<a id="__codelineno-25-2" name="__codelineno-25-2" href="#__codelineno-25-2"></a><span class="kd">class</span><span class="w"> </span><span class="nc">HashMapOpenAddressing</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-3" name="__codelineno-25-3" href="#__codelineno-25-3"></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">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">// 键值对数量</span>
|
||||
<a id="__codelineno-25-4" name="__codelineno-25-4" href="#__codelineno-25-4"></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="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">4</span><span class="w"> </span><span class="c1">// 哈希表容量</span>
|
||||
<a id="__codelineno-25-5" name="__codelineno-25-5" href="#__codelineno-25-5"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">loadThres</span><span class="p">:</span><span class="w"> </span><span class="kt">Double</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">2.0</span><span class="w"> </span><span class="o">/</span><span class="w"> </span><span class="m">3.0</span><span class="w"> </span><span class="c1">// 触发扩容的负载因子阈值</span>
|
||||
<a id="__codelineno-25-6" name="__codelineno-25-6" href="#__codelineno-25-6"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">extendRatio</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">// 扩容倍数</span>
|
||||
<a id="__codelineno-25-7" name="__codelineno-25-7" href="#__codelineno-25-7"></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">buckets</span><span class="p">:</span><span class="w"> </span><span class="n">Array</span><span class="o"><</span><span class="n">Pair?></span><span class="w"> </span><span class="c1">// 桶数组</span>
|
||||
<a id="__codelineno-25-8" name="__codelineno-25-8" href="#__codelineno-25-8"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">TOMBSTONE</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Pair</span><span class="p">(</span><span class="o">-</span><span class="m">1</span><span class="p">,</span><span class="w"> </span><span class="s">"-1"</span><span class="p">)</span><span class="w"> </span><span class="c1">// 删除标记</span>
|
||||
<a id="__codelineno-25-3" name="__codelineno-25-3" href="#__codelineno-25-3"></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">size</span><span class="p">:</span><span class="w"> </span><span class="kt">Int</span><span class="w"> </span><span class="c1">// 键值对数量</span>
|
||||
<a id="__codelineno-25-4" name="__codelineno-25-4" href="#__codelineno-25-4"></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="c1">// 哈希表容量</span>
|
||||
<a id="__codelineno-25-5" name="__codelineno-25-5" href="#__codelineno-25-5"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">loadThres</span><span class="p">:</span><span class="w"> </span><span class="kt">Double</span><span class="w"> </span><span class="c1">// 触发扩容的负载因子阈值</span>
|
||||
<a id="__codelineno-25-6" name="__codelineno-25-6" href="#__codelineno-25-6"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">val</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="c1">// 扩容倍数</span>
|
||||
<a id="__codelineno-25-7" name="__codelineno-25-7" href="#__codelineno-25-7"></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">buckets</span><span class="p">:</span><span class="w"> </span><span class="n">Array</span><span class="o"><</span><span class="n">Pair?></span><span class="w"> </span><span class="c1">// 桶数组</span>
|
||||
<a id="__codelineno-25-8" name="__codelineno-25-8" href="#__codelineno-25-8"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">TOMBSTONE</span><span class="p">:</span><span class="w"> </span><span class="n">Pair</span><span class="w"> </span><span class="c1">// 删除标记</span>
|
||||
<a id="__codelineno-25-9" name="__codelineno-25-9" href="#__codelineno-25-9"></a>
|
||||
<a id="__codelineno-25-10" name="__codelineno-25-10" href="#__codelineno-25-10"></a><span class="w"> </span><span class="cm">/* 构造方法 */</span>
|
||||
<a id="__codelineno-25-11" name="__codelineno-25-11" href="#__codelineno-25-11"></a><span class="w"> </span><span class="k">init</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-12" name="__codelineno-25-12" href="#__codelineno-25-12"></a><span class="w"> </span><span class="n">buckets</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arrayOfNulls</span><span class="p">(</span><span class="n">capacity</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-13" name="__codelineno-25-13" href="#__codelineno-25-13"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-14" name="__codelineno-25-14" href="#__codelineno-25-14"></a>
|
||||
<a id="__codelineno-25-15" name="__codelineno-25-15" href="#__codelineno-25-15"></a><span class="w"> </span><span class="cm">/* 哈希函数 */</span>
|
||||
<a id="__codelineno-25-16" name="__codelineno-25-16" href="#__codelineno-25-16"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">hashFunc</span><span class="p">(</span><span class="n">key</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-25-17" name="__codelineno-25-17" href="#__codelineno-25-17"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">key</span><span class="w"> </span><span class="o">%</span><span class="w"> </span><span class="n">capacity</span>
|
||||
<a id="__codelineno-25-12" name="__codelineno-25-12" href="#__codelineno-25-12"></a><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>
|
||||
<a id="__codelineno-25-13" name="__codelineno-25-13" href="#__codelineno-25-13"></a><span class="w"> </span><span class="n">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">4</span>
|
||||
<a id="__codelineno-25-14" name="__codelineno-25-14" href="#__codelineno-25-14"></a><span class="w"> </span><span class="n">loadThres</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">2.0</span><span class="w"> </span><span class="o">/</span><span class="w"> </span><span class="m">3.0</span>
|
||||
<a id="__codelineno-25-15" name="__codelineno-25-15" href="#__codelineno-25-15"></a><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>
|
||||
<a id="__codelineno-25-16" name="__codelineno-25-16" href="#__codelineno-25-16"></a><span class="w"> </span><span class="n">buckets</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arrayOfNulls</span><span class="p">(</span><span class="n">capacity</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-17" name="__codelineno-25-17" href="#__codelineno-25-17"></a><span class="w"> </span><span class="n">TOMBSTONE</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Pair</span><span class="p">(</span><span class="o">-</span><span class="m">1</span><span class="p">,</span><span class="w"> </span><span class="s">"-1"</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-18" name="__codelineno-25-18" href="#__codelineno-25-18"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-19" name="__codelineno-25-19" href="#__codelineno-25-19"></a>
|
||||
<a id="__codelineno-25-20" name="__codelineno-25-20" href="#__codelineno-25-20"></a><span class="w"> </span><span class="cm">/* 负载因子 */</span>
|
||||
<a id="__codelineno-25-21" name="__codelineno-25-21" href="#__codelineno-25-21"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">loadFactor</span><span class="p">():</span><span class="w"> </span><span class="kt">Double</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-22" name="__codelineno-25-22" href="#__codelineno-25-22"></a><span class="w"> </span><span class="k">return</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="na">toDouble</span><span class="p">()</span>
|
||||
<a id="__codelineno-25-20" name="__codelineno-25-20" href="#__codelineno-25-20"></a><span class="w"> </span><span class="cm">/* 哈希函数 */</span>
|
||||
<a id="__codelineno-25-21" name="__codelineno-25-21" href="#__codelineno-25-21"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">hashFunc</span><span class="p">(</span><span class="n">key</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-25-22" name="__codelineno-25-22" href="#__codelineno-25-22"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">key</span><span class="w"> </span><span class="o">%</span><span class="w"> </span><span class="n">capacity</span>
|
||||
<a id="__codelineno-25-23" name="__codelineno-25-23" href="#__codelineno-25-23"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-24" name="__codelineno-25-24" href="#__codelineno-25-24"></a>
|
||||
<a id="__codelineno-25-25" name="__codelineno-25-25" href="#__codelineno-25-25"></a><span class="w"> </span><span class="cm">/* 搜索 key 对应的桶索引 */</span>
|
||||
<a id="__codelineno-25-26" name="__codelineno-25-26" href="#__codelineno-25-26"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">findBucket</span><span class="p">(</span><span class="n">key</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-25-27" name="__codelineno-25-27" href="#__codelineno-25-27"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">hashFunc</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-28" name="__codelineno-25-28" href="#__codelineno-25-28"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">firstTombstone</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">-</span><span class="m">1</span>
|
||||
<a id="__codelineno-25-29" name="__codelineno-25-29" href="#__codelineno-25-29"></a><span class="w"> </span><span class="c1">// 线性探测，当遇到空桶时跳出</span>
|
||||
<a id="__codelineno-25-30" name="__codelineno-25-30" href="#__codelineno-25-30"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">buckets</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="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-31" name="__codelineno-25-31" href="#__codelineno-25-31"></a><span class="w"> </span><span class="c1">// 若遇到 key ，返回对应的桶索引</span>
|
||||
<a id="__codelineno-25-32" name="__codelineno-25-32" href="#__codelineno-25-32"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">buckets</span><span class="o">[</span><span class="n">index</span><span class="o">]?.</span><span class="na">key</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">key</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-33" name="__codelineno-25-33" href="#__codelineno-25-33"></a><span class="w"> </span><span class="c1">// 若之前遇到了删除标记，则将键值对移动至该索引处</span>
|
||||
<a id="__codelineno-25-34" name="__codelineno-25-34" href="#__codelineno-25-34"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">firstTombstone</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="o">-</span><span class="m">1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-35" name="__codelineno-25-35" href="#__codelineno-25-35"></a><span class="w"> </span><span class="n">buckets</span><span class="o">[</span><span class="n">firstTombstone</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">buckets</span><span class="o">[</span><span class="n">index</span><span class="o">]</span>
|
||||
<a id="__codelineno-25-36" name="__codelineno-25-36" href="#__codelineno-25-36"></a><span class="w"> </span><span class="n">buckets</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">TOMBSTONE</span>
|
||||
<a id="__codelineno-25-37" name="__codelineno-25-37" href="#__codelineno-25-37"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">firstTombstone</span><span class="w"> </span><span class="c1">// 返回移动后的桶索引</span>
|
||||
<a id="__codelineno-25-38" name="__codelineno-25-38" href="#__codelineno-25-38"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-39" name="__codelineno-25-39" href="#__codelineno-25-39"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="c1">// 返回桶索引</span>
|
||||
<a id="__codelineno-25-40" name="__codelineno-25-40" href="#__codelineno-25-40"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-41" name="__codelineno-25-41" href="#__codelineno-25-41"></a><span class="w"> </span><span class="c1">// 记录遇到的首个删除标记</span>
|
||||
<a id="__codelineno-25-42" name="__codelineno-25-42" href="#__codelineno-25-42"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">firstTombstone</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="o">-</span><span class="m">1</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">buckets</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">TOMBSTONE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-43" name="__codelineno-25-43" href="#__codelineno-25-43"></a><span class="w"> </span><span class="n">firstTombstone</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span>
|
||||
<a id="__codelineno-25-44" name="__codelineno-25-44" href="#__codelineno-25-44"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-45" name="__codelineno-25-45" href="#__codelineno-25-45"></a><span class="w"> </span><span class="c1">// 计算桶索引，越过尾部则返回头部</span>
|
||||
<a id="__codelineno-25-46" name="__codelineno-25-46" href="#__codelineno-25-46"></a><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">=</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">1</span><span class="p">)</span><span class="w"> </span><span class="o">%</span><span class="w"> </span><span class="n">capacity</span>
|
||||
<a id="__codelineno-25-47" name="__codelineno-25-47" href="#__codelineno-25-47"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-48" name="__codelineno-25-48" href="#__codelineno-25-48"></a><span class="w"> </span><span class="c1">// 若 key 不存在，则返回添加点的索引</span>
|
||||
<a id="__codelineno-25-49" name="__codelineno-25-49" href="#__codelineno-25-49"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">firstTombstone</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="o">-</span><span class="m">1</span><span class="p">)</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="n">firstTombstone</span>
|
||||
<a id="__codelineno-25-50" name="__codelineno-25-50" href="#__codelineno-25-50"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-51" name="__codelineno-25-51" href="#__codelineno-25-51"></a>
|
||||
<a id="__codelineno-25-52" name="__codelineno-25-52" href="#__codelineno-25-52"></a><span class="w"> </span><span class="cm">/* 查询操作 */</span>
|
||||
<a id="__codelineno-25-53" name="__codelineno-25-53" href="#__codelineno-25-53"></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">key</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">String?</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-54" name="__codelineno-25-54" href="#__codelineno-25-54"></a><span class="w"> </span><span class="c1">// 搜索 key 对应的桶索引</span>
|
||||
<a id="__codelineno-25-55" name="__codelineno-25-55" href="#__codelineno-25-55"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">findBucket</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-56" name="__codelineno-25-56" href="#__codelineno-25-56"></a><span class="w"> </span><span class="c1">// 若找到键值对，则返回对应 val</span>
|
||||
<a id="__codelineno-25-57" name="__codelineno-25-57" href="#__codelineno-25-57"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">buckets</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="kc">null</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">buckets</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">TOMBSTONE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-58" name="__codelineno-25-58" href="#__codelineno-25-58"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">buckets</span><span class="o">[</span><span class="n">index</span><span class="o">]?.</span><span class="na">value</span>
|
||||
<a id="__codelineno-25-59" name="__codelineno-25-59" href="#__codelineno-25-59"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-60" name="__codelineno-25-60" href="#__codelineno-25-60"></a><span class="w"> </span><span class="c1">// 若键值对不存在，则返回 null</span>
|
||||
<a id="__codelineno-25-61" name="__codelineno-25-61" href="#__codelineno-25-61"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="kc">null</span>
|
||||
<a id="__codelineno-25-62" name="__codelineno-25-62" href="#__codelineno-25-62"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-63" name="__codelineno-25-63" href="#__codelineno-25-63"></a>
|
||||
<a id="__codelineno-25-64" name="__codelineno-25-64" href="#__codelineno-25-64"></a><span class="w"> </span><span class="cm">/* 添加操作 */</span>
|
||||
<a id="__codelineno-25-65" name="__codelineno-25-65" href="#__codelineno-25-65"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">put</span><span class="p">(</span><span class="n">key</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">value</span><span class="p">:</span><span class="w"> </span><span class="kt">String</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-66" name="__codelineno-25-66" href="#__codelineno-25-66"></a><span class="w"> </span><span class="c1">// 当负载因子超过阈值时，执行扩容</span>
|
||||
<a id="__codelineno-25-67" name="__codelineno-25-67" href="#__codelineno-25-67"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">loadFactor</span><span class="p">()</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="n">loadThres</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-68" name="__codelineno-25-68" href="#__codelineno-25-68"></a><span class="w"> </span><span class="n">extend</span><span class="p">()</span>
|
||||
<a id="__codelineno-25-69" name="__codelineno-25-69" href="#__codelineno-25-69"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-70" name="__codelineno-25-70" href="#__codelineno-25-70"></a><span class="w"> </span><span class="c1">// 搜索 key 对应的桶索引</span>
|
||||
<a id="__codelineno-25-71" name="__codelineno-25-71" href="#__codelineno-25-71"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">findBucket</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-72" name="__codelineno-25-72" href="#__codelineno-25-72"></a><span class="w"> </span><span class="c1">// 若找到键值对，则覆盖 val 并返回</span>
|
||||
<a id="__codelineno-25-73" name="__codelineno-25-73" href="#__codelineno-25-73"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">buckets</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="kc">null</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">buckets</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">TOMBSTONE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-74" name="__codelineno-25-74" href="#__codelineno-25-74"></a><span class="w"> </span><span class="n">buckets</span><span class="o">[</span><span class="n">index</span><span class="o">]!!</span><span class="p">.</span><span class="na">value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">value</span>
|
||||
<a id="__codelineno-25-75" name="__codelineno-25-75" href="#__codelineno-25-75"></a><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-25-76" name="__codelineno-25-76" href="#__codelineno-25-76"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-77" name="__codelineno-25-77" href="#__codelineno-25-77"></a><span class="w"> </span><span class="c1">// 若键值对不存在，则添加该键值对</span>
|
||||
<a id="__codelineno-25-78" name="__codelineno-25-78" href="#__codelineno-25-78"></a><span class="w"> </span><span class="n">buckets</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">Pair</span><span class="p">(</span><span class="n">key</span><span class="p">,</span><span class="w"> </span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-79" name="__codelineno-25-79" href="#__codelineno-25-79"></a><span class="w"> </span><span class="n">size</span><span class="o">++</span>
|
||||
<a id="__codelineno-25-80" name="__codelineno-25-80" href="#__codelineno-25-80"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-81" name="__codelineno-25-81" href="#__codelineno-25-81"></a>
|
||||
<a id="__codelineno-25-82" name="__codelineno-25-82" href="#__codelineno-25-82"></a><span class="w"> </span><span class="cm">/* 删除操作 */</span>
|
||||
<a id="__codelineno-25-83" name="__codelineno-25-83" href="#__codelineno-25-83"></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">key</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-25-84" name="__codelineno-25-84" href="#__codelineno-25-84"></a><span class="w"> </span><span class="c1">// 搜索 key 对应的桶索引</span>
|
||||
<a id="__codelineno-25-85" name="__codelineno-25-85" href="#__codelineno-25-85"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">findBucket</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-86" name="__codelineno-25-86" href="#__codelineno-25-86"></a><span class="w"> </span><span class="c1">// 若找到键值对，则用删除标记覆盖它</span>
|
||||
<a id="__codelineno-25-87" name="__codelineno-25-87" href="#__codelineno-25-87"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">buckets</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="kc">null</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">buckets</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">TOMBSTONE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-88" name="__codelineno-25-88" href="#__codelineno-25-88"></a><span class="w"> </span><span class="n">buckets</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">TOMBSTONE</span>
|
||||
<a id="__codelineno-25-89" name="__codelineno-25-89" href="#__codelineno-25-89"></a><span class="w"> </span><span class="n">size</span><span class="o">--</span>
|
||||
<a id="__codelineno-25-90" name="__codelineno-25-90" href="#__codelineno-25-90"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-91" name="__codelineno-25-91" href="#__codelineno-25-91"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-92" name="__codelineno-25-92" href="#__codelineno-25-92"></a>
|
||||
<a id="__codelineno-25-93" name="__codelineno-25-93" href="#__codelineno-25-93"></a><span class="w"> </span><span class="cm">/* 扩容哈希表 */</span>
|
||||
<a id="__codelineno-25-94" name="__codelineno-25-94" href="#__codelineno-25-94"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">extend</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-95" name="__codelineno-25-95" href="#__codelineno-25-95"></a><span class="w"> </span><span class="c1">// 暂存原哈希表</span>
|
||||
<a id="__codelineno-25-96" name="__codelineno-25-96" href="#__codelineno-25-96"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">bucketsTmp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">buckets</span>
|
||||
<a id="__codelineno-25-97" name="__codelineno-25-97" href="#__codelineno-25-97"></a><span class="w"> </span><span class="c1">// 初始化扩容后的新哈希表</span>
|
||||
<a id="__codelineno-25-98" name="__codelineno-25-98" href="#__codelineno-25-98"></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">extendRatio</span>
|
||||
<a id="__codelineno-25-99" name="__codelineno-25-99" href="#__codelineno-25-99"></a><span class="w"> </span><span class="n">buckets</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arrayOfNulls</span><span class="p">(</span><span class="n">capacity</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-100" name="__codelineno-25-100" href="#__codelineno-25-100"></a><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>
|
||||
<a id="__codelineno-25-101" name="__codelineno-25-101" href="#__codelineno-25-101"></a><span class="w"> </span><span class="c1">// 将键值对从原哈希表搬运至新哈希表</span>
|
||||
<a id="__codelineno-25-102" name="__codelineno-25-102" href="#__codelineno-25-102"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">bucketsTmp</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-103" name="__codelineno-25-103" href="#__codelineno-25-103"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">pair</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="n">TOMBSTONE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-104" name="__codelineno-25-104" href="#__codelineno-25-104"></a><span class="w"> </span><span class="n">put</span><span class="p">(</span><span class="n">pair</span><span class="p">.</span><span class="na">key</span><span class="p">,</span><span class="w"> </span><span class="n">pair</span><span class="p">.</span><span class="na">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-105" name="__codelineno-25-105" href="#__codelineno-25-105"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-106" name="__codelineno-25-106" href="#__codelineno-25-106"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-107" name="__codelineno-25-107" href="#__codelineno-25-107"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-108" name="__codelineno-25-108" href="#__codelineno-25-108"></a>
|
||||
<a id="__codelineno-25-109" name="__codelineno-25-109" href="#__codelineno-25-109"></a><span class="w"> </span><span class="cm">/* 打印哈希表 */</span>
|
||||
<a id="__codelineno-25-110" name="__codelineno-25-110" href="#__codelineno-25-110"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">print</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-111" name="__codelineno-25-111" href="#__codelineno-25-111"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">buckets</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-112" name="__codelineno-25-112" href="#__codelineno-25-112"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-113" name="__codelineno-25-113" href="#__codelineno-25-113"></a><span class="w"> </span><span class="n">println</span><span class="p">(</span><span class="s">"null"</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-114" name="__codelineno-25-114" href="#__codelineno-25-114"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">TOMBSTONE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-115" name="__codelineno-25-115" href="#__codelineno-25-115"></a><span class="w"> </span><span class="n">println</span><span class="p">(</span><span class="s">"TOMESTOME"</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-116" name="__codelineno-25-116" href="#__codelineno-25-116"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-117" name="__codelineno-25-117" href="#__codelineno-25-117"></a><span class="w"> </span><span class="n">println</span><span class="p">(</span><span class="s">"</span><span class="si">${</span><span class="n">pair</span><span class="p">.</span><span class="na">key</span><span class="si">}</span><span class="s"> -> </span><span class="si">${</span><span class="n">pair</span><span class="p">.</span><span class="na">value</span><span class="si">}</span><span class="s">"</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-118" name="__codelineno-25-118" href="#__codelineno-25-118"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-119" name="__codelineno-25-119" href="#__codelineno-25-119"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-120" name="__codelineno-25-120" href="#__codelineno-25-120"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-121" name="__codelineno-25-121" href="#__codelineno-25-121"></a><span class="p">}</span>
|
||||
<a id="__codelineno-25-25" name="__codelineno-25-25" href="#__codelineno-25-25"></a><span class="w"> </span><span class="cm">/* 负载因子 */</span>
|
||||
<a id="__codelineno-25-26" name="__codelineno-25-26" href="#__codelineno-25-26"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">loadFactor</span><span class="p">():</span><span class="w"> </span><span class="kt">Double</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-27" name="__codelineno-25-27" href="#__codelineno-25-27"></a><span class="w"> </span><span class="k">return</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="na">toDouble</span><span class="p">()</span>
|
||||
<a id="__codelineno-25-28" name="__codelineno-25-28" href="#__codelineno-25-28"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-29" name="__codelineno-25-29" href="#__codelineno-25-29"></a>
|
||||
<a id="__codelineno-25-30" name="__codelineno-25-30" href="#__codelineno-25-30"></a><span class="w"> </span><span class="cm">/* 搜索 key 对应的桶索引 */</span>
|
||||
<a id="__codelineno-25-31" name="__codelineno-25-31" href="#__codelineno-25-31"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">findBucket</span><span class="p">(</span><span class="n">key</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-25-32" name="__codelineno-25-32" href="#__codelineno-25-32"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">hashFunc</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-33" name="__codelineno-25-33" href="#__codelineno-25-33"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">firstTombstone</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">-</span><span class="m">1</span>
|
||||
<a id="__codelineno-25-34" name="__codelineno-25-34" href="#__codelineno-25-34"></a><span class="w"> </span><span class="c1">// 线性探测，当遇到空桶时跳出</span>
|
||||
<a id="__codelineno-25-35" name="__codelineno-25-35" href="#__codelineno-25-35"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">buckets</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="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-36" name="__codelineno-25-36" href="#__codelineno-25-36"></a><span class="w"> </span><span class="c1">// 若遇到 key ，返回对应的桶索引</span>
|
||||
<a id="__codelineno-25-37" name="__codelineno-25-37" href="#__codelineno-25-37"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">buckets</span><span class="o">[</span><span class="n">index</span><span class="o">]?.</span><span class="na">key</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">key</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-38" name="__codelineno-25-38" href="#__codelineno-25-38"></a><span class="w"> </span><span class="c1">// 若之前遇到了删除标记，则将键值对移动至该索引处</span>
|
||||
<a id="__codelineno-25-39" name="__codelineno-25-39" href="#__codelineno-25-39"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">firstTombstone</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="o">-</span><span class="m">1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-40" name="__codelineno-25-40" href="#__codelineno-25-40"></a><span class="w"> </span><span class="n">buckets</span><span class="o">[</span><span class="n">firstTombstone</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">buckets</span><span class="o">[</span><span class="n">index</span><span class="o">]</span>
|
||||
<a id="__codelineno-25-41" name="__codelineno-25-41" href="#__codelineno-25-41"></a><span class="w"> </span><span class="n">buckets</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">TOMBSTONE</span>
|
||||
<a id="__codelineno-25-42" name="__codelineno-25-42" href="#__codelineno-25-42"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">firstTombstone</span><span class="w"> </span><span class="c1">// 返回移动后的桶索引</span>
|
||||
<a id="__codelineno-25-43" name="__codelineno-25-43" href="#__codelineno-25-43"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-44" name="__codelineno-25-44" href="#__codelineno-25-44"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="c1">// 返回桶索引</span>
|
||||
<a id="__codelineno-25-45" name="__codelineno-25-45" href="#__codelineno-25-45"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-46" name="__codelineno-25-46" href="#__codelineno-25-46"></a><span class="w"> </span><span class="c1">// 记录遇到的首个删除标记</span>
|
||||
<a id="__codelineno-25-47" name="__codelineno-25-47" href="#__codelineno-25-47"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">firstTombstone</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="o">-</span><span class="m">1</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">buckets</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">TOMBSTONE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-48" name="__codelineno-25-48" href="#__codelineno-25-48"></a><span class="w"> </span><span class="n">firstTombstone</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span>
|
||||
<a id="__codelineno-25-49" name="__codelineno-25-49" href="#__codelineno-25-49"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-50" name="__codelineno-25-50" href="#__codelineno-25-50"></a><span class="w"> </span><span class="c1">// 计算桶索引，越过尾部则返回头部</span>
|
||||
<a id="__codelineno-25-51" name="__codelineno-25-51" href="#__codelineno-25-51"></a><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">=</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">1</span><span class="p">)</span><span class="w"> </span><span class="o">%</span><span class="w"> </span><span class="n">capacity</span>
|
||||
<a id="__codelineno-25-52" name="__codelineno-25-52" href="#__codelineno-25-52"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-53" name="__codelineno-25-53" href="#__codelineno-25-53"></a><span class="w"> </span><span class="c1">// 若 key 不存在，则返回添加点的索引</span>
|
||||
<a id="__codelineno-25-54" name="__codelineno-25-54" href="#__codelineno-25-54"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">firstTombstone</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="o">-</span><span class="m">1</span><span class="p">)</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="n">firstTombstone</span>
|
||||
<a id="__codelineno-25-55" name="__codelineno-25-55" href="#__codelineno-25-55"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-56" name="__codelineno-25-56" href="#__codelineno-25-56"></a>
|
||||
<a id="__codelineno-25-57" name="__codelineno-25-57" href="#__codelineno-25-57"></a><span class="w"> </span><span class="cm">/* 查询操作 */</span>
|
||||
<a id="__codelineno-25-58" name="__codelineno-25-58" href="#__codelineno-25-58"></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">key</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">String?</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-59" name="__codelineno-25-59" href="#__codelineno-25-59"></a><span class="w"> </span><span class="c1">// 搜索 key 对应的桶索引</span>
|
||||
<a id="__codelineno-25-60" name="__codelineno-25-60" href="#__codelineno-25-60"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">findBucket</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-61" name="__codelineno-25-61" href="#__codelineno-25-61"></a><span class="w"> </span><span class="c1">// 若找到键值对，则返回对应 val</span>
|
||||
<a id="__codelineno-25-62" name="__codelineno-25-62" href="#__codelineno-25-62"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">buckets</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="kc">null</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">buckets</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">TOMBSTONE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-63" name="__codelineno-25-63" href="#__codelineno-25-63"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">buckets</span><span class="o">[</span><span class="n">index</span><span class="o">]?.</span><span class="na">value</span>
|
||||
<a id="__codelineno-25-64" name="__codelineno-25-64" href="#__codelineno-25-64"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-65" name="__codelineno-25-65" href="#__codelineno-25-65"></a><span class="w"> </span><span class="c1">// 若键值对不存在，则返回 null</span>
|
||||
<a id="__codelineno-25-66" name="__codelineno-25-66" href="#__codelineno-25-66"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="kc">null</span>
|
||||
<a id="__codelineno-25-67" name="__codelineno-25-67" href="#__codelineno-25-67"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-68" name="__codelineno-25-68" href="#__codelineno-25-68"></a>
|
||||
<a id="__codelineno-25-69" name="__codelineno-25-69" href="#__codelineno-25-69"></a><span class="w"> </span><span class="cm">/* 添加操作 */</span>
|
||||
<a id="__codelineno-25-70" name="__codelineno-25-70" href="#__codelineno-25-70"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">put</span><span class="p">(</span><span class="n">key</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">value</span><span class="p">:</span><span class="w"> </span><span class="kt">String</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-71" name="__codelineno-25-71" href="#__codelineno-25-71"></a><span class="w"> </span><span class="c1">// 当负载因子超过阈值时，执行扩容</span>
|
||||
<a id="__codelineno-25-72" name="__codelineno-25-72" href="#__codelineno-25-72"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">loadFactor</span><span class="p">()</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="n">loadThres</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-73" name="__codelineno-25-73" href="#__codelineno-25-73"></a><span class="w"> </span><span class="n">extend</span><span class="p">()</span>
|
||||
<a id="__codelineno-25-74" name="__codelineno-25-74" href="#__codelineno-25-74"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-75" name="__codelineno-25-75" href="#__codelineno-25-75"></a><span class="w"> </span><span class="c1">// 搜索 key 对应的桶索引</span>
|
||||
<a id="__codelineno-25-76" name="__codelineno-25-76" href="#__codelineno-25-76"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">findBucket</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-77" name="__codelineno-25-77" href="#__codelineno-25-77"></a><span class="w"> </span><span class="c1">// 若找到键值对，则覆盖 val 并返回</span>
|
||||
<a id="__codelineno-25-78" name="__codelineno-25-78" href="#__codelineno-25-78"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">buckets</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="kc">null</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">buckets</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">TOMBSTONE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-79" name="__codelineno-25-79" href="#__codelineno-25-79"></a><span class="w"> </span><span class="n">buckets</span><span class="o">[</span><span class="n">index</span><span class="o">]!!</span><span class="p">.</span><span class="na">value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">value</span>
|
||||
<a id="__codelineno-25-80" name="__codelineno-25-80" href="#__codelineno-25-80"></a><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-25-81" name="__codelineno-25-81" href="#__codelineno-25-81"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-82" name="__codelineno-25-82" href="#__codelineno-25-82"></a><span class="w"> </span><span class="c1">// 若键值对不存在，则添加该键值对</span>
|
||||
<a id="__codelineno-25-83" name="__codelineno-25-83" href="#__codelineno-25-83"></a><span class="w"> </span><span class="n">buckets</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">Pair</span><span class="p">(</span><span class="n">key</span><span class="p">,</span><span class="w"> </span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-84" name="__codelineno-25-84" href="#__codelineno-25-84"></a><span class="w"> </span><span class="n">size</span><span class="o">++</span>
|
||||
<a id="__codelineno-25-85" name="__codelineno-25-85" href="#__codelineno-25-85"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-86" name="__codelineno-25-86" href="#__codelineno-25-86"></a>
|
||||
<a id="__codelineno-25-87" name="__codelineno-25-87" href="#__codelineno-25-87"></a><span class="w"> </span><span class="cm">/* 删除操作 */</span>
|
||||
<a id="__codelineno-25-88" name="__codelineno-25-88" href="#__codelineno-25-88"></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">key</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-25-89" name="__codelineno-25-89" href="#__codelineno-25-89"></a><span class="w"> </span><span class="c1">// 搜索 key 对应的桶索引</span>
|
||||
<a id="__codelineno-25-90" name="__codelineno-25-90" href="#__codelineno-25-90"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">findBucket</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-91" name="__codelineno-25-91" href="#__codelineno-25-91"></a><span class="w"> </span><span class="c1">// 若找到键值对，则用删除标记覆盖它</span>
|
||||
<a id="__codelineno-25-92" name="__codelineno-25-92" href="#__codelineno-25-92"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">buckets</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="kc">null</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">buckets</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">TOMBSTONE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-93" name="__codelineno-25-93" href="#__codelineno-25-93"></a><span class="w"> </span><span class="n">buckets</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">TOMBSTONE</span>
|
||||
<a id="__codelineno-25-94" name="__codelineno-25-94" href="#__codelineno-25-94"></a><span class="w"> </span><span class="n">size</span><span class="o">--</span>
|
||||
<a id="__codelineno-25-95" name="__codelineno-25-95" href="#__codelineno-25-95"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-96" name="__codelineno-25-96" href="#__codelineno-25-96"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-97" name="__codelineno-25-97" href="#__codelineno-25-97"></a>
|
||||
<a id="__codelineno-25-98" name="__codelineno-25-98" href="#__codelineno-25-98"></a><span class="w"> </span><span class="cm">/* 扩容哈希表 */</span>
|
||||
<a id="__codelineno-25-99" name="__codelineno-25-99" href="#__codelineno-25-99"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">extend</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-100" name="__codelineno-25-100" href="#__codelineno-25-100"></a><span class="w"> </span><span class="c1">// 暂存原哈希表</span>
|
||||
<a id="__codelineno-25-101" name="__codelineno-25-101" href="#__codelineno-25-101"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">bucketsTmp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">buckets</span>
|
||||
<a id="__codelineno-25-102" name="__codelineno-25-102" href="#__codelineno-25-102"></a><span class="w"> </span><span class="c1">// 初始化扩容后的新哈希表</span>
|
||||
<a id="__codelineno-25-103" name="__codelineno-25-103" href="#__codelineno-25-103"></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">extendRatio</span>
|
||||
<a id="__codelineno-25-104" name="__codelineno-25-104" href="#__codelineno-25-104"></a><span class="w"> </span><span class="n">buckets</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arrayOfNulls</span><span class="p">(</span><span class="n">capacity</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-105" name="__codelineno-25-105" href="#__codelineno-25-105"></a><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>
|
||||
<a id="__codelineno-25-106" name="__codelineno-25-106" href="#__codelineno-25-106"></a><span class="w"> </span><span class="c1">// 将键值对从原哈希表搬运至新哈希表</span>
|
||||
<a id="__codelineno-25-107" name="__codelineno-25-107" href="#__codelineno-25-107"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">bucketsTmp</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-108" name="__codelineno-25-108" href="#__codelineno-25-108"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="w"> </span><span class="o">&&</span><span class="w"> </span><span class="n">pair</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="n">TOMBSTONE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-109" name="__codelineno-25-109" href="#__codelineno-25-109"></a><span class="w"> </span><span class="n">put</span><span class="p">(</span><span class="n">pair</span><span class="p">.</span><span class="na">key</span><span class="p">,</span><span class="w"> </span><span class="n">pair</span><span class="p">.</span><span class="na">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-110" name="__codelineno-25-110" href="#__codelineno-25-110"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-111" name="__codelineno-25-111" href="#__codelineno-25-111"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-112" name="__codelineno-25-112" href="#__codelineno-25-112"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-113" name="__codelineno-25-113" href="#__codelineno-25-113"></a>
|
||||
<a id="__codelineno-25-114" name="__codelineno-25-114" href="#__codelineno-25-114"></a><span class="w"> </span><span class="cm">/* 打印哈希表 */</span>
|
||||
<a id="__codelineno-25-115" name="__codelineno-25-115" href="#__codelineno-25-115"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">print</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-116" name="__codelineno-25-116" href="#__codelineno-25-116"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">buckets</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-117" name="__codelineno-25-117" href="#__codelineno-25-117"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-118" name="__codelineno-25-118" href="#__codelineno-25-118"></a><span class="w"> </span><span class="n">println</span><span class="p">(</span><span class="s">"null"</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-119" name="__codelineno-25-119" href="#__codelineno-25-119"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">TOMBSTONE</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-120" name="__codelineno-25-120" href="#__codelineno-25-120"></a><span class="w"> </span><span class="n">println</span><span class="p">(</span><span class="s">"TOMESTOME"</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-121" name="__codelineno-25-121" href="#__codelineno-25-121"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-122" name="__codelineno-25-122" href="#__codelineno-25-122"></a><span class="w"> </span><span class="n">println</span><span class="p">(</span><span class="s">"</span><span class="si">${</span><span class="n">pair</span><span class="p">.</span><span class="na">key</span><span class="si">}</span><span class="s"> -> </span><span class="si">${</span><span class="n">pair</span><span class="p">.</span><span class="na">value</span><span class="si">}</span><span class="s">"</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-123" name="__codelineno-25-123" href="#__codelineno-25-123"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-124" name="__codelineno-25-124" href="#__codelineno-25-124"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-125" name="__codelineno-25-125" href="#__codelineno-25-125"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-126" name="__codelineno-25-126" href="#__codelineno-25-126"></a><span class="p">}</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
|
||||
@@ -3579,153 +3579,145 @@
|
||||
<a id="__codelineno-38-6" name="__codelineno-38-6" href="#__codelineno-38-6"></a>
|
||||
<a id="__codelineno-38-7" name="__codelineno-38-7" href="#__codelineno-38-7"></a><span class="cm">/* 基于数组实现的哈希表 */</span>
|
||||
<a id="__codelineno-38-8" name="__codelineno-38-8" href="#__codelineno-38-8"></a><span class="kd">class</span><span class="w"> </span><span class="nc">ArrayHashMap</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-9" name="__codelineno-38-9" href="#__codelineno-38-9"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">buckets</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arrayOfNulls</span><span class="o"><</span><span class="n">Pair</span><span class="o">></span><span class="p">(</span><span class="m">100</span><span class="p">)</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="w"> </span><span class="k">init</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-12" name="__codelineno-38-12" href="#__codelineno-38-12"></a><span class="w"> </span><span class="c1">// 初始化数组，包含 100 个桶</span>
|
||||
<a id="__codelineno-38-13" name="__codelineno-38-13" href="#__codelineno-38-13"></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="m">100</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-14" name="__codelineno-38-14" href="#__codelineno-38-14"></a><span class="w"> </span><span class="n">buckets</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="kc">null</span>
|
||||
<a id="__codelineno-38-15" name="__codelineno-38-15" href="#__codelineno-38-15"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-9" name="__codelineno-38-9" href="#__codelineno-38-9"></a><span class="w"> </span><span class="c1">// 初始化数组，包含 100 个桶</span>
|
||||
<a id="__codelineno-38-10" name="__codelineno-38-10" href="#__codelineno-38-10"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">buckets</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arrayOfNulls</span><span class="o"><</span><span class="n">Pair</span><span class="o">></span><span class="p">(</span><span class="m">100</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-11" name="__codelineno-38-11" href="#__codelineno-38-11"></a>
|
||||
<a id="__codelineno-38-12" name="__codelineno-38-12" href="#__codelineno-38-12"></a><span class="w"> </span><span class="cm">/* 哈希函数 */</span>
|
||||
<a id="__codelineno-38-13" name="__codelineno-38-13" href="#__codelineno-38-13"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">hashFunc</span><span class="p">(</span><span class="n">key</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-38-14" name="__codelineno-38-14" href="#__codelineno-38-14"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">key</span><span class="w"> </span><span class="o">%</span><span class="w"> </span><span class="m">100</span>
|
||||
<a id="__codelineno-38-15" name="__codelineno-38-15" href="#__codelineno-38-15"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">index</span>
|
||||
<a id="__codelineno-38-16" name="__codelineno-38-16" href="#__codelineno-38-16"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-17" name="__codelineno-38-17" href="#__codelineno-38-17"></a>
|
||||
<a id="__codelineno-38-18" name="__codelineno-38-18" href="#__codelineno-38-18"></a><span class="w"> </span><span class="cm">/* 哈希函数 */</span>
|
||||
<a id="__codelineno-38-19" name="__codelineno-38-19" href="#__codelineno-38-19"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">hashFunc</span><span class="p">(</span><span class="n">key</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-38-20" name="__codelineno-38-20" href="#__codelineno-38-20"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">key</span><span class="w"> </span><span class="o">%</span><span class="w"> </span><span class="m">100</span>
|
||||
<a id="__codelineno-38-21" name="__codelineno-38-21" href="#__codelineno-38-21"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">index</span>
|
||||
<a id="__codelineno-38-22" name="__codelineno-38-22" href="#__codelineno-38-22"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-23" name="__codelineno-38-23" href="#__codelineno-38-23"></a>
|
||||
<a id="__codelineno-38-24" name="__codelineno-38-24" href="#__codelineno-38-24"></a><span class="w"> </span><span class="cm">/* 查询操作 */</span>
|
||||
<a id="__codelineno-38-25" name="__codelineno-38-25" href="#__codelineno-38-25"></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">key</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">String?</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-26" name="__codelineno-38-26" href="#__codelineno-38-26"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">hashFunc</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-27" name="__codelineno-38-27" href="#__codelineno-38-27"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">pair</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">buckets</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="k">return</span><span class="w"> </span><span class="kc">null</span>
|
||||
<a id="__codelineno-38-28" name="__codelineno-38-28" href="#__codelineno-38-28"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">pair</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-38-29" name="__codelineno-38-29" href="#__codelineno-38-29"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-30" name="__codelineno-38-30" href="#__codelineno-38-30"></a>
|
||||
<a id="__codelineno-38-31" name="__codelineno-38-31" href="#__codelineno-38-31"></a><span class="w"> </span><span class="cm">/* 添加操作 */</span>
|
||||
<a id="__codelineno-38-32" name="__codelineno-38-32" href="#__codelineno-38-32"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">put</span><span class="p">(</span><span class="n">key</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">value</span><span class="p">:</span><span class="w"> </span><span class="kt">String</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-33" name="__codelineno-38-33" href="#__codelineno-38-33"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">pair</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Pair</span><span class="p">(</span><span class="n">key</span><span class="p">,</span><span class="w"> </span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-18" name="__codelineno-38-18" href="#__codelineno-38-18"></a><span class="w"> </span><span class="cm">/* 查询操作 */</span>
|
||||
<a id="__codelineno-38-19" name="__codelineno-38-19" href="#__codelineno-38-19"></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">key</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">String?</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-20" name="__codelineno-38-20" href="#__codelineno-38-20"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">hashFunc</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-21" name="__codelineno-38-21" href="#__codelineno-38-21"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">pair</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">buckets</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="k">return</span><span class="w"> </span><span class="kc">null</span>
|
||||
<a id="__codelineno-38-22" name="__codelineno-38-22" href="#__codelineno-38-22"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">pair</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-38-23" name="__codelineno-38-23" href="#__codelineno-38-23"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-24" name="__codelineno-38-24" href="#__codelineno-38-24"></a>
|
||||
<a id="__codelineno-38-25" name="__codelineno-38-25" href="#__codelineno-38-25"></a><span class="w"> </span><span class="cm">/* 添加操作 */</span>
|
||||
<a id="__codelineno-38-26" name="__codelineno-38-26" href="#__codelineno-38-26"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">put</span><span class="p">(</span><span class="n">key</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">value</span><span class="p">:</span><span class="w"> </span><span class="kt">String</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-27" name="__codelineno-38-27" href="#__codelineno-38-27"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">pair</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Pair</span><span class="p">(</span><span class="n">key</span><span class="p">,</span><span class="w"> </span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-28" name="__codelineno-38-28" href="#__codelineno-38-28"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">hashFunc</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-29" name="__codelineno-38-29" href="#__codelineno-38-29"></a><span class="w"> </span><span class="n">buckets</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">pair</span>
|
||||
<a id="__codelineno-38-30" name="__codelineno-38-30" href="#__codelineno-38-30"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-31" name="__codelineno-38-31" href="#__codelineno-38-31"></a>
|
||||
<a id="__codelineno-38-32" name="__codelineno-38-32" href="#__codelineno-38-32"></a><span class="w"> </span><span class="cm">/* 删除操作 */</span>
|
||||
<a id="__codelineno-38-33" name="__codelineno-38-33" href="#__codelineno-38-33"></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">key</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-38-34" name="__codelineno-38-34" href="#__codelineno-38-34"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">hashFunc</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-35" name="__codelineno-38-35" href="#__codelineno-38-35"></a><span class="w"> </span><span class="n">buckets</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">pair</span>
|
||||
<a id="__codelineno-38-36" name="__codelineno-38-36" href="#__codelineno-38-36"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-37" name="__codelineno-38-37" href="#__codelineno-38-37"></a>
|
||||
<a id="__codelineno-38-38" name="__codelineno-38-38" href="#__codelineno-38-38"></a><span class="w"> </span><span class="cm">/* 删除操作 */</span>
|
||||
<a id="__codelineno-38-39" name="__codelineno-38-39" href="#__codelineno-38-39"></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">key</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-38-40" name="__codelineno-38-40" href="#__codelineno-38-40"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">hashFunc</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-41" name="__codelineno-38-41" href="#__codelineno-38-41"></a><span class="w"> </span><span class="c1">// 置为 null ，代表删除</span>
|
||||
<a id="__codelineno-38-42" name="__codelineno-38-42" href="#__codelineno-38-42"></a><span class="w"> </span><span class="n">buckets</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="kc">null</span>
|
||||
<a id="__codelineno-38-43" name="__codelineno-38-43" href="#__codelineno-38-43"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-44" name="__codelineno-38-44" href="#__codelineno-38-44"></a>
|
||||
<a id="__codelineno-38-45" name="__codelineno-38-45" href="#__codelineno-38-45"></a><span class="w"> </span><span class="cm">/* 获取所有键值对 */</span>
|
||||
<a id="__codelineno-38-46" name="__codelineno-38-46" href="#__codelineno-38-46"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">pairSet</span><span class="p">():</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="n">Pair</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-47" name="__codelineno-38-47" href="#__codelineno-38-47"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">pairSet</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><</span><span class="n">Pair</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-38-48" name="__codelineno-38-48" href="#__codelineno-38-48"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">buckets</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-49" name="__codelineno-38-49" href="#__codelineno-38-49"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="n">pairSet</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">pair</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-50" name="__codelineno-38-50" href="#__codelineno-38-50"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-51" name="__codelineno-38-51" href="#__codelineno-38-51"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">pairSet</span>
|
||||
<a id="__codelineno-38-52" name="__codelineno-38-52" href="#__codelineno-38-52"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-53" name="__codelineno-38-53" href="#__codelineno-38-53"></a>
|
||||
<a id="__codelineno-38-54" name="__codelineno-38-54" href="#__codelineno-38-54"></a><span class="w"> </span><span class="cm">/* 获取所有键 */</span>
|
||||
<a id="__codelineno-38-55" name="__codelineno-38-55" href="#__codelineno-38-55"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">keySet</span><span class="p">():</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-56" name="__codelineno-38-56" href="#__codelineno-38-56"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">keySet</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-38-57" name="__codelineno-38-57" href="#__codelineno-38-57"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">buckets</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-58" name="__codelineno-38-58" href="#__codelineno-38-58"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="n">keySet</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">pair</span><span class="p">.</span><span class="na">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-59" name="__codelineno-38-59" href="#__codelineno-38-59"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-60" name="__codelineno-38-60" href="#__codelineno-38-60"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">keySet</span>
|
||||
<a id="__codelineno-38-61" name="__codelineno-38-61" href="#__codelineno-38-61"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-62" name="__codelineno-38-62" href="#__codelineno-38-62"></a>
|
||||
<a id="__codelineno-38-63" name="__codelineno-38-63" href="#__codelineno-38-63"></a><span class="w"> </span><span class="cm">/* 获取所有值 */</span>
|
||||
<a id="__codelineno-38-64" name="__codelineno-38-64" href="#__codelineno-38-64"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">valueSet</span><span class="p">():</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">String</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-65" name="__codelineno-38-65" href="#__codelineno-38-65"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">valueSet</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><</span><span class="kt">String</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-38-66" name="__codelineno-38-66" href="#__codelineno-38-66"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">buckets</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-67" name="__codelineno-38-67" href="#__codelineno-38-67"></a><span class="w"> </span><span class="n">pair</span><span class="o">?.</span><span class="na">let</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="n">valueSet</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="nb">it</span><span class="p">.</span><span class="na">value</span><span class="p">)</span><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-68" name="__codelineno-38-68" href="#__codelineno-38-68"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-69" name="__codelineno-38-69" href="#__codelineno-38-69"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">valueSet</span>
|
||||
<a id="__codelineno-38-70" name="__codelineno-38-70" href="#__codelineno-38-70"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-71" name="__codelineno-38-71" href="#__codelineno-38-71"></a>
|
||||
<a id="__codelineno-38-72" name="__codelineno-38-72" href="#__codelineno-38-72"></a><span class="w"> </span><span class="cm">/* 打印哈希表 */</span>
|
||||
<a id="__codelineno-38-73" name="__codelineno-38-73" href="#__codelineno-38-73"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">print</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-74" name="__codelineno-38-74" href="#__codelineno-38-74"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">kv</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">pairSet</span><span class="p">())</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-75" name="__codelineno-38-75" href="#__codelineno-38-75"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">key</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">kv</span><span class="p">.</span><span class="na">key</span>
|
||||
<a id="__codelineno-38-76" name="__codelineno-38-76" href="#__codelineno-38-76"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">kv</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-38-77" name="__codelineno-38-77" href="#__codelineno-38-77"></a><span class="w"> </span><span class="n">println</span><span class="p">(</span><span class="s">"</span><span class="si">${</span><span class="n">key</span><span class="si">}</span><span class="s">-></span><span class="si">${</span><span class="n">value</span><span class="si">}</span><span class="s">"</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-78" name="__codelineno-38-78" href="#__codelineno-38-78"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-79" name="__codelineno-38-79" href="#__codelineno-38-79"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-80" name="__codelineno-38-80" href="#__codelineno-38-80"></a><span class="p">}</span>
|
||||
<a id="__codelineno-38-81" name="__codelineno-38-81" href="#__codelineno-38-81"></a>
|
||||
<a id="__codelineno-38-82" name="__codelineno-38-82" href="#__codelineno-38-82"></a><span class="cm">/* 基于数组实现的哈希表 */</span>
|
||||
<a id="__codelineno-38-83" name="__codelineno-38-83" href="#__codelineno-38-83"></a><span class="kd">class</span><span class="w"> </span><span class="nc">ArrayHashMap</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-84" name="__codelineno-38-84" href="#__codelineno-38-84"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">buckets</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arrayOfNulls</span><span class="o"><</span><span class="n">Pair</span><span class="o">></span><span class="p">(</span><span class="m">100</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-85" name="__codelineno-38-85" href="#__codelineno-38-85"></a>
|
||||
<a id="__codelineno-38-86" name="__codelineno-38-86" href="#__codelineno-38-86"></a><span class="w"> </span><span class="k">init</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-87" name="__codelineno-38-87" href="#__codelineno-38-87"></a><span class="w"> </span><span class="c1">// 初始化数组，包含 100 个桶</span>
|
||||
<a id="__codelineno-38-88" name="__codelineno-38-88" href="#__codelineno-38-88"></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="m">100</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-89" name="__codelineno-38-89" href="#__codelineno-38-89"></a><span class="w"> </span><span class="n">buckets</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="kc">null</span>
|
||||
<a id="__codelineno-38-90" name="__codelineno-38-90" href="#__codelineno-38-90"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-91" name="__codelineno-38-91" href="#__codelineno-38-91"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-92" name="__codelineno-38-92" href="#__codelineno-38-92"></a>
|
||||
<a id="__codelineno-38-93" name="__codelineno-38-93" href="#__codelineno-38-93"></a><span class="w"> </span><span class="cm">/* 哈希函数 */</span>
|
||||
<a id="__codelineno-38-94" name="__codelineno-38-94" href="#__codelineno-38-94"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">hashFunc</span><span class="p">(</span><span class="n">key</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-38-95" name="__codelineno-38-95" href="#__codelineno-38-95"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">key</span><span class="w"> </span><span class="o">%</span><span class="w"> </span><span class="m">100</span>
|
||||
<a id="__codelineno-38-96" name="__codelineno-38-96" href="#__codelineno-38-96"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">index</span>
|
||||
<a id="__codelineno-38-97" name="__codelineno-38-97" href="#__codelineno-38-97"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-98" name="__codelineno-38-98" href="#__codelineno-38-98"></a>
|
||||
<a id="__codelineno-38-99" name="__codelineno-38-99" href="#__codelineno-38-99"></a><span class="w"> </span><span class="cm">/* 查询操作 */</span>
|
||||
<a id="__codelineno-38-100" name="__codelineno-38-100" href="#__codelineno-38-100"></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">key</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">String?</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-101" name="__codelineno-38-101" href="#__codelineno-38-101"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">hashFunc</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-102" name="__codelineno-38-102" href="#__codelineno-38-102"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">pair</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">buckets</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="k">return</span><span class="w"> </span><span class="kc">null</span>
|
||||
<a id="__codelineno-38-103" name="__codelineno-38-103" href="#__codelineno-38-103"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">pair</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-38-104" name="__codelineno-38-104" href="#__codelineno-38-104"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-105" name="__codelineno-38-105" href="#__codelineno-38-105"></a>
|
||||
<a id="__codelineno-38-106" name="__codelineno-38-106" href="#__codelineno-38-106"></a><span class="w"> </span><span class="cm">/* 添加操作 */</span>
|
||||
<a id="__codelineno-38-107" name="__codelineno-38-107" href="#__codelineno-38-107"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">put</span><span class="p">(</span><span class="n">key</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">value</span><span class="p">:</span><span class="w"> </span><span class="kt">String</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-108" name="__codelineno-38-108" href="#__codelineno-38-108"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">pair</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Pair</span><span class="p">(</span><span class="n">key</span><span class="p">,</span><span class="w"> </span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-109" name="__codelineno-38-109" href="#__codelineno-38-109"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">hashFunc</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-110" name="__codelineno-38-110" href="#__codelineno-38-110"></a><span class="w"> </span><span class="n">buckets</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">pair</span>
|
||||
<a id="__codelineno-38-111" name="__codelineno-38-111" href="#__codelineno-38-111"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-112" name="__codelineno-38-112" href="#__codelineno-38-112"></a>
|
||||
<a id="__codelineno-38-113" name="__codelineno-38-113" href="#__codelineno-38-113"></a><span class="w"> </span><span class="cm">/* 删除操作 */</span>
|
||||
<a id="__codelineno-38-114" name="__codelineno-38-114" href="#__codelineno-38-114"></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">key</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-38-115" name="__codelineno-38-115" href="#__codelineno-38-115"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">hashFunc</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-116" name="__codelineno-38-116" href="#__codelineno-38-116"></a><span class="w"> </span><span class="c1">// 置为 null ，代表删除</span>
|
||||
<a id="__codelineno-38-117" name="__codelineno-38-117" href="#__codelineno-38-117"></a><span class="w"> </span><span class="n">buckets</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="kc">null</span>
|
||||
<a id="__codelineno-38-35" name="__codelineno-38-35" href="#__codelineno-38-35"></a><span class="w"> </span><span class="c1">// 置为 null ，代表删除</span>
|
||||
<a id="__codelineno-38-36" name="__codelineno-38-36" href="#__codelineno-38-36"></a><span class="w"> </span><span class="n">buckets</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="kc">null</span>
|
||||
<a id="__codelineno-38-37" name="__codelineno-38-37" href="#__codelineno-38-37"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-38" name="__codelineno-38-38" href="#__codelineno-38-38"></a>
|
||||
<a id="__codelineno-38-39" name="__codelineno-38-39" href="#__codelineno-38-39"></a><span class="w"> </span><span class="cm">/* 获取所有键值对 */</span>
|
||||
<a id="__codelineno-38-40" name="__codelineno-38-40" href="#__codelineno-38-40"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">pairSet</span><span class="p">():</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="n">Pair</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-41" name="__codelineno-38-41" href="#__codelineno-38-41"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">pairSet</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="n">Pair</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-38-42" name="__codelineno-38-42" href="#__codelineno-38-42"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">buckets</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-43" name="__codelineno-38-43" href="#__codelineno-38-43"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-44" name="__codelineno-38-44" href="#__codelineno-38-44"></a><span class="w"> </span><span class="n">pairSet</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">pair</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-45" name="__codelineno-38-45" href="#__codelineno-38-45"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-46" name="__codelineno-38-46" href="#__codelineno-38-46"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">pairSet</span>
|
||||
<a id="__codelineno-38-47" name="__codelineno-38-47" href="#__codelineno-38-47"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-48" name="__codelineno-38-48" href="#__codelineno-38-48"></a>
|
||||
<a id="__codelineno-38-49" name="__codelineno-38-49" href="#__codelineno-38-49"></a><span class="w"> </span><span class="cm">/* 获取所有键 */</span>
|
||||
<a id="__codelineno-38-50" name="__codelineno-38-50" href="#__codelineno-38-50"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">keySet</span><span class="p">():</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-51" name="__codelineno-38-51" href="#__codelineno-38-51"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">keySet</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-38-52" name="__codelineno-38-52" href="#__codelineno-38-52"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">buckets</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-53" name="__codelineno-38-53" href="#__codelineno-38-53"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-54" name="__codelineno-38-54" href="#__codelineno-38-54"></a><span class="w"> </span><span class="n">keySet</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">pair</span><span class="p">.</span><span class="na">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-55" name="__codelineno-38-55" href="#__codelineno-38-55"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-56" name="__codelineno-38-56" href="#__codelineno-38-56"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">keySet</span>
|
||||
<a id="__codelineno-38-57" name="__codelineno-38-57" href="#__codelineno-38-57"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-58" name="__codelineno-38-58" href="#__codelineno-38-58"></a>
|
||||
<a id="__codelineno-38-59" name="__codelineno-38-59" href="#__codelineno-38-59"></a><span class="w"> </span><span class="cm">/* 获取所有值 */</span>
|
||||
<a id="__codelineno-38-60" name="__codelineno-38-60" href="#__codelineno-38-60"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">valueSet</span><span class="p">():</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">String</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-61" name="__codelineno-38-61" href="#__codelineno-38-61"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">valueSet</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="kt">String</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-38-62" name="__codelineno-38-62" href="#__codelineno-38-62"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">buckets</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-63" name="__codelineno-38-63" href="#__codelineno-38-63"></a><span class="w"> </span><span class="n">pair</span><span class="o">?.</span><span class="na">let</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="n">valueSet</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="nb">it</span><span class="p">.</span><span class="na">value</span><span class="p">)</span><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-64" name="__codelineno-38-64" href="#__codelineno-38-64"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-65" name="__codelineno-38-65" href="#__codelineno-38-65"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">valueSet</span>
|
||||
<a id="__codelineno-38-66" name="__codelineno-38-66" href="#__codelineno-38-66"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-67" name="__codelineno-38-67" href="#__codelineno-38-67"></a>
|
||||
<a id="__codelineno-38-68" name="__codelineno-38-68" href="#__codelineno-38-68"></a><span class="w"> </span><span class="cm">/* 打印哈希表 */</span>
|
||||
<a id="__codelineno-38-69" name="__codelineno-38-69" href="#__codelineno-38-69"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">print</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-70" name="__codelineno-38-70" href="#__codelineno-38-70"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">kv</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">pairSet</span><span class="p">())</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-71" name="__codelineno-38-71" href="#__codelineno-38-71"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">key</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">kv</span><span class="p">.</span><span class="na">key</span>
|
||||
<a id="__codelineno-38-72" name="__codelineno-38-72" href="#__codelineno-38-72"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">kv</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-38-73" name="__codelineno-38-73" href="#__codelineno-38-73"></a><span class="w"> </span><span class="n">println</span><span class="p">(</span><span class="s">"</span><span class="si">${</span><span class="n">key</span><span class="si">}</span><span class="s"> -> </span><span class="si">${</span><span class="n">value</span><span class="si">}</span><span class="s">"</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-74" name="__codelineno-38-74" href="#__codelineno-38-74"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-75" name="__codelineno-38-75" href="#__codelineno-38-75"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-76" name="__codelineno-38-76" href="#__codelineno-38-76"></a><span class="p">}</span>
|
||||
<a id="__codelineno-38-77" name="__codelineno-38-77" href="#__codelineno-38-77"></a>
|
||||
<a id="__codelineno-38-78" name="__codelineno-38-78" href="#__codelineno-38-78"></a><span class="cm">/* 基于数组实现的哈希表 */</span>
|
||||
<a id="__codelineno-38-79" name="__codelineno-38-79" href="#__codelineno-38-79"></a><span class="kd">class</span><span class="w"> </span><span class="nc">ArrayHashMap</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-80" name="__codelineno-38-80" href="#__codelineno-38-80"></a><span class="w"> </span><span class="c1">// 初始化数组，包含 100 个桶</span>
|
||||
<a id="__codelineno-38-81" name="__codelineno-38-81" href="#__codelineno-38-81"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">buckets</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">arrayOfNulls</span><span class="o"><</span><span class="n">Pair</span><span class="o">></span><span class="p">(</span><span class="m">100</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-82" name="__codelineno-38-82" href="#__codelineno-38-82"></a>
|
||||
<a id="__codelineno-38-83" name="__codelineno-38-83" href="#__codelineno-38-83"></a><span class="w"> </span><span class="cm">/* 哈希函数 */</span>
|
||||
<a id="__codelineno-38-84" name="__codelineno-38-84" href="#__codelineno-38-84"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">hashFunc</span><span class="p">(</span><span class="n">key</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-38-85" name="__codelineno-38-85" href="#__codelineno-38-85"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">key</span><span class="w"> </span><span class="o">%</span><span class="w"> </span><span class="m">100</span>
|
||||
<a id="__codelineno-38-86" name="__codelineno-38-86" href="#__codelineno-38-86"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">index</span>
|
||||
<a id="__codelineno-38-87" name="__codelineno-38-87" href="#__codelineno-38-87"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-88" name="__codelineno-38-88" href="#__codelineno-38-88"></a>
|
||||
<a id="__codelineno-38-89" name="__codelineno-38-89" href="#__codelineno-38-89"></a><span class="w"> </span><span class="cm">/* 查询操作 */</span>
|
||||
<a id="__codelineno-38-90" name="__codelineno-38-90" href="#__codelineno-38-90"></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">key</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">String?</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-91" name="__codelineno-38-91" href="#__codelineno-38-91"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">hashFunc</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-92" name="__codelineno-38-92" href="#__codelineno-38-92"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">pair</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">buckets</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="k">return</span><span class="w"> </span><span class="kc">null</span>
|
||||
<a id="__codelineno-38-93" name="__codelineno-38-93" href="#__codelineno-38-93"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">pair</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-38-94" name="__codelineno-38-94" href="#__codelineno-38-94"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-95" name="__codelineno-38-95" href="#__codelineno-38-95"></a>
|
||||
<a id="__codelineno-38-96" name="__codelineno-38-96" href="#__codelineno-38-96"></a><span class="w"> </span><span class="cm">/* 添加操作 */</span>
|
||||
<a id="__codelineno-38-97" name="__codelineno-38-97" href="#__codelineno-38-97"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">put</span><span class="p">(</span><span class="n">key</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">value</span><span class="p">:</span><span class="w"> </span><span class="kt">String</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-98" name="__codelineno-38-98" href="#__codelineno-38-98"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">pair</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Pair</span><span class="p">(</span><span class="n">key</span><span class="p">,</span><span class="w"> </span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-99" name="__codelineno-38-99" href="#__codelineno-38-99"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">hashFunc</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-100" name="__codelineno-38-100" href="#__codelineno-38-100"></a><span class="w"> </span><span class="n">buckets</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">pair</span>
|
||||
<a id="__codelineno-38-101" name="__codelineno-38-101" href="#__codelineno-38-101"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-102" name="__codelineno-38-102" href="#__codelineno-38-102"></a>
|
||||
<a id="__codelineno-38-103" name="__codelineno-38-103" href="#__codelineno-38-103"></a><span class="w"> </span><span class="cm">/* 删除操作 */</span>
|
||||
<a id="__codelineno-38-104" name="__codelineno-38-104" href="#__codelineno-38-104"></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">key</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-38-105" name="__codelineno-38-105" href="#__codelineno-38-105"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">index</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">hashFunc</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-106" name="__codelineno-38-106" href="#__codelineno-38-106"></a><span class="w"> </span><span class="c1">// 置为 null ，代表删除</span>
|
||||
<a id="__codelineno-38-107" name="__codelineno-38-107" href="#__codelineno-38-107"></a><span class="w"> </span><span class="n">buckets</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="kc">null</span>
|
||||
<a id="__codelineno-38-108" name="__codelineno-38-108" href="#__codelineno-38-108"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-109" name="__codelineno-38-109" href="#__codelineno-38-109"></a>
|
||||
<a id="__codelineno-38-110" name="__codelineno-38-110" href="#__codelineno-38-110"></a><span class="w"> </span><span class="cm">/* 获取所有键值对 */</span>
|
||||
<a id="__codelineno-38-111" name="__codelineno-38-111" href="#__codelineno-38-111"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">pairSet</span><span class="p">():</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="n">Pair</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-112" name="__codelineno-38-112" href="#__codelineno-38-112"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">pairSet</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="n">Pair</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-38-113" name="__codelineno-38-113" href="#__codelineno-38-113"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">buckets</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-114" name="__codelineno-38-114" href="#__codelineno-38-114"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-115" name="__codelineno-38-115" href="#__codelineno-38-115"></a><span class="w"> </span><span class="n">pairSet</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">pair</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-116" name="__codelineno-38-116" href="#__codelineno-38-116"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-117" name="__codelineno-38-117" href="#__codelineno-38-117"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">pairSet</span>
|
||||
<a id="__codelineno-38-118" name="__codelineno-38-118" href="#__codelineno-38-118"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-119" name="__codelineno-38-119" href="#__codelineno-38-119"></a>
|
||||
<a id="__codelineno-38-120" name="__codelineno-38-120" href="#__codelineno-38-120"></a><span class="w"> </span><span class="cm">/* 获取所有键值对 */</span>
|
||||
<a id="__codelineno-38-121" name="__codelineno-38-121" href="#__codelineno-38-121"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">pairSet</span><span class="p">():</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="n">Pair</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-122" name="__codelineno-38-122" href="#__codelineno-38-122"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">pairSet</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><</span><span class="n">Pair</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-38-120" name="__codelineno-38-120" href="#__codelineno-38-120"></a><span class="w"> </span><span class="cm">/* 获取所有键 */</span>
|
||||
<a id="__codelineno-38-121" name="__codelineno-38-121" href="#__codelineno-38-121"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">keySet</span><span class="p">():</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-122" name="__codelineno-38-122" href="#__codelineno-38-122"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">keySet</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-38-123" name="__codelineno-38-123" href="#__codelineno-38-123"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">buckets</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-124" name="__codelineno-38-124" href="#__codelineno-38-124"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="n">pairSet</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">pair</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-125" name="__codelineno-38-125" href="#__codelineno-38-125"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-126" name="__codelineno-38-126" href="#__codelineno-38-126"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">pairSet</span>
|
||||
<a id="__codelineno-38-127" name="__codelineno-38-127" href="#__codelineno-38-127"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-128" name="__codelineno-38-128" href="#__codelineno-38-128"></a>
|
||||
<a id="__codelineno-38-129" name="__codelineno-38-129" href="#__codelineno-38-129"></a><span class="w"> </span><span class="cm">/* 获取所有键 */</span>
|
||||
<a id="__codelineno-38-130" name="__codelineno-38-130" href="#__codelineno-38-130"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">keySet</span><span class="p">():</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-131" name="__codelineno-38-131" href="#__codelineno-38-131"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">keySet</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-38-132" name="__codelineno-38-132" href="#__codelineno-38-132"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">buckets</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-133" name="__codelineno-38-133" href="#__codelineno-38-133"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="n">keySet</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">pair</span><span class="p">.</span><span class="na">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-134" name="__codelineno-38-134" href="#__codelineno-38-134"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-135" name="__codelineno-38-135" href="#__codelineno-38-135"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">keySet</span>
|
||||
<a id="__codelineno-38-136" name="__codelineno-38-136" href="#__codelineno-38-136"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-137" name="__codelineno-38-137" href="#__codelineno-38-137"></a>
|
||||
<a id="__codelineno-38-138" name="__codelineno-38-138" href="#__codelineno-38-138"></a><span class="w"> </span><span class="cm">/* 获取所有值 */</span>
|
||||
<a id="__codelineno-38-139" name="__codelineno-38-139" href="#__codelineno-38-139"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">valueSet</span><span class="p">():</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">String</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-140" name="__codelineno-38-140" href="#__codelineno-38-140"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">valueSet</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><</span><span class="kt">String</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-38-141" name="__codelineno-38-141" href="#__codelineno-38-141"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">buckets</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-142" name="__codelineno-38-142" href="#__codelineno-38-142"></a><span class="w"> </span><span class="n">pair</span><span class="o">?.</span><span class="na">let</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="n">valueSet</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="nb">it</span><span class="p">.</span><span class="na">value</span><span class="p">)</span><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-143" name="__codelineno-38-143" href="#__codelineno-38-143"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-144" name="__codelineno-38-144" href="#__codelineno-38-144"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">valueSet</span>
|
||||
<a id="__codelineno-38-145" name="__codelineno-38-145" href="#__codelineno-38-145"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-146" name="__codelineno-38-146" href="#__codelineno-38-146"></a>
|
||||
<a id="__codelineno-38-147" name="__codelineno-38-147" href="#__codelineno-38-147"></a><span class="w"> </span><span class="cm">/* 打印哈希表 */</span>
|
||||
<a id="__codelineno-38-148" name="__codelineno-38-148" href="#__codelineno-38-148"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">print</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-149" name="__codelineno-38-149" href="#__codelineno-38-149"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">kv</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">pairSet</span><span class="p">())</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-150" name="__codelineno-38-150" href="#__codelineno-38-150"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">key</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">kv</span><span class="p">.</span><span class="na">key</span>
|
||||
<a id="__codelineno-38-151" name="__codelineno-38-151" href="#__codelineno-38-151"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">kv</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-38-152" name="__codelineno-38-152" href="#__codelineno-38-152"></a><span class="w"> </span><span class="n">println</span><span class="p">(</span><span class="s">"</span><span class="si">${</span><span class="n">key</span><span class="si">}</span><span class="s">-></span><span class="si">${</span><span class="n">value</span><span class="si">}</span><span class="s">"</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-153" name="__codelineno-38-153" href="#__codelineno-38-153"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-154" name="__codelineno-38-154" href="#__codelineno-38-154"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-155" name="__codelineno-38-155" href="#__codelineno-38-155"></a><span class="p">}</span>
|
||||
<a id="__codelineno-38-124" name="__codelineno-38-124" href="#__codelineno-38-124"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-125" name="__codelineno-38-125" href="#__codelineno-38-125"></a><span class="w"> </span><span class="n">keySet</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">pair</span><span class="p">.</span><span class="na">key</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-126" name="__codelineno-38-126" href="#__codelineno-38-126"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-127" name="__codelineno-38-127" href="#__codelineno-38-127"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">keySet</span>
|
||||
<a id="__codelineno-38-128" name="__codelineno-38-128" href="#__codelineno-38-128"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-129" name="__codelineno-38-129" href="#__codelineno-38-129"></a>
|
||||
<a id="__codelineno-38-130" name="__codelineno-38-130" href="#__codelineno-38-130"></a><span class="w"> </span><span class="cm">/* 获取所有值 */</span>
|
||||
<a id="__codelineno-38-131" name="__codelineno-38-131" href="#__codelineno-38-131"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">valueSet</span><span class="p">():</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">String</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-132" name="__codelineno-38-132" href="#__codelineno-38-132"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">valueSet</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="kt">String</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-38-133" name="__codelineno-38-133" href="#__codelineno-38-133"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">pair</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">buckets</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-134" name="__codelineno-38-134" href="#__codelineno-38-134"></a><span class="w"> </span><span class="n">pair</span><span class="o">?.</span><span class="na">let</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="n">valueSet</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="nb">it</span><span class="p">.</span><span class="na">value</span><span class="p">)</span><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-135" name="__codelineno-38-135" href="#__codelineno-38-135"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-136" name="__codelineno-38-136" href="#__codelineno-38-136"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">valueSet</span>
|
||||
<a id="__codelineno-38-137" name="__codelineno-38-137" href="#__codelineno-38-137"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-138" name="__codelineno-38-138" href="#__codelineno-38-138"></a>
|
||||
<a id="__codelineno-38-139" name="__codelineno-38-139" href="#__codelineno-38-139"></a><span class="w"> </span><span class="cm">/* 打印哈希表 */</span>
|
||||
<a id="__codelineno-38-140" name="__codelineno-38-140" href="#__codelineno-38-140"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">print</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-141" name="__codelineno-38-141" href="#__codelineno-38-141"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">kv</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">pairSet</span><span class="p">())</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-142" name="__codelineno-38-142" href="#__codelineno-38-142"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">key</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">kv</span><span class="p">.</span><span class="na">key</span>
|
||||
<a id="__codelineno-38-143" name="__codelineno-38-143" href="#__codelineno-38-143"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">kv</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-38-144" name="__codelineno-38-144" href="#__codelineno-38-144"></a><span class="w"> </span><span class="n">println</span><span class="p">(</span><span class="s">"</span><span class="si">${</span><span class="n">key</span><span class="si">}</span><span class="s"> -> </span><span class="si">${</span><span class="n">value</span><span class="si">}</span><span class="s">"</span><span class="p">)</span>
|
||||
<a id="__codelineno-38-145" name="__codelineno-38-145" href="#__codelineno-38-145"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-146" name="__codelineno-38-146" href="#__codelineno-38-146"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-147" name="__codelineno-38-147" href="#__codelineno-38-147"></a><span class="p">}</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
|
||||
@@ -2081,12 +2081,12 @@
|
||||
<ul>
|
||||
<li>Given an input <code>key</code>, a hash table can retrieve the corresponding <code>value</code> in <span class="arithmatex">\(O(1)\)</span> time, which is highly efficient.</li>
|
||||
<li>Common hash table operations include querying, adding key-value pairs, deleting key-value pairs, and traversing the hash table.</li>
|
||||
<li>The hash function maps a <code>key</code> to an array index, allowing access to the corresponding bucket to retrieve the <code>value</code>.</li>
|
||||
<li>The hash function maps a <code>key</code> to an array index, allowing access to the corresponding bucket and retrieval of the <code>value</code>.</li>
|
||||
<li>Two different keys may end up with the same array index after hashing, leading to erroneous query results. This phenomenon is known as hash collision.</li>
|
||||
<li>The larger the capacity of the hash table, the lower the probability of hash collisions. Therefore, hash table resizing can mitigate hash collisions. Similar to array resizing, hash table resizing is costly.</li>
|
||||
<li>Load factor, defined as the ratio of the number of elements to the number of buckets in the hash table, reflects the severity of hash collisions and is often used as a trigger for resizing the hash table.</li>
|
||||
<li>The load factor, defined as the number of elements divided by the number of buckets, reflects the severity of hash collisions and is often used as a condition to trigger hash table resizing.</li>
|
||||
<li>Chaining addresses hash collisions by converting each element into a linked list, storing all colliding elements in the same list. However, excessively long lists can reduce query efficiency, which can be improved by converting the lists into red-black trees.</li>
|
||||
<li>Open addressing handles hash collisions through multiple probes. Linear probing uses a fixed step size but cannot delete elements and is prone to clustering. Multiple hashing uses several hash functions for probing, making it less susceptible to clustering but increasing computational load.</li>
|
||||
<li>Open addressing handles hash collisions through multiple probes. Linear probing uses a fixed step size but it cannot delete elements and is prone to clustering. Multiple hashing uses several hash functions for probing which reduces clustering compared to linear probing but increases computational overhead.</li>
|
||||
<li>Different programming languages adopt various hash table implementations. For example, Java's <code>HashMap</code> uses chaining, while Python's <code>dict</code> employs open addressing.</li>
|
||||
<li>In hash tables, we desire hash algorithms with determinism, high efficiency, and uniform distribution. In cryptography, hash algorithms should also possess collision resistance and the avalanche effect.</li>
|
||||
<li>Hash algorithms typically use large prime numbers as moduli to ensure uniform distribution of hash values and reduce hash collisions.</li>
|
||||
@@ -2098,9 +2098,9 @@
|
||||
<p>The time complexity of a hash table can degrade to <span class="arithmatex">\(O(n)\)</span> when hash collisions are severe. When the hash function is well-designed, the capacity is set appropriately, and collisions are evenly distributed, the time complexity is <span class="arithmatex">\(O(1)\)</span>. We usually consider the time complexity to be <span class="arithmatex">\(O(1)\)</span> when using built-in hash tables in programming languages.</p>
|
||||
<p><strong>Q</strong>: Why not use the hash function <span class="arithmatex">\(f(x) = x\)</span>? This would eliminate collisions.</p>
|
||||
<p>Under the hash function <span class="arithmatex">\(f(x) = x\)</span>, each element corresponds to a unique bucket index, which is equivalent to an array. However, the input space is usually much larger than the output space (array length), so the last step of a hash function is often to take the modulo of the array length. In other words, the goal of a hash table is to map a larger state space to a smaller one while providing <span class="arithmatex">\(O(1)\)</span> query efficiency.</p>
|
||||
<p><strong>Q</strong>: Why can hash tables be more efficient than arrays, linked lists, or binary trees, even though they are implemented using these structures?</p>
|
||||
<p><strong>Q</strong>: Why can hash tables be more efficient than arrays, linked lists, or binary trees, even though hash tables are implemented using these structures?</p>
|
||||
<p>Firstly, hash tables have higher time efficiency but lower space efficiency. A significant portion of memory in hash tables remains unused.</p>
|
||||
<p>Secondly, they are only more efficient in specific use cases. If a feature can be implemented with the same time complexity using an array or a linked list, it's usually faster than using a hash table. This is because the computation of the hash function incurs overhead, making the constant factor in the time complexity larger.</p>
|
||||
<p>Secondly, hash tables are only more time-efficient in specific use cases. If a feature can be implemented with the same time complexity using an array or a linked list, it's usually faster than using a hash table. This is because the computation of the hash function incurs overhead, making the constant factor in the time complexity larger.</p>
|
||||
<p>Lastly, the time complexity of hash tables can degrade. For example, in chaining, we perform search operations in a linked list or red-black tree, which still risks degrading to <span class="arithmatex">\(O(n)\)</span> time.</p>
|
||||
<p><strong>Q</strong>: Does multiple hashing also have the flaw of not being able to delete elements directly? Can space marked as deleted be reused?</p>
|
||||
<p>Multiple hashing is a form of open addressing, and all open addressing methods have the drawback of not being able to delete elements directly; they require marking elements as deleted. Marked spaces can be reused. When inserting new elements into the hash table, and the hash function points to a position marked as deleted, that position can be used by the new element. This maintains the probing sequence of the hash table while ensuring efficient use of space.</p>
|
||||
|
||||
@@ -2249,120 +2249,121 @@
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
<div class="highlight"><span class="filename">my_heap.kt</span><pre><span></span><code><a id="__codelineno-11-1" name="__codelineno-11-1" href="#__codelineno-11-1"></a><span class="cm">/* 大顶堆 */</span>
|
||||
<a id="__codelineno-11-2" name="__codelineno-11-2" href="#__codelineno-11-2"></a><span class="kd">class</span><span class="w"> </span><span class="nc">MaxHeap</span><span class="p">(</span><span class="n">nums</span><span class="p">:</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="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-2" name="__codelineno-11-2" href="#__codelineno-11-2"></a><span class="kd">class</span><span class="w"> </span><span class="nc">MaxHeap</span><span class="p">(</span><span class="n">nums</span><span class="p">:</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">Int</span><span class="o">>?</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-3" name="__codelineno-11-3" href="#__codelineno-11-3"></a><span class="w"> </span><span class="c1">// 使用列表而非数组，这样无须考虑扩容问题</span>
|
||||
<a id="__codelineno-11-4" name="__codelineno-11-4" href="#__codelineno-11-4"></a><span class="w"> </span><span class="c1">// 将列表元素原封不动添加进堆</span>
|
||||
<a id="__codelineno-11-5" name="__codelineno-11-5" href="#__codelineno-11-5"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">maxHeap</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="p">(</span><span class="n">nums</span><span class="o">!!</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-6" name="__codelineno-11-6" href="#__codelineno-11-6"></a>
|
||||
<a id="__codelineno-11-7" name="__codelineno-11-7" href="#__codelineno-11-7"></a><span class="w"> </span><span class="cm">/* 构造函数，根据输入列表建堆 */</span>
|
||||
<a id="__codelineno-11-8" name="__codelineno-11-8" href="#__codelineno-11-8"></a><span class="w"> </span><span class="k">init</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-9" name="__codelineno-11-9" href="#__codelineno-11-9"></a><span class="w"> </span><span class="c1">// 堆化除叶节点以外的其他所有节点</span>
|
||||
<a id="__codelineno-11-10" name="__codelineno-11-10" href="#__codelineno-11-10"></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="n">parent</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="m">1</span><span class="p">)</span><span class="w"> </span><span class="n">downTo</span><span class="w"> </span><span class="m">0</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-11" name="__codelineno-11-11" href="#__codelineno-11-11"></a><span class="w"> </span><span class="n">siftDown</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-12" name="__codelineno-11-12" href="#__codelineno-11-12"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-13" name="__codelineno-11-13" href="#__codelineno-11-13"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-14" name="__codelineno-11-14" href="#__codelineno-11-14"></a>
|
||||
<a id="__codelineno-11-15" name="__codelineno-11-15" href="#__codelineno-11-15"></a><span class="w"> </span><span class="cm">/* 获取左子节点的索引 */</span>
|
||||
<a id="__codelineno-11-16" name="__codelineno-11-16" href="#__codelineno-11-16"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">left</span><span class="p">(</span><span class="n">i</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-11-17" name="__codelineno-11-17" href="#__codelineno-11-17"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="m">2</span><span class="w"> </span><span class="o">*</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">1</span>
|
||||
<a id="__codelineno-11-18" name="__codelineno-11-18" href="#__codelineno-11-18"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-19" name="__codelineno-11-19" href="#__codelineno-11-19"></a>
|
||||
<a id="__codelineno-11-20" name="__codelineno-11-20" href="#__codelineno-11-20"></a><span class="w"> </span><span class="cm">/* 获取右子节点的索引 */</span>
|
||||
<a id="__codelineno-11-21" name="__codelineno-11-21" href="#__codelineno-11-21"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">right</span><span class="p">(</span><span class="n">i</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-11-22" name="__codelineno-11-22" href="#__codelineno-11-22"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="m">2</span><span class="w"> </span><span class="o">*</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">2</span>
|
||||
<a id="__codelineno-11-23" name="__codelineno-11-23" href="#__codelineno-11-23"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-24" name="__codelineno-11-24" href="#__codelineno-11-24"></a>
|
||||
<a id="__codelineno-11-25" name="__codelineno-11-25" href="#__codelineno-11-25"></a><span class="w"> </span><span class="cm">/* 获取父节点的索引 */</span>
|
||||
<a id="__codelineno-11-26" name="__codelineno-11-26" href="#__codelineno-11-26"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">parent</span><span class="p">(</span><span class="n">i</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-11-27" name="__codelineno-11-27" href="#__codelineno-11-27"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="p">(</span><span class="n">i</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="m">2</span><span class="w"> </span><span class="c1">// 向下整除</span>
|
||||
<a id="__codelineno-11-28" name="__codelineno-11-28" href="#__codelineno-11-28"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-29" name="__codelineno-11-29" href="#__codelineno-11-29"></a>
|
||||
<a id="__codelineno-11-30" name="__codelineno-11-30" href="#__codelineno-11-30"></a><span class="w"> </span><span class="cm">/* 交换元素 */</span>
|
||||
<a id="__codelineno-11-31" name="__codelineno-11-31" href="#__codelineno-11-31"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">swap</span><span class="p">(</span><span class="n">i</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">j</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-11-32" name="__codelineno-11-32" href="#__codelineno-11-32"></a><span class="w"> </span><span class="n">maxHeap</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">maxHeap</span><span class="o">[</span><span class="n">j</span><span class="o">]</span><span class="p">.</span><span class="na">also</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="n">maxHeap</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">maxHeap</span><span class="o">[</span><span class="n">i</span><span class="o">]</span><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-33" name="__codelineno-11-33" href="#__codelineno-11-33"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-34" name="__codelineno-11-34" href="#__codelineno-11-34"></a>
|
||||
<a id="__codelineno-11-35" name="__codelineno-11-35" href="#__codelineno-11-35"></a><span class="w"> </span><span class="cm">/* 获取堆大小 */</span>
|
||||
<a id="__codelineno-11-36" name="__codelineno-11-36" href="#__codelineno-11-36"></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-11-37" name="__codelineno-11-37" href="#__codelineno-11-37"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">maxHeap</span><span class="p">.</span><span class="na">size</span>
|
||||
<a id="__codelineno-11-38" name="__codelineno-11-38" href="#__codelineno-11-38"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-39" name="__codelineno-11-39" href="#__codelineno-11-39"></a>
|
||||
<a id="__codelineno-11-40" name="__codelineno-11-40" href="#__codelineno-11-40"></a><span class="w"> </span><span class="cm">/* 判断堆是否为空 */</span>
|
||||
<a id="__codelineno-11-41" name="__codelineno-11-41" href="#__codelineno-11-41"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">isEmpty</span><span class="p">():</span><span class="w"> </span><span class="kt">Boolean</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-42" name="__codelineno-11-42" href="#__codelineno-11-42"></a><span class="w"> </span><span class="cm">/* 判断堆是否为空 */</span>
|
||||
<a id="__codelineno-11-43" name="__codelineno-11-43" href="#__codelineno-11-43"></a><span class="w"> </span><span class="k">return</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="m">0</span>
|
||||
<a id="__codelineno-11-44" name="__codelineno-11-44" href="#__codelineno-11-44"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-45" name="__codelineno-11-45" href="#__codelineno-11-45"></a>
|
||||
<a id="__codelineno-11-46" name="__codelineno-11-46" href="#__codelineno-11-46"></a><span class="w"> </span><span class="cm">/* 访问堆顶元素 */</span>
|
||||
<a id="__codelineno-11-47" name="__codelineno-11-47" href="#__codelineno-11-47"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">peek</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-11-48" name="__codelineno-11-48" href="#__codelineno-11-48"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">maxHeap</span><span class="o">[</span><span class="m">0</span><span class="o">]</span>
|
||||
<a id="__codelineno-11-49" name="__codelineno-11-49" href="#__codelineno-11-49"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-50" name="__codelineno-11-50" href="#__codelineno-11-50"></a>
|
||||
<a id="__codelineno-11-51" name="__codelineno-11-51" href="#__codelineno-11-51"></a><span class="w"> </span><span class="cm">/* 元素入堆 */</span>
|
||||
<a id="__codelineno-11-52" name="__codelineno-11-52" href="#__codelineno-11-52"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">push</span><span class="p">(</span><span class="n">value</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-11-53" name="__codelineno-11-53" href="#__codelineno-11-53"></a><span class="w"> </span><span class="c1">// 添加节点</span>
|
||||
<a id="__codelineno-11-54" name="__codelineno-11-54" href="#__codelineno-11-54"></a><span class="w"> </span><span class="n">maxHeap</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-55" name="__codelineno-11-55" href="#__codelineno-11-55"></a><span class="w"> </span><span class="c1">// 从底至顶堆化</span>
|
||||
<a id="__codelineno-11-56" name="__codelineno-11-56" href="#__codelineno-11-56"></a><span class="w"> </span><span class="n">siftUp</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="m">1</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-57" name="__codelineno-11-57" href="#__codelineno-11-57"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-58" name="__codelineno-11-58" href="#__codelineno-11-58"></a>
|
||||
<a id="__codelineno-11-59" name="__codelineno-11-59" href="#__codelineno-11-59"></a><span class="w"> </span><span class="cm">/* 从节点 i 开始，从底至顶堆化 */</span>
|
||||
<a id="__codelineno-11-60" name="__codelineno-11-60" href="#__codelineno-11-60"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">siftUp</span><span class="p">(</span><span class="nb">it</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-11-61" name="__codelineno-11-61" href="#__codelineno-11-61"></a><span class="w"> </span><span class="c1">// Kotlin的函数参数不可变，因此创建临时变量</span>
|
||||
<a id="__codelineno-11-62" name="__codelineno-11-62" href="#__codelineno-11-62"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">it</span>
|
||||
<a id="__codelineno-11-63" name="__codelineno-11-63" href="#__codelineno-11-63"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="kc">true</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-64" name="__codelineno-11-64" href="#__codelineno-11-64"></a><span class="w"> </span><span class="c1">// 获取节点 i 的父节点</span>
|
||||
<a id="__codelineno-11-65" name="__codelineno-11-65" href="#__codelineno-11-65"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">p</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">parent</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-66" name="__codelineno-11-66" href="#__codelineno-11-66"></a><span class="w"> </span><span class="c1">// 当“越过根节点”或“节点无须修复”时，结束堆化</span>
|
||||
<a id="__codelineno-11-67" name="__codelineno-11-67" href="#__codelineno-11-67"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">p</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">maxHeap</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">maxHeap</span><span class="o">[</span><span class="n">p</span><span class="o">]</span><span class="p">)</span><span class="w"> </span><span class="k">break</span>
|
||||
<a id="__codelineno-11-68" name="__codelineno-11-68" href="#__codelineno-11-68"></a><span class="w"> </span><span class="c1">// 交换两节点</span>
|
||||
<a id="__codelineno-11-69" name="__codelineno-11-69" href="#__codelineno-11-69"></a><span class="w"> </span><span class="n">swap</span><span class="p">(</span><span class="n">i</span><span class="p">,</span><span class="w"> </span><span class="n">p</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-70" name="__codelineno-11-70" href="#__codelineno-11-70"></a><span class="w"> </span><span class="c1">// 循环向上堆化</span>
|
||||
<a id="__codelineno-11-71" name="__codelineno-11-71" href="#__codelineno-11-71"></a><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">p</span>
|
||||
<a id="__codelineno-11-72" name="__codelineno-11-72" href="#__codelineno-11-72"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-73" name="__codelineno-11-73" href="#__codelineno-11-73"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-74" name="__codelineno-11-74" href="#__codelineno-11-74"></a>
|
||||
<a id="__codelineno-11-75" name="__codelineno-11-75" href="#__codelineno-11-75"></a><span class="w"> </span><span class="cm">/* 元素出堆 */</span>
|
||||
<a id="__codelineno-11-76" name="__codelineno-11-76" href="#__codelineno-11-76"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">pop</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-11-77" name="__codelineno-11-77" href="#__codelineno-11-77"></a><span class="w"> </span><span class="c1">// 判空处理</span>
|
||||
<a id="__codelineno-11-78" name="__codelineno-11-78" href="#__codelineno-11-78"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">isEmpty</span><span class="p">())</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">()</span>
|
||||
<a id="__codelineno-11-79" name="__codelineno-11-79" href="#__codelineno-11-79"></a><span class="w"> </span><span class="c1">// 交换根节点与最右叶节点（交换首元素与尾元素）</span>
|
||||
<a id="__codelineno-11-80" name="__codelineno-11-80" href="#__codelineno-11-80"></a><span class="w"> </span><span class="n">swap</span><span class="p">(</span><span class="m">0</span><span class="p">,</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="m">1</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-81" name="__codelineno-11-81" href="#__codelineno-11-81"></a><span class="w"> </span><span class="c1">// 删除节点</span>
|
||||
<a id="__codelineno-11-82" name="__codelineno-11-82" href="#__codelineno-11-82"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">maxHeap</span><span class="p">.</span><span class="na">removeAt</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="m">1</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-83" name="__codelineno-11-83" href="#__codelineno-11-83"></a><span class="w"> </span><span class="c1">// 从顶至底堆化</span>
|
||||
<a id="__codelineno-11-84" name="__codelineno-11-84" href="#__codelineno-11-84"></a><span class="w"> </span><span class="n">siftDown</span><span class="p">(</span><span class="m">0</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-85" name="__codelineno-11-85" href="#__codelineno-11-85"></a><span class="w"> </span><span class="c1">// 返回堆顶元素</span>
|
||||
<a id="__codelineno-11-86" name="__codelineno-11-86" href="#__codelineno-11-86"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">value</span>
|
||||
<a id="__codelineno-11-87" name="__codelineno-11-87" href="#__codelineno-11-87"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-88" name="__codelineno-11-88" href="#__codelineno-11-88"></a>
|
||||
<a id="__codelineno-11-89" name="__codelineno-11-89" href="#__codelineno-11-89"></a><span class="w"> </span><span class="cm">/* 从节点 i 开始，从顶至底堆化 */</span>
|
||||
<a id="__codelineno-11-90" name="__codelineno-11-90" href="#__codelineno-11-90"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">siftDown</span><span class="p">(</span><span class="nb">it</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-11-91" name="__codelineno-11-91" href="#__codelineno-11-91"></a><span class="w"> </span><span class="c1">// Kotlin的函数参数不可变，因此创建临时变量</span>
|
||||
<a id="__codelineno-11-92" name="__codelineno-11-92" href="#__codelineno-11-92"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">it</span>
|
||||
<a id="__codelineno-11-93" name="__codelineno-11-93" href="#__codelineno-11-93"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="kc">true</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-94" name="__codelineno-11-94" href="#__codelineno-11-94"></a><span class="w"> </span><span class="c1">// 判断节点 i, l, r 中值最大的节点，记为 ma</span>
|
||||
<a id="__codelineno-11-95" name="__codelineno-11-95" href="#__codelineno-11-95"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">l</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">left</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-96" name="__codelineno-11-96" href="#__codelineno-11-96"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">r</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">right</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-97" name="__codelineno-11-97" href="#__codelineno-11-97"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">ma</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">i</span>
|
||||
<a id="__codelineno-11-98" name="__codelineno-11-98" href="#__codelineno-11-98"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">l</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="n">maxHeap</span><span class="o">[</span><span class="n">l</span><span class="o">]</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="n">maxHeap</span><span class="o">[</span><span class="n">ma</span><span class="o">]</span><span class="p">)</span><span class="w"> </span><span class="n">ma</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">l</span>
|
||||
<a id="__codelineno-11-99" name="__codelineno-11-99" href="#__codelineno-11-99"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">r</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="n">maxHeap</span><span class="o">[</span><span class="n">r</span><span class="o">]</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="n">maxHeap</span><span class="o">[</span><span class="n">ma</span><span class="o">]</span><span class="p">)</span><span class="w"> </span><span class="n">ma</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">r</span>
|
||||
<a id="__codelineno-11-100" name="__codelineno-11-100" href="#__codelineno-11-100"></a><span class="w"> </span><span class="c1">// 若节点 i 最大或索引 l, r 越界，则无须继续堆化，跳出</span>
|
||||
<a id="__codelineno-11-101" name="__codelineno-11-101" href="#__codelineno-11-101"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">ma</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">i</span><span class="p">)</span><span class="w"> </span><span class="k">break</span>
|
||||
<a id="__codelineno-11-102" name="__codelineno-11-102" href="#__codelineno-11-102"></a><span class="w"> </span><span class="c1">// 交换两节点</span>
|
||||
<a id="__codelineno-11-103" name="__codelineno-11-103" href="#__codelineno-11-103"></a><span class="w"> </span><span class="n">swap</span><span class="p">(</span><span class="n">i</span><span class="p">,</span><span class="w"> </span><span class="n">ma</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-104" name="__codelineno-11-104" href="#__codelineno-11-104"></a><span class="w"> </span><span class="c1">// 循环向下堆化</span>
|
||||
<a id="__codelineno-11-105" name="__codelineno-11-105" href="#__codelineno-11-105"></a><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ma</span>
|
||||
<a id="__codelineno-11-106" name="__codelineno-11-106" href="#__codelineno-11-106"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-107" name="__codelineno-11-107" href="#__codelineno-11-107"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-108" name="__codelineno-11-108" href="#__codelineno-11-108"></a>
|
||||
<a id="__codelineno-11-109" name="__codelineno-11-109" href="#__codelineno-11-109"></a><span class="w"> </span><span class="cm">/* 打印堆（二叉树） */</span>
|
||||
<a id="__codelineno-11-110" name="__codelineno-11-110" href="#__codelineno-11-110"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">print</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-111" name="__codelineno-11-111" href="#__codelineno-11-111"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">queue</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">PriorityQueue</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="n">a</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">b</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="n">b</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="n">a</span><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-112" name="__codelineno-11-112" href="#__codelineno-11-112"></a><span class="w"> </span><span class="n">queue</span><span class="p">.</span><span class="na">addAll</span><span class="p">(</span><span class="n">maxHeap</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-113" name="__codelineno-11-113" href="#__codelineno-11-113"></a><span class="w"> </span><span class="n">printHeap</span><span class="p">(</span><span class="n">queue</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-114" name="__codelineno-11-114" href="#__codelineno-11-114"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-115" name="__codelineno-11-115" href="#__codelineno-11-115"></a><span class="p">}</span>
|
||||
<a id="__codelineno-11-4" name="__codelineno-11-4" href="#__codelineno-11-4"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">maxHeap</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-11-5" name="__codelineno-11-5" href="#__codelineno-11-5"></a>
|
||||
<a id="__codelineno-11-6" name="__codelineno-11-6" href="#__codelineno-11-6"></a><span class="w"> </span><span class="cm">/* 构造方法，根据输入列表建堆 */</span>
|
||||
<a id="__codelineno-11-7" name="__codelineno-11-7" href="#__codelineno-11-7"></a><span class="w"> </span><span class="k">init</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-8" name="__codelineno-11-8" href="#__codelineno-11-8"></a><span class="w"> </span><span class="c1">// 将列表元素原封不动添加进堆</span>
|
||||
<a id="__codelineno-11-9" name="__codelineno-11-9" href="#__codelineno-11-9"></a><span class="w"> </span><span class="n">maxHeap</span><span class="p">.</span><span class="na">addAll</span><span class="p">(</span><span class="n">nums</span><span class="o">!!</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-10" name="__codelineno-11-10" href="#__codelineno-11-10"></a><span class="w"> </span><span class="c1">// 堆化除叶节点以外的其他所有节点</span>
|
||||
<a id="__codelineno-11-11" name="__codelineno-11-11" href="#__codelineno-11-11"></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="n">parent</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="m">1</span><span class="p">)</span><span class="w"> </span><span class="n">downTo</span><span class="w"> </span><span class="m">0</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-12" name="__codelineno-11-12" href="#__codelineno-11-12"></a><span class="w"> </span><span class="n">siftDown</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-13" name="__codelineno-11-13" href="#__codelineno-11-13"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-14" name="__codelineno-11-14" href="#__codelineno-11-14"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-15" name="__codelineno-11-15" href="#__codelineno-11-15"></a>
|
||||
<a id="__codelineno-11-16" name="__codelineno-11-16" href="#__codelineno-11-16"></a><span class="w"> </span><span class="cm">/* 获取左子节点的索引 */</span>
|
||||
<a id="__codelineno-11-17" name="__codelineno-11-17" href="#__codelineno-11-17"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">left</span><span class="p">(</span><span class="n">i</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-11-18" name="__codelineno-11-18" href="#__codelineno-11-18"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="m">2</span><span class="w"> </span><span class="o">*</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">1</span>
|
||||
<a id="__codelineno-11-19" name="__codelineno-11-19" href="#__codelineno-11-19"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-20" name="__codelineno-11-20" href="#__codelineno-11-20"></a>
|
||||
<a id="__codelineno-11-21" name="__codelineno-11-21" href="#__codelineno-11-21"></a><span class="w"> </span><span class="cm">/* 获取右子节点的索引 */</span>
|
||||
<a id="__codelineno-11-22" name="__codelineno-11-22" href="#__codelineno-11-22"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">right</span><span class="p">(</span><span class="n">i</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-11-23" name="__codelineno-11-23" href="#__codelineno-11-23"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="m">2</span><span class="w"> </span><span class="o">*</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">2</span>
|
||||
<a id="__codelineno-11-24" name="__codelineno-11-24" href="#__codelineno-11-24"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-25" name="__codelineno-11-25" href="#__codelineno-11-25"></a>
|
||||
<a id="__codelineno-11-26" name="__codelineno-11-26" href="#__codelineno-11-26"></a><span class="w"> </span><span class="cm">/* 获取父节点的索引 */</span>
|
||||
<a id="__codelineno-11-27" name="__codelineno-11-27" href="#__codelineno-11-27"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">parent</span><span class="p">(</span><span class="n">i</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-11-28" name="__codelineno-11-28" href="#__codelineno-11-28"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="p">(</span><span class="n">i</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="m">2</span><span class="w"> </span><span class="c1">// 向下整除</span>
|
||||
<a id="__codelineno-11-29" name="__codelineno-11-29" href="#__codelineno-11-29"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-30" name="__codelineno-11-30" href="#__codelineno-11-30"></a>
|
||||
<a id="__codelineno-11-31" name="__codelineno-11-31" href="#__codelineno-11-31"></a><span class="w"> </span><span class="cm">/* 交换元素 */</span>
|
||||
<a id="__codelineno-11-32" name="__codelineno-11-32" href="#__codelineno-11-32"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">swap</span><span class="p">(</span><span class="n">i</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">j</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-11-33" name="__codelineno-11-33" href="#__codelineno-11-33"></a><span class="w"> </span><span class="n">maxHeap</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">maxHeap</span><span class="o">[</span><span class="n">j</span><span class="o">]</span><span class="p">.</span><span class="na">also</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="n">maxHeap</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">maxHeap</span><span class="o">[</span><span class="n">i</span><span class="o">]</span><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-34" name="__codelineno-11-34" href="#__codelineno-11-34"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-35" name="__codelineno-11-35" href="#__codelineno-11-35"></a>
|
||||
<a id="__codelineno-11-36" name="__codelineno-11-36" href="#__codelineno-11-36"></a><span class="w"> </span><span class="cm">/* 获取堆大小 */</span>
|
||||
<a id="__codelineno-11-37" name="__codelineno-11-37" href="#__codelineno-11-37"></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-11-38" name="__codelineno-11-38" href="#__codelineno-11-38"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">maxHeap</span><span class="p">.</span><span class="na">size</span>
|
||||
<a id="__codelineno-11-39" name="__codelineno-11-39" href="#__codelineno-11-39"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-40" name="__codelineno-11-40" href="#__codelineno-11-40"></a>
|
||||
<a id="__codelineno-11-41" name="__codelineno-11-41" href="#__codelineno-11-41"></a><span class="w"> </span><span class="cm">/* 判断堆是否为空 */</span>
|
||||
<a id="__codelineno-11-42" name="__codelineno-11-42" href="#__codelineno-11-42"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">isEmpty</span><span class="p">():</span><span class="w"> </span><span class="kt">Boolean</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-43" name="__codelineno-11-43" href="#__codelineno-11-43"></a><span class="w"> </span><span class="cm">/* 判断堆是否为空 */</span>
|
||||
<a id="__codelineno-11-44" name="__codelineno-11-44" href="#__codelineno-11-44"></a><span class="w"> </span><span class="k">return</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="m">0</span>
|
||||
<a id="__codelineno-11-45" name="__codelineno-11-45" href="#__codelineno-11-45"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-46" name="__codelineno-11-46" href="#__codelineno-11-46"></a>
|
||||
<a id="__codelineno-11-47" name="__codelineno-11-47" href="#__codelineno-11-47"></a><span class="w"> </span><span class="cm">/* 访问堆顶元素 */</span>
|
||||
<a id="__codelineno-11-48" name="__codelineno-11-48" href="#__codelineno-11-48"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">peek</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-11-49" name="__codelineno-11-49" href="#__codelineno-11-49"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">maxHeap</span><span class="o">[</span><span class="m">0</span><span class="o">]</span>
|
||||
<a id="__codelineno-11-50" name="__codelineno-11-50" href="#__codelineno-11-50"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-51" name="__codelineno-11-51" href="#__codelineno-11-51"></a>
|
||||
<a id="__codelineno-11-52" name="__codelineno-11-52" href="#__codelineno-11-52"></a><span class="w"> </span><span class="cm">/* 元素入堆 */</span>
|
||||
<a id="__codelineno-11-53" name="__codelineno-11-53" href="#__codelineno-11-53"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">push</span><span class="p">(</span><span class="n">value</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-11-54" name="__codelineno-11-54" href="#__codelineno-11-54"></a><span class="w"> </span><span class="c1">// 添加节点</span>
|
||||
<a id="__codelineno-11-55" name="__codelineno-11-55" href="#__codelineno-11-55"></a><span class="w"> </span><span class="n">maxHeap</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-56" name="__codelineno-11-56" href="#__codelineno-11-56"></a><span class="w"> </span><span class="c1">// 从底至顶堆化</span>
|
||||
<a id="__codelineno-11-57" name="__codelineno-11-57" href="#__codelineno-11-57"></a><span class="w"> </span><span class="n">siftUp</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="m">1</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-58" name="__codelineno-11-58" href="#__codelineno-11-58"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-59" name="__codelineno-11-59" href="#__codelineno-11-59"></a>
|
||||
<a id="__codelineno-11-60" name="__codelineno-11-60" href="#__codelineno-11-60"></a><span class="w"> </span><span class="cm">/* 从节点 i 开始，从底至顶堆化 */</span>
|
||||
<a id="__codelineno-11-61" name="__codelineno-11-61" href="#__codelineno-11-61"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">siftUp</span><span class="p">(</span><span class="nb">it</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-11-62" name="__codelineno-11-62" href="#__codelineno-11-62"></a><span class="w"> </span><span class="c1">// Kotlin的函数参数不可变，因此创建临时变量</span>
|
||||
<a id="__codelineno-11-63" name="__codelineno-11-63" href="#__codelineno-11-63"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">it</span>
|
||||
<a id="__codelineno-11-64" name="__codelineno-11-64" href="#__codelineno-11-64"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="kc">true</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-65" name="__codelineno-11-65" href="#__codelineno-11-65"></a><span class="w"> </span><span class="c1">// 获取节点 i 的父节点</span>
|
||||
<a id="__codelineno-11-66" name="__codelineno-11-66" href="#__codelineno-11-66"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">p</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">parent</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-67" name="__codelineno-11-67" href="#__codelineno-11-67"></a><span class="w"> </span><span class="c1">// 当“越过根节点”或“节点无须修复”时，结束堆化</span>
|
||||
<a id="__codelineno-11-68" name="__codelineno-11-68" href="#__codelineno-11-68"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">p</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">maxHeap</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">maxHeap</span><span class="o">[</span><span class="n">p</span><span class="o">]</span><span class="p">)</span><span class="w"> </span><span class="k">break</span>
|
||||
<a id="__codelineno-11-69" name="__codelineno-11-69" href="#__codelineno-11-69"></a><span class="w"> </span><span class="c1">// 交换两节点</span>
|
||||
<a id="__codelineno-11-70" name="__codelineno-11-70" href="#__codelineno-11-70"></a><span class="w"> </span><span class="n">swap</span><span class="p">(</span><span class="n">i</span><span class="p">,</span><span class="w"> </span><span class="n">p</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-71" name="__codelineno-11-71" href="#__codelineno-11-71"></a><span class="w"> </span><span class="c1">// 循环向上堆化</span>
|
||||
<a id="__codelineno-11-72" name="__codelineno-11-72" href="#__codelineno-11-72"></a><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">p</span>
|
||||
<a id="__codelineno-11-73" name="__codelineno-11-73" href="#__codelineno-11-73"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-74" name="__codelineno-11-74" href="#__codelineno-11-74"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-75" name="__codelineno-11-75" href="#__codelineno-11-75"></a>
|
||||
<a id="__codelineno-11-76" name="__codelineno-11-76" href="#__codelineno-11-76"></a><span class="w"> </span><span class="cm">/* 元素出堆 */</span>
|
||||
<a id="__codelineno-11-77" name="__codelineno-11-77" href="#__codelineno-11-77"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">pop</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-11-78" name="__codelineno-11-78" href="#__codelineno-11-78"></a><span class="w"> </span><span class="c1">// 判空处理</span>
|
||||
<a id="__codelineno-11-79" name="__codelineno-11-79" href="#__codelineno-11-79"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">isEmpty</span><span class="p">())</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">()</span>
|
||||
<a id="__codelineno-11-80" name="__codelineno-11-80" href="#__codelineno-11-80"></a><span class="w"> </span><span class="c1">// 交换根节点与最右叶节点（交换首元素与尾元素）</span>
|
||||
<a id="__codelineno-11-81" name="__codelineno-11-81" href="#__codelineno-11-81"></a><span class="w"> </span><span class="n">swap</span><span class="p">(</span><span class="m">0</span><span class="p">,</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="m">1</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-82" name="__codelineno-11-82" href="#__codelineno-11-82"></a><span class="w"> </span><span class="c1">// 删除节点</span>
|
||||
<a id="__codelineno-11-83" name="__codelineno-11-83" href="#__codelineno-11-83"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">maxHeap</span><span class="p">.</span><span class="na">removeAt</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="m">1</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-84" name="__codelineno-11-84" href="#__codelineno-11-84"></a><span class="w"> </span><span class="c1">// 从顶至底堆化</span>
|
||||
<a id="__codelineno-11-85" name="__codelineno-11-85" href="#__codelineno-11-85"></a><span class="w"> </span><span class="n">siftDown</span><span class="p">(</span><span class="m">0</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-86" name="__codelineno-11-86" href="#__codelineno-11-86"></a><span class="w"> </span><span class="c1">// 返回堆顶元素</span>
|
||||
<a id="__codelineno-11-87" name="__codelineno-11-87" href="#__codelineno-11-87"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">value</span>
|
||||
<a id="__codelineno-11-88" name="__codelineno-11-88" href="#__codelineno-11-88"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-89" name="__codelineno-11-89" href="#__codelineno-11-89"></a>
|
||||
<a id="__codelineno-11-90" name="__codelineno-11-90" href="#__codelineno-11-90"></a><span class="w"> </span><span class="cm">/* 从节点 i 开始，从顶至底堆化 */</span>
|
||||
<a id="__codelineno-11-91" name="__codelineno-11-91" href="#__codelineno-11-91"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">siftDown</span><span class="p">(</span><span class="nb">it</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-11-92" name="__codelineno-11-92" href="#__codelineno-11-92"></a><span class="w"> </span><span class="c1">// Kotlin的函数参数不可变，因此创建临时变量</span>
|
||||
<a id="__codelineno-11-93" name="__codelineno-11-93" href="#__codelineno-11-93"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">it</span>
|
||||
<a id="__codelineno-11-94" name="__codelineno-11-94" href="#__codelineno-11-94"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="kc">true</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-95" name="__codelineno-11-95" href="#__codelineno-11-95"></a><span class="w"> </span><span class="c1">// 判断节点 i, l, r 中值最大的节点，记为 ma</span>
|
||||
<a id="__codelineno-11-96" name="__codelineno-11-96" href="#__codelineno-11-96"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">l</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">left</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-97" name="__codelineno-11-97" href="#__codelineno-11-97"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">r</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">right</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-98" name="__codelineno-11-98" href="#__codelineno-11-98"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">ma</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">i</span>
|
||||
<a id="__codelineno-11-99" name="__codelineno-11-99" href="#__codelineno-11-99"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">l</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="n">maxHeap</span><span class="o">[</span><span class="n">l</span><span class="o">]</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="n">maxHeap</span><span class="o">[</span><span class="n">ma</span><span class="o">]</span><span class="p">)</span><span class="w"> </span><span class="n">ma</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">l</span>
|
||||
<a id="__codelineno-11-100" name="__codelineno-11-100" href="#__codelineno-11-100"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">r</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="n">maxHeap</span><span class="o">[</span><span class="n">r</span><span class="o">]</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="n">maxHeap</span><span class="o">[</span><span class="n">ma</span><span class="o">]</span><span class="p">)</span><span class="w"> </span><span class="n">ma</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">r</span>
|
||||
<a id="__codelineno-11-101" name="__codelineno-11-101" href="#__codelineno-11-101"></a><span class="w"> </span><span class="c1">// 若节点 i 最大或索引 l, r 越界，则无须继续堆化，跳出</span>
|
||||
<a id="__codelineno-11-102" name="__codelineno-11-102" href="#__codelineno-11-102"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">ma</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">i</span><span class="p">)</span><span class="w"> </span><span class="k">break</span>
|
||||
<a id="__codelineno-11-103" name="__codelineno-11-103" href="#__codelineno-11-103"></a><span class="w"> </span><span class="c1">// 交换两节点</span>
|
||||
<a id="__codelineno-11-104" name="__codelineno-11-104" href="#__codelineno-11-104"></a><span class="w"> </span><span class="n">swap</span><span class="p">(</span><span class="n">i</span><span class="p">,</span><span class="w"> </span><span class="n">ma</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-105" name="__codelineno-11-105" href="#__codelineno-11-105"></a><span class="w"> </span><span class="c1">// 循环向下堆化</span>
|
||||
<a id="__codelineno-11-106" name="__codelineno-11-106" href="#__codelineno-11-106"></a><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ma</span>
|
||||
<a id="__codelineno-11-107" name="__codelineno-11-107" href="#__codelineno-11-107"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-108" name="__codelineno-11-108" href="#__codelineno-11-108"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-109" name="__codelineno-11-109" href="#__codelineno-11-109"></a>
|
||||
<a id="__codelineno-11-110" name="__codelineno-11-110" href="#__codelineno-11-110"></a><span class="w"> </span><span class="cm">/* 打印堆（二叉树） */</span>
|
||||
<a id="__codelineno-11-111" name="__codelineno-11-111" href="#__codelineno-11-111"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">print</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-112" name="__codelineno-11-112" href="#__codelineno-11-112"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">queue</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">PriorityQueue</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="n">a</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">b</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="n">b</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="n">a</span><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-113" name="__codelineno-11-113" href="#__codelineno-11-113"></a><span class="w"> </span><span class="n">queue</span><span class="p">.</span><span class="na">addAll</span><span class="p">(</span><span class="n">maxHeap</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-114" name="__codelineno-11-114" href="#__codelineno-11-114"></a><span class="w"> </span><span class="n">printHeap</span><span class="p">(</span><span class="n">queue</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-115" name="__codelineno-11-115" href="#__codelineno-11-115"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-116" name="__codelineno-11-116" href="#__codelineno-11-116"></a><span class="p">}</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
|
||||
@@ -3962,7 +3962,7 @@
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
<div class="highlight"><span class="filename">linkedlist_deque.kt</span><pre><span></span><code><a id="__codelineno-24-1" name="__codelineno-24-1" href="#__codelineno-24-1"></a><span class="cm">/* 双向链表节点 */</span>
|
||||
<a id="__codelineno-24-2" name="__codelineno-24-2" href="#__codelineno-24-2"></a><span class="kd">class</span><span class="w"> </span><span class="nc">ListNode</span><span class="p">(</span><span class="kd">var</span><span class="w"> </span><span class="nv">value</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-24-2" name="__codelineno-24-2" href="#__codelineno-24-2"></a><span class="kd">class</span><span class="w"> </span><span class="nc">ListNode</span><span class="p">(</span><span class="kd">var</span><span class="w"> </span><span class="nv">_val</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-24-3" name="__codelineno-24-3" href="#__codelineno-24-3"></a><span class="w"> </span><span class="c1">// 节点值</span>
|
||||
<a id="__codelineno-24-4" name="__codelineno-24-4" href="#__codelineno-24-4"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">next</span><span class="p">:</span><span class="w"> </span><span class="n">ListNode? </span><span class="o">=</span><span class="w"> </span><span class="kc">null</span><span class="w"> </span><span class="c1">// 后继节点引用</span>
|
||||
<a id="__codelineno-24-5" name="__codelineno-24-5" href="#__codelineno-24-5"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">prev</span><span class="p">:</span><span class="w"> </span><span class="n">ListNode? </span><span class="o">=</span><span class="w"> </span><span class="kc">null</span><span class="w"> </span><span class="c1">// 前驱节点引用</span>
|
||||
@@ -3970,9 +3970,9 @@
|
||||
<a id="__codelineno-24-7" name="__codelineno-24-7" href="#__codelineno-24-7"></a>
|
||||
<a id="__codelineno-24-8" name="__codelineno-24-8" href="#__codelineno-24-8"></a><span class="cm">/* 基于双向链表实现的双向队列 */</span>
|
||||
<a id="__codelineno-24-9" name="__codelineno-24-9" href="#__codelineno-24-9"></a><span class="kd">class</span><span class="w"> </span><span class="nc">LinkedListDeque</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-24-10" name="__codelineno-24-10" href="#__codelineno-24-10"></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">front</span><span class="p">:</span><span class="w"> </span><span class="n">ListNode? </span><span class="o">=</span><span class="w"> </span><span class="kc">null</span><span class="w"> </span><span class="c1">// 头节点 front ，尾节点 rear</span>
|
||||
<a id="__codelineno-24-11" name="__codelineno-24-11" href="#__codelineno-24-11"></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">rear</span><span class="p">:</span><span class="w"> </span><span class="n">ListNode? </span><span class="o">=</span><span class="w"> </span><span class="kc">null</span>
|
||||
<a id="__codelineno-24-12" name="__codelineno-24-12" href="#__codelineno-24-12"></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">queSize</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">// 双向队列的长度</span>
|
||||
<a id="__codelineno-24-10" name="__codelineno-24-10" href="#__codelineno-24-10"></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">front</span><span class="p">:</span><span class="w"> </span><span class="n">ListNode? </span><span class="o">=</span><span class="w"> </span><span class="kc">null</span><span class="w"> </span><span class="c1">// 头节点 front</span>
|
||||
<a id="__codelineno-24-11" name="__codelineno-24-11" href="#__codelineno-24-11"></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">rear</span><span class="p">:</span><span class="w"> </span><span class="n">ListNode? </span><span class="o">=</span><span class="w"> </span><span class="kc">null</span><span class="w"> </span><span class="c1">// 尾节点 rear</span>
|
||||
<a id="__codelineno-24-12" name="__codelineno-24-12" href="#__codelineno-24-12"></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">queSize</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">// 双向队列的长度</span>
|
||||
<a id="__codelineno-24-13" name="__codelineno-24-13" href="#__codelineno-24-13"></a>
|
||||
<a id="__codelineno-24-14" name="__codelineno-24-14" href="#__codelineno-24-14"></a><span class="w"> </span><span class="cm">/* 获取双向队列的长度 */</span>
|
||||
<a id="__codelineno-24-15" name="__codelineno-24-15" href="#__codelineno-24-15"></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>
|
||||
@@ -4019,12 +4019,12 @@
|
||||
<a id="__codelineno-24-56" name="__codelineno-24-56" href="#__codelineno-24-56"></a>
|
||||
<a id="__codelineno-24-57" name="__codelineno-24-57" href="#__codelineno-24-57"></a><span class="w"> </span><span class="cm">/* 出队操作 */</span>
|
||||
<a id="__codelineno-24-58" name="__codelineno-24-58" href="#__codelineno-24-58"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">pop</span><span class="p">(</span><span class="n">isFront</span><span class="p">:</span><span class="w"> </span><span class="kt">Boolean</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-24-59" name="__codelineno-24-59" href="#__codelineno-24-59"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">isEmpty</span><span class="p">())</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">()</span>
|
||||
<a id="__codelineno-24-60" name="__codelineno-24-60" href="#__codelineno-24-60"></a>
|
||||
<a id="__codelineno-24-59" name="__codelineno-24-59" href="#__codelineno-24-59"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">isEmpty</span><span class="p">())</span><span class="w"> </span>
|
||||
<a id="__codelineno-24-60" name="__codelineno-24-60" href="#__codelineno-24-60"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">()</span>
|
||||
<a id="__codelineno-24-61" name="__codelineno-24-61" href="#__codelineno-24-61"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">value</span><span class="p">:</span><span class="w"> </span><span class="kt">Int</span>
|
||||
<a id="__codelineno-24-62" name="__codelineno-24-62" href="#__codelineno-24-62"></a><span class="w"> </span><span class="c1">// 队首出队操作</span>
|
||||
<a id="__codelineno-24-63" name="__codelineno-24-63" href="#__codelineno-24-63"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">isFront</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-24-64" name="__codelineno-24-64" href="#__codelineno-24-64"></a><span class="w"> </span><span class="n">value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">front</span><span class="o">!!</span><span class="p">.</span><span class="na">value</span><span class="w"> </span><span class="c1">// 暂存头节点值</span>
|
||||
<a id="__codelineno-24-64" name="__codelineno-24-64" href="#__codelineno-24-64"></a><span class="w"> </span><span class="n">value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">front</span><span class="o">!!</span><span class="p">.</span><span class="na">_val</span><span class="w"> </span><span class="c1">// 暂存头节点值</span>
|
||||
<a id="__codelineno-24-65" name="__codelineno-24-65" href="#__codelineno-24-65"></a><span class="w"> </span><span class="c1">// 删除头节点</span>
|
||||
<a id="__codelineno-24-66" name="__codelineno-24-66" href="#__codelineno-24-66"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">fNext</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">front</span><span class="o">!!</span><span class="p">.</span><span class="na">next</span>
|
||||
<a id="__codelineno-24-67" name="__codelineno-24-67" href="#__codelineno-24-67"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">fNext</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
@@ -4034,7 +4034,7 @@
|
||||
<a id="__codelineno-24-71" name="__codelineno-24-71" href="#__codelineno-24-71"></a><span class="w"> </span><span class="n">front</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">fNext</span><span class="w"> </span><span class="c1">// 更新头节点</span>
|
||||
<a id="__codelineno-24-72" name="__codelineno-24-72" href="#__codelineno-24-72"></a><span class="w"> </span><span class="c1">// 队尾出队操作</span>
|
||||
<a id="__codelineno-24-73" name="__codelineno-24-73" href="#__codelineno-24-73"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-24-74" name="__codelineno-24-74" href="#__codelineno-24-74"></a><span class="w"> </span><span class="n">value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">rear</span><span class="o">!!</span><span class="p">.</span><span class="na">value</span><span class="w"> </span><span class="c1">// 暂存尾节点值</span>
|
||||
<a id="__codelineno-24-74" name="__codelineno-24-74" href="#__codelineno-24-74"></a><span class="w"> </span><span class="n">value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">rear</span><span class="o">!!</span><span class="p">.</span><span class="na">_val</span><span class="w"> </span><span class="c1">// 暂存尾节点值</span>
|
||||
<a id="__codelineno-24-75" name="__codelineno-24-75" href="#__codelineno-24-75"></a><span class="w"> </span><span class="c1">// 删除尾节点</span>
|
||||
<a id="__codelineno-24-76" name="__codelineno-24-76" href="#__codelineno-24-76"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">rPrev</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">rear</span><span class="o">!!</span><span class="p">.</span><span class="na">prev</span>
|
||||
<a id="__codelineno-24-77" name="__codelineno-24-77" href="#__codelineno-24-77"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">rPrev</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
@@ -4059,36 +4059,162 @@
|
||||
<a id="__codelineno-24-96" name="__codelineno-24-96" href="#__codelineno-24-96"></a>
|
||||
<a id="__codelineno-24-97" name="__codelineno-24-97" href="#__codelineno-24-97"></a><span class="w"> </span><span class="cm">/* 访问队首元素 */</span>
|
||||
<a id="__codelineno-24-98" name="__codelineno-24-98" href="#__codelineno-24-98"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">peekFirst</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-24-99" name="__codelineno-24-99" href="#__codelineno-24-99"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">isEmpty</span><span class="p">())</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-24-100" name="__codelineno-24-100" href="#__codelineno-24-100"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">()</span>
|
||||
<a id="__codelineno-24-101" name="__codelineno-24-101" href="#__codelineno-24-101"></a>
|
||||
<a id="__codelineno-24-102" name="__codelineno-24-102" href="#__codelineno-24-102"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-24-103" name="__codelineno-24-103" href="#__codelineno-24-103"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">front</span><span class="o">!!</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-24-104" name="__codelineno-24-104" href="#__codelineno-24-104"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-24-105" name="__codelineno-24-105" href="#__codelineno-24-105"></a>
|
||||
<a id="__codelineno-24-106" name="__codelineno-24-106" href="#__codelineno-24-106"></a><span class="w"> </span><span class="cm">/* 访问队尾元素 */</span>
|
||||
<a id="__codelineno-24-107" name="__codelineno-24-107" href="#__codelineno-24-107"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">peekLast</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-24-108" name="__codelineno-24-108" href="#__codelineno-24-108"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">isEmpty</span><span class="p">())</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">()</span>
|
||||
<a id="__codelineno-24-109" name="__codelineno-24-109" href="#__codelineno-24-109"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">rear</span><span class="o">!!</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-24-110" name="__codelineno-24-110" href="#__codelineno-24-110"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-24-111" name="__codelineno-24-111" href="#__codelineno-24-111"></a>
|
||||
<a id="__codelineno-24-112" name="__codelineno-24-112" href="#__codelineno-24-112"></a><span class="w"> </span><span class="cm">/* 返回数组用于打印 */</span>
|
||||
<a id="__codelineno-24-113" name="__codelineno-24-113" href="#__codelineno-24-113"></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-24-114" name="__codelineno-24-114" href="#__codelineno-24-114"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">front</span>
|
||||
<a id="__codelineno-24-115" name="__codelineno-24-115" href="#__codelineno-24-115"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">res</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-24-116" name="__codelineno-24-116" href="#__codelineno-24-116"></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="n">res</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-24-117" name="__codelineno-24-117" href="#__codelineno-24-117"></a><span class="w"> </span><span class="n">res</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">node</span><span class="o">!!</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-24-118" name="__codelineno-24-118" href="#__codelineno-24-118"></a><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">next</span>
|
||||
<a id="__codelineno-24-119" name="__codelineno-24-119" href="#__codelineno-24-119"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-24-120" name="__codelineno-24-120" href="#__codelineno-24-120"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">res</span>
|
||||
<a id="__codelineno-24-121" name="__codelineno-24-121" href="#__codelineno-24-121"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-24-122" name="__codelineno-24-122" href="#__codelineno-24-122"></a><span class="p">}</span>
|
||||
<a id="__codelineno-24-99" name="__codelineno-24-99" href="#__codelineno-24-99"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">isEmpty</span><span class="p">())</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">()</span>
|
||||
<a id="__codelineno-24-100" name="__codelineno-24-100" href="#__codelineno-24-100"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">front</span><span class="o">!!</span><span class="p">.</span><span class="na">_val</span>
|
||||
<a id="__codelineno-24-101" name="__codelineno-24-101" href="#__codelineno-24-101"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-24-102" name="__codelineno-24-102" href="#__codelineno-24-102"></a>
|
||||
<a id="__codelineno-24-103" name="__codelineno-24-103" href="#__codelineno-24-103"></a><span class="w"> </span><span class="cm">/* 访问队尾元素 */</span>
|
||||
<a id="__codelineno-24-104" name="__codelineno-24-104" href="#__codelineno-24-104"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">peekLast</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-24-105" name="__codelineno-24-105" href="#__codelineno-24-105"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">isEmpty</span><span class="p">())</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">()</span>
|
||||
<a id="__codelineno-24-106" name="__codelineno-24-106" href="#__codelineno-24-106"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">rear</span><span class="o">!!</span><span class="p">.</span><span class="na">_val</span>
|
||||
<a id="__codelineno-24-107" name="__codelineno-24-107" href="#__codelineno-24-107"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-24-108" name="__codelineno-24-108" href="#__codelineno-24-108"></a>
|
||||
<a id="__codelineno-24-109" name="__codelineno-24-109" href="#__codelineno-24-109"></a><span class="w"> </span><span class="cm">/* 返回数组用于打印 */</span>
|
||||
<a id="__codelineno-24-110" name="__codelineno-24-110" href="#__codelineno-24-110"></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-24-111" name="__codelineno-24-111" href="#__codelineno-24-111"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">front</span>
|
||||
<a id="__codelineno-24-112" name="__codelineno-24-112" href="#__codelineno-24-112"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">res</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-24-113" name="__codelineno-24-113" href="#__codelineno-24-113"></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="n">res</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-24-114" name="__codelineno-24-114" href="#__codelineno-24-114"></a><span class="w"> </span><span class="n">res</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">node</span><span class="o">!!</span><span class="p">.</span><span class="na">_val</span>
|
||||
<a id="__codelineno-24-115" name="__codelineno-24-115" href="#__codelineno-24-115"></a><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">next</span>
|
||||
<a id="__codelineno-24-116" name="__codelineno-24-116" href="#__codelineno-24-116"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-24-117" name="__codelineno-24-117" href="#__codelineno-24-117"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">res</span>
|
||||
<a id="__codelineno-24-118" name="__codelineno-24-118" href="#__codelineno-24-118"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-24-119" name="__codelineno-24-119" href="#__codelineno-24-119"></a><span class="p">}</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
<div class="highlight"><span class="filename">linkedlist_deque.rb</span><pre><span></span><code><a id="__codelineno-25-1" name="__codelineno-25-1" href="#__codelineno-25-1"></a><span class="o">[</span><span class="n">class</span><span class="o">]</span><span class="p">{</span><span class="no">ListNode</span><span class="p">}</span><span class="o">-[</span><span class="n">func</span><span class="o">]</span><span class="p">{}</span>
|
||||
<a id="__codelineno-25-2" name="__codelineno-25-2" href="#__codelineno-25-2"></a>
|
||||
<a id="__codelineno-25-3" name="__codelineno-25-3" href="#__codelineno-25-3"></a><span class="o">[</span><span class="n">class</span><span class="o">]</span><span class="p">{</span><span class="no">LinkedListDeque</span><span class="p">}</span><span class="o">-[</span><span class="n">func</span><span class="o">]</span><span class="p">{}</span>
|
||||
<div class="highlight"><span class="filename">linkedlist_deque.rb</span><pre><span></span><code><a id="__codelineno-25-1" name="__codelineno-25-1" href="#__codelineno-25-1"></a><span class="cm">=begin</span>
|
||||
<a id="__codelineno-25-2" name="__codelineno-25-2" href="#__codelineno-25-2"></a><span class="cm">File: linkedlist_deque.rb</span>
|
||||
<a id="__codelineno-25-3" name="__codelineno-25-3" href="#__codelineno-25-3"></a><span class="cm">Created Time: 2024-04-06</span>
|
||||
<a id="__codelineno-25-4" name="__codelineno-25-4" href="#__codelineno-25-4"></a><span class="cm">Author: Xuan Khoa Tu Nguyen (ngxktuzkai2000@gmail.com)</span>
|
||||
<a id="__codelineno-25-5" name="__codelineno-25-5" href="#__codelineno-25-5"></a><span class="cm">=end</span>
|
||||
<a id="__codelineno-25-6" name="__codelineno-25-6" href="#__codelineno-25-6"></a>
|
||||
<a id="__codelineno-25-7" name="__codelineno-25-7" href="#__codelineno-25-7"></a><span class="c1">### 双向链表节点</span>
|
||||
<a id="__codelineno-25-8" name="__codelineno-25-8" href="#__codelineno-25-8"></a><span class="k">class</span><span class="w"> </span><span class="nc">ListNode</span>
|
||||
<a id="__codelineno-25-9" name="__codelineno-25-9" href="#__codelineno-25-9"></a><span class="w"> </span><span class="kp">attr_accessor</span><span class="w"> </span><span class="ss">:val</span>
|
||||
<a id="__codelineno-25-10" name="__codelineno-25-10" href="#__codelineno-25-10"></a><span class="w"> </span><span class="kp">attr_accessor</span><span class="w"> </span><span class="ss">:next</span><span class="w"> </span><span class="c1"># 后继节点引用</span>
|
||||
<a id="__codelineno-25-11" name="__codelineno-25-11" href="#__codelineno-25-11"></a><span class="w"> </span><span class="kp">attr_accessor</span><span class="w"> </span><span class="ss">:prev</span><span class="w"> </span><span class="c1"># 前躯节点引用</span>
|
||||
<a id="__codelineno-25-12" name="__codelineno-25-12" href="#__codelineno-25-12"></a>
|
||||
<a id="__codelineno-25-13" name="__codelineno-25-13" href="#__codelineno-25-13"></a><span class="w"> </span><span class="c1">### 构造方法 ###</span>
|
||||
<a id="__codelineno-25-14" name="__codelineno-25-14" href="#__codelineno-25-14"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">initialize</span><span class="p">(</span><span class="n">val</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-15" name="__codelineno-25-15" href="#__codelineno-25-15"></a><span class="w"> </span><span class="vi">@val</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">val</span>
|
||||
<a id="__codelineno-25-16" name="__codelineno-25-16" href="#__codelineno-25-16"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-17" name="__codelineno-25-17" href="#__codelineno-25-17"></a><span class="k">end</span>
|
||||
<a id="__codelineno-25-18" name="__codelineno-25-18" href="#__codelineno-25-18"></a>
|
||||
<a id="__codelineno-25-19" name="__codelineno-25-19" href="#__codelineno-25-19"></a><span class="c1">### 基于双向链表实现的双向队列 ###</span>
|
||||
<a id="__codelineno-25-20" name="__codelineno-25-20" href="#__codelineno-25-20"></a><span class="k">class</span><span class="w"> </span><span class="nc">LinkedListDeque</span>
|
||||
<a id="__codelineno-25-21" name="__codelineno-25-21" href="#__codelineno-25-21"></a><span class="w"> </span><span class="c1">### 获取双向队列的长度 ###</span>
|
||||
<a id="__codelineno-25-22" name="__codelineno-25-22" href="#__codelineno-25-22"></a><span class="w"> </span><span class="kp">attr_reader</span><span class="w"> </span><span class="ss">:size</span>
|
||||
<a id="__codelineno-25-23" name="__codelineno-25-23" href="#__codelineno-25-23"></a>
|
||||
<a id="__codelineno-25-24" name="__codelineno-25-24" href="#__codelineno-25-24"></a><span class="w"> </span><span class="c1">### 构造方法 ###</span>
|
||||
<a id="__codelineno-25-25" name="__codelineno-25-25" href="#__codelineno-25-25"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">initialize</span>
|
||||
<a id="__codelineno-25-26" name="__codelineno-25-26" href="#__codelineno-25-26"></a><span class="w"> </span><span class="vi">@front</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">nil</span><span class="w"> </span><span class="c1"># 头节点 front</span>
|
||||
<a id="__codelineno-25-27" name="__codelineno-25-27" href="#__codelineno-25-27"></a><span class="w"> </span><span class="vi">@rear</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">nil</span><span class="w"> </span><span class="c1"># 尾节点 rear</span>
|
||||
<a id="__codelineno-25-28" name="__codelineno-25-28" href="#__codelineno-25-28"></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><span class="w"> </span><span class="c1"># 双向队列的长度</span>
|
||||
<a id="__codelineno-25-29" name="__codelineno-25-29" href="#__codelineno-25-29"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-30" name="__codelineno-25-30" href="#__codelineno-25-30"></a>
|
||||
<a id="__codelineno-25-31" name="__codelineno-25-31" href="#__codelineno-25-31"></a><span class="w"> </span><span class="c1">### 判断双向队列是否为空 ###</span>
|
||||
<a id="__codelineno-25-32" name="__codelineno-25-32" href="#__codelineno-25-32"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">is_empty?</span>
|
||||
<a id="__codelineno-25-33" name="__codelineno-25-33" href="#__codelineno-25-33"></a><span class="w"> </span><span class="n">size</span><span class="o">.</span><span class="n">zero?</span>
|
||||
<a id="__codelineno-25-34" name="__codelineno-25-34" href="#__codelineno-25-34"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-35" name="__codelineno-25-35" href="#__codelineno-25-35"></a>
|
||||
<a id="__codelineno-25-36" name="__codelineno-25-36" href="#__codelineno-25-36"></a><span class="w"> </span><span class="c1">### 入队操作 ###</span>
|
||||
<a id="__codelineno-25-37" name="__codelineno-25-37" href="#__codelineno-25-37"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">push</span><span class="p">(</span><span class="n">num</span><span class="p">,</span><span class="w"> </span><span class="n">is_front</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-38" name="__codelineno-25-38" href="#__codelineno-25-38"></a><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="no">ListNode</span><span class="o">.</span><span class="n">new</span><span class="p">(</span><span class="n">num</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-39" name="__codelineno-25-39" href="#__codelineno-25-39"></a><span class="w"> </span><span class="c1"># 若链表为空， 则令 front 和 rear 都指向 node</span>
|
||||
<a id="__codelineno-25-40" name="__codelineno-25-40" href="#__codelineno-25-40"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">is_empty?</span>
|
||||
<a id="__codelineno-25-41" name="__codelineno-25-41" href="#__codelineno-25-41"></a><span class="w"> </span><span class="vi">@front</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@rear</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-25-42" name="__codelineno-25-42" href="#__codelineno-25-42"></a><span class="w"> </span><span class="c1"># 队首入队操作</span>
|
||||
<a id="__codelineno-25-43" name="__codelineno-25-43" href="#__codelineno-25-43"></a><span class="w"> </span><span class="k">elsif</span><span class="w"> </span><span class="n">is_front</span>
|
||||
<a id="__codelineno-25-44" name="__codelineno-25-44" href="#__codelineno-25-44"></a><span class="w"> </span><span class="c1"># 将 node 添加至链表头部</span>
|
||||
<a id="__codelineno-25-45" name="__codelineno-25-45" href="#__codelineno-25-45"></a><span class="w"> </span><span class="vi">@front</span><span class="o">.</span><span class="n">prev</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-25-46" name="__codelineno-25-46" href="#__codelineno-25-46"></a><span class="w"> </span><span class="n">node</span><span class="o">.</span><span class="n">next</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@front</span>
|
||||
<a id="__codelineno-25-47" name="__codelineno-25-47" href="#__codelineno-25-47"></a><span class="w"> </span><span class="vi">@front</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="c1"># 更新头节点</span>
|
||||
<a id="__codelineno-25-48" name="__codelineno-25-48" href="#__codelineno-25-48"></a><span class="w"> </span><span class="c1"># 队尾入队操作</span>
|
||||
<a id="__codelineno-25-49" name="__codelineno-25-49" href="#__codelineno-25-49"></a><span class="w"> </span><span class="k">else</span>
|
||||
<a id="__codelineno-25-50" name="__codelineno-25-50" href="#__codelineno-25-50"></a><span class="w"> </span><span class="c1"># 将 node 添加至链表尾部</span>
|
||||
<a id="__codelineno-25-51" name="__codelineno-25-51" href="#__codelineno-25-51"></a><span class="w"> </span><span class="vi">@rear</span><span class="o">.</span><span class="n">next</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-25-52" name="__codelineno-25-52" href="#__codelineno-25-52"></a><span class="w"> </span><span class="n">node</span><span class="o">.</span><span class="n">prev</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@rear</span>
|
||||
<a id="__codelineno-25-53" name="__codelineno-25-53" href="#__codelineno-25-53"></a><span class="w"> </span><span class="vi">@rear</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="c1"># 更新尾节点</span>
|
||||
<a id="__codelineno-25-54" name="__codelineno-25-54" href="#__codelineno-25-54"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-55" name="__codelineno-25-55" href="#__codelineno-25-55"></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><span class="w"> </span><span class="c1"># 更新队列长度</span>
|
||||
<a id="__codelineno-25-56" name="__codelineno-25-56" href="#__codelineno-25-56"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-57" name="__codelineno-25-57" href="#__codelineno-25-57"></a>
|
||||
<a id="__codelineno-25-58" name="__codelineno-25-58" href="#__codelineno-25-58"></a><span class="w"> </span><span class="c1">### 队首入队 ###</span>
|
||||
<a id="__codelineno-25-59" name="__codelineno-25-59" href="#__codelineno-25-59"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">push_first</span><span class="p">(</span><span class="n">num</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-60" name="__codelineno-25-60" href="#__codelineno-25-60"></a><span class="w"> </span><span class="n">push</span><span class="p">(</span><span class="n">num</span><span class="p">,</span><span class="w"> </span><span class="kp">true</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-61" name="__codelineno-25-61" href="#__codelineno-25-61"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-62" name="__codelineno-25-62" href="#__codelineno-25-62"></a>
|
||||
<a id="__codelineno-25-63" name="__codelineno-25-63" href="#__codelineno-25-63"></a><span class="w"> </span><span class="c1">### 队尾入队 ###</span>
|
||||
<a id="__codelineno-25-64" name="__codelineno-25-64" href="#__codelineno-25-64"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">push_last</span><span class="p">(</span><span class="n">num</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-65" name="__codelineno-25-65" href="#__codelineno-25-65"></a><span class="w"> </span><span class="n">push</span><span class="p">(</span><span class="n">num</span><span class="p">,</span><span class="w"> </span><span class="kp">false</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-66" name="__codelineno-25-66" href="#__codelineno-25-66"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-67" name="__codelineno-25-67" href="#__codelineno-25-67"></a>
|
||||
<a id="__codelineno-25-68" name="__codelineno-25-68" href="#__codelineno-25-68"></a><span class="w"> </span><span class="c1">### 出队操作 ###</span>
|
||||
<a id="__codelineno-25-69" name="__codelineno-25-69" href="#__codelineno-25-69"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">pop</span><span class="p">(</span><span class="n">is_front</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-70" name="__codelineno-25-70" href="#__codelineno-25-70"></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="s1">'双向队列为空'</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">is_empty?</span>
|
||||
<a id="__codelineno-25-71" name="__codelineno-25-71" href="#__codelineno-25-71"></a>
|
||||
<a id="__codelineno-25-72" name="__codelineno-25-72" href="#__codelineno-25-72"></a><span class="w"> </span><span class="c1"># 队首出队操作</span>
|
||||
<a id="__codelineno-25-73" name="__codelineno-25-73" href="#__codelineno-25-73"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">is_front</span>
|
||||
<a id="__codelineno-25-74" name="__codelineno-25-74" href="#__codelineno-25-74"></a><span class="w"> </span><span class="n">val</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@front</span><span class="o">.</span><span class="n">val</span><span class="w"> </span><span class="c1"># 暂存头节点值</span>
|
||||
<a id="__codelineno-25-75" name="__codelineno-25-75" href="#__codelineno-25-75"></a><span class="w"> </span><span class="c1"># 删除头节点</span>
|
||||
<a id="__codelineno-25-76" name="__codelineno-25-76" href="#__codelineno-25-76"></a><span class="w"> </span><span class="n">fnext</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@front</span><span class="o">.</span><span class="n">next</span>
|
||||
<a id="__codelineno-25-77" name="__codelineno-25-77" href="#__codelineno-25-77"></a><span class="w"> </span><span class="k">unless</span><span class="w"> </span><span class="n">fnext</span><span class="o">.</span><span class="n">nil?</span>
|
||||
<a id="__codelineno-25-78" name="__codelineno-25-78" href="#__codelineno-25-78"></a><span class="w"> </span><span class="n">fnext</span><span class="o">.</span><span class="n">prev</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">nil</span>
|
||||
<a id="__codelineno-25-79" name="__codelineno-25-79" href="#__codelineno-25-79"></a><span class="w"> </span><span class="vi">@front</span><span class="o">.</span><span class="n">next</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">nil</span>
|
||||
<a id="__codelineno-25-80" name="__codelineno-25-80" href="#__codelineno-25-80"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-81" name="__codelineno-25-81" href="#__codelineno-25-81"></a><span class="w"> </span><span class="vi">@front</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">fnext</span><span class="w"> </span><span class="c1"># 更新头节点</span>
|
||||
<a id="__codelineno-25-82" name="__codelineno-25-82" href="#__codelineno-25-82"></a><span class="w"> </span><span class="c1"># 队尾出队操作</span>
|
||||
<a id="__codelineno-25-83" name="__codelineno-25-83" href="#__codelineno-25-83"></a><span class="w"> </span><span class="k">else</span>
|
||||
<a id="__codelineno-25-84" name="__codelineno-25-84" href="#__codelineno-25-84"></a><span class="w"> </span><span class="n">val</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@rear</span><span class="o">.</span><span class="n">val</span><span class="w"> </span><span class="c1"># 暂存尾节点值</span>
|
||||
<a id="__codelineno-25-85" name="__codelineno-25-85" href="#__codelineno-25-85"></a><span class="w"> </span><span class="c1"># 删除尾节点</span>
|
||||
<a id="__codelineno-25-86" name="__codelineno-25-86" href="#__codelineno-25-86"></a><span class="w"> </span><span class="n">rprev</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@rear</span><span class="o">.</span><span class="n">prev</span>
|
||||
<a id="__codelineno-25-87" name="__codelineno-25-87" href="#__codelineno-25-87"></a><span class="w"> </span><span class="k">unless</span><span class="w"> </span><span class="n">rprev</span><span class="o">.</span><span class="n">nil?</span>
|
||||
<a id="__codelineno-25-88" name="__codelineno-25-88" href="#__codelineno-25-88"></a><span class="w"> </span><span class="n">rprev</span><span class="o">.</span><span class="n">next</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">nil</span>
|
||||
<a id="__codelineno-25-89" name="__codelineno-25-89" href="#__codelineno-25-89"></a><span class="w"> </span><span class="vi">@rear</span><span class="o">.</span><span class="n">prev</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">nil</span>
|
||||
<a id="__codelineno-25-90" name="__codelineno-25-90" href="#__codelineno-25-90"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-91" name="__codelineno-25-91" href="#__codelineno-25-91"></a><span class="w"> </span><span class="vi">@rear</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">rprev</span><span class="w"> </span><span class="c1"># 更新尾节点</span>
|
||||
<a id="__codelineno-25-92" name="__codelineno-25-92" href="#__codelineno-25-92"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-93" name="__codelineno-25-93" href="#__codelineno-25-93"></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><span class="w"> </span><span class="c1"># 更新队列长度</span>
|
||||
<a id="__codelineno-25-94" name="__codelineno-25-94" href="#__codelineno-25-94"></a>
|
||||
<a id="__codelineno-25-95" name="__codelineno-25-95" href="#__codelineno-25-95"></a><span class="w"> </span><span class="n">val</span>
|
||||
<a id="__codelineno-25-96" name="__codelineno-25-96" href="#__codelineno-25-96"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-97" name="__codelineno-25-97" href="#__codelineno-25-97"></a>
|
||||
<a id="__codelineno-25-98" name="__codelineno-25-98" href="#__codelineno-25-98"></a><span class="w"> </span><span class="c1">### 队首出队 ###</span>
|
||||
<a id="__codelineno-25-99" name="__codelineno-25-99" href="#__codelineno-25-99"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">pop_first</span>
|
||||
<a id="__codelineno-25-100" name="__codelineno-25-100" href="#__codelineno-25-100"></a><span class="w"> </span><span class="n">pop</span><span class="p">(</span><span class="kp">true</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-101" name="__codelineno-25-101" href="#__codelineno-25-101"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-102" name="__codelineno-25-102" href="#__codelineno-25-102"></a>
|
||||
<a id="__codelineno-25-103" name="__codelineno-25-103" href="#__codelineno-25-103"></a><span class="w"> </span><span class="c1">### 队首出队 ###</span>
|
||||
<a id="__codelineno-25-104" name="__codelineno-25-104" href="#__codelineno-25-104"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">pop_last</span>
|
||||
<a id="__codelineno-25-105" name="__codelineno-25-105" href="#__codelineno-25-105"></a><span class="w"> </span><span class="n">pop</span><span class="p">(</span><span class="kp">false</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-106" name="__codelineno-25-106" href="#__codelineno-25-106"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-107" name="__codelineno-25-107" href="#__codelineno-25-107"></a>
|
||||
<a id="__codelineno-25-108" name="__codelineno-25-108" href="#__codelineno-25-108"></a><span class="w"> </span><span class="c1">### 访问队首元素 ###</span>
|
||||
<a id="__codelineno-25-109" name="__codelineno-25-109" href="#__codelineno-25-109"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">peek_first</span>
|
||||
<a id="__codelineno-25-110" name="__codelineno-25-110" href="#__codelineno-25-110"></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="s1">'双向队列为空'</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">is_empty?</span>
|
||||
<a id="__codelineno-25-111" name="__codelineno-25-111" href="#__codelineno-25-111"></a>
|
||||
<a id="__codelineno-25-112" name="__codelineno-25-112" href="#__codelineno-25-112"></a><span class="w"> </span><span class="vi">@front</span><span class="o">.</span><span class="n">val</span>
|
||||
<a id="__codelineno-25-113" name="__codelineno-25-113" href="#__codelineno-25-113"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-114" name="__codelineno-25-114" href="#__codelineno-25-114"></a>
|
||||
<a id="__codelineno-25-115" name="__codelineno-25-115" href="#__codelineno-25-115"></a><span class="w"> </span><span class="c1">### 访问队尾元素 ###</span>
|
||||
<a id="__codelineno-25-116" name="__codelineno-25-116" href="#__codelineno-25-116"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">peek_last</span>
|
||||
<a id="__codelineno-25-117" name="__codelineno-25-117" href="#__codelineno-25-117"></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="s1">'双向队列为空'</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">is_empty?</span>
|
||||
<a id="__codelineno-25-118" name="__codelineno-25-118" href="#__codelineno-25-118"></a>
|
||||
<a id="__codelineno-25-119" name="__codelineno-25-119" href="#__codelineno-25-119"></a><span class="w"> </span><span class="vi">@rear</span><span class="o">.</span><span class="n">val</span>
|
||||
<a id="__codelineno-25-120" name="__codelineno-25-120" href="#__codelineno-25-120"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-121" name="__codelineno-25-121" href="#__codelineno-25-121"></a>
|
||||
<a id="__codelineno-25-122" name="__codelineno-25-122" href="#__codelineno-25-122"></a><span class="w"> </span><span class="c1">### 返回数组用于打印 ###</span>
|
||||
<a id="__codelineno-25-123" name="__codelineno-25-123" href="#__codelineno-25-123"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">to_array</span>
|
||||
<a id="__codelineno-25-124" name="__codelineno-25-124" href="#__codelineno-25-124"></a><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@front</span>
|
||||
<a id="__codelineno-25-125" name="__codelineno-25-125" href="#__codelineno-25-125"></a><span class="w"> </span><span class="n">res</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">size</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-126" name="__codelineno-25-126" href="#__codelineno-25-126"></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">size</span>
|
||||
<a id="__codelineno-25-127" name="__codelineno-25-127" href="#__codelineno-25-127"></a><span class="w"> </span><span class="n">res</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">node</span><span class="o">.</span><span class="n">val</span>
|
||||
<a id="__codelineno-25-128" name="__codelineno-25-128" href="#__codelineno-25-128"></a><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span><span class="o">.</span><span class="n">next</span>
|
||||
<a id="__codelineno-25-129" name="__codelineno-25-129" href="#__codelineno-25-129"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-130" name="__codelineno-25-130" href="#__codelineno-25-130"></a><span class="w"> </span><span class="n">res</span>
|
||||
<a id="__codelineno-25-131" name="__codelineno-25-131" href="#__codelineno-25-131"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-132" name="__codelineno-25-132" href="#__codelineno-25-132"></a><span class="k">end</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
@@ -5450,11 +5576,11 @@
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
<div class="highlight"><span class="filename">array_deque.kt</span><pre><span></span><code><a id="__codelineno-38-1" name="__codelineno-38-1" href="#__codelineno-38-1"></a><span class="cm">/* 基于环形数组实现的双向队列 */</span>
|
||||
<div class="highlight"><span class="filename">array_deque.kt</span><pre><span></span><code><a id="__codelineno-38-1" name="__codelineno-38-1" href="#__codelineno-38-1"></a><span class="cm">/* 构造方法 */</span>
|
||||
<a id="__codelineno-38-2" name="__codelineno-38-2" href="#__codelineno-38-2"></a><span class="kd">class</span><span class="w"> </span><span class="nc">ArrayDeque</span><span class="p">(</span><span class="n">capacity</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-38-3" name="__codelineno-38-3" href="#__codelineno-38-3"></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">nums</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><span class="w"> </span><span class="c1">// 用于存储双向队列元素的数组</span>
|
||||
<a id="__codelineno-38-4" name="__codelineno-38-4" href="#__codelineno-38-4"></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">front</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">// 队首指针，指向队首元素</span>
|
||||
<a id="__codelineno-38-5" name="__codelineno-38-5" href="#__codelineno-38-5"></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">queSize</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">// 双向队列长度</span>
|
||||
<a id="__codelineno-38-3" name="__codelineno-38-3" href="#__codelineno-38-3"></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">nums</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">IntArray</span><span class="p">(</span><span class="n">capacity</span><span class="p">)</span><span class="w"> </span><span class="c1">// 用于存储双向队列元素的数组</span>
|
||||
<a id="__codelineno-38-4" name="__codelineno-38-4" href="#__codelineno-38-4"></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">front</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">// 队首指针，指向队首元素</span>
|
||||
<a id="__codelineno-38-5" name="__codelineno-38-5" href="#__codelineno-38-5"></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">queSize</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">// 双向队列长度</span>
|
||||
<a id="__codelineno-38-6" name="__codelineno-38-6" href="#__codelineno-38-6"></a>
|
||||
<a id="__codelineno-38-7" name="__codelineno-38-7" href="#__codelineno-38-7"></a><span class="w"> </span><span class="cm">/* 获取双向队列的容量 */</span>
|
||||
<a id="__codelineno-38-8" name="__codelineno-38-8" href="#__codelineno-38-8"></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>
|
||||
@@ -5515,7 +5641,7 @@
|
||||
<a id="__codelineno-38-63" name="__codelineno-38-63" href="#__codelineno-38-63"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span>
|
||||
<a id="__codelineno-38-64" name="__codelineno-38-64" href="#__codelineno-38-64"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-65" name="__codelineno-38-65" href="#__codelineno-38-65"></a>
|
||||
<a id="__codelineno-38-66" name="__codelineno-38-66" href="#__codelineno-38-66"></a><span class="w"> </span><span class="cm">/* 访问队尾元素 */</span>
|
||||
<a id="__codelineno-38-66" name="__codelineno-38-66" href="#__codelineno-38-66"></a><span class="w"> </span><span class="cm">/* 队尾出队 */</span>
|
||||
<a id="__codelineno-38-67" name="__codelineno-38-67" href="#__codelineno-38-67"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">popLast</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-38-68" name="__codelineno-38-68" href="#__codelineno-38-68"></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">peekLast</span><span class="p">()</span>
|
||||
<a id="__codelineno-38-69" name="__codelineno-38-69" href="#__codelineno-38-69"></a><span class="w"> </span><span class="n">queSize</span><span class="o">--</span>
|
||||
@@ -5553,7 +5679,109 @@
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
<div class="highlight"><span class="filename">array_deque.rb</span><pre><span></span><code><a id="__codelineno-39-1" name="__codelineno-39-1" href="#__codelineno-39-1"></a><span class="o">[</span><span class="n">class</span><span class="o">]</span><span class="p">{</span><span class="no">ArrayDeque</span><span class="p">}</span><span class="o">-[</span><span class="n">func</span><span class="o">]</span><span class="p">{}</span>
|
||||
<div class="highlight"><span class="filename">array_deque.rb</span><pre><span></span><code><a id="__codelineno-39-1" name="__codelineno-39-1" href="#__codelineno-39-1"></a><span class="c1">### 基于环形数组实现的双向队列 ###</span>
|
||||
<a id="__codelineno-39-2" name="__codelineno-39-2" href="#__codelineno-39-2"></a><span class="k">class</span><span class="w"> </span><span class="nc">ArrayDeque</span>
|
||||
<a id="__codelineno-39-3" name="__codelineno-39-3" href="#__codelineno-39-3"></a><span class="w"> </span><span class="c1">### 获取双向队列的长度 ###</span>
|
||||
<a id="__codelineno-39-4" name="__codelineno-39-4" href="#__codelineno-39-4"></a><span class="w"> </span><span class="kp">attr_reader</span><span class="w"> </span><span class="ss">:size</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="w"> </span><span class="c1">### 构造方法 ###</span>
|
||||
<a id="__codelineno-39-7" name="__codelineno-39-7" href="#__codelineno-39-7"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">initialize</span><span class="p">(</span><span class="n">capacity</span><span class="p">)</span>
|
||||
<a id="__codelineno-39-8" name="__codelineno-39-8" href="#__codelineno-39-8"></a><span class="w"> </span><span class="vi">@nums</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><span class="w"> </span><span class="mi">0</span><span class="p">)</span>
|
||||
<a id="__codelineno-39-9" name="__codelineno-39-9" href="#__codelineno-39-9"></a><span class="w"> </span><span class="vi">@front</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span>
|
||||
<a id="__codelineno-39-10" name="__codelineno-39-10" href="#__codelineno-39-10"></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-39-11" name="__codelineno-39-11" href="#__codelineno-39-11"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-12" name="__codelineno-39-12" href="#__codelineno-39-12"></a>
|
||||
<a id="__codelineno-39-13" name="__codelineno-39-13" href="#__codelineno-39-13"></a><span class="w"> </span><span class="c1">### 获取双向队列的容量 ###</span>
|
||||
<a id="__codelineno-39-14" name="__codelineno-39-14" href="#__codelineno-39-14"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">capacity</span>
|
||||
<a id="__codelineno-39-15" name="__codelineno-39-15" href="#__codelineno-39-15"></a><span class="w"> </span><span class="vi">@nums</span><span class="o">.</span><span class="n">length</span>
|
||||
<a id="__codelineno-39-16" name="__codelineno-39-16" href="#__codelineno-39-16"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-17" name="__codelineno-39-17" href="#__codelineno-39-17"></a>
|
||||
<a id="__codelineno-39-18" name="__codelineno-39-18" href="#__codelineno-39-18"></a><span class="w"> </span><span class="c1">### 判断双向队列是否为空 ###</span>
|
||||
<a id="__codelineno-39-19" name="__codelineno-39-19" href="#__codelineno-39-19"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">is_empty?</span>
|
||||
<a id="__codelineno-39-20" name="__codelineno-39-20" href="#__codelineno-39-20"></a><span class="w"> </span><span class="n">size</span><span class="o">.</span><span class="n">zero?</span>
|
||||
<a id="__codelineno-39-21" name="__codelineno-39-21" href="#__codelineno-39-21"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-22" name="__codelineno-39-22" href="#__codelineno-39-22"></a>
|
||||
<a id="__codelineno-39-23" name="__codelineno-39-23" href="#__codelineno-39-23"></a><span class="w"> </span><span class="c1">### 队首入队 ###</span>
|
||||
<a id="__codelineno-39-24" name="__codelineno-39-24" href="#__codelineno-39-24"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">push_first</span><span class="p">(</span><span class="n">num</span><span class="p">)</span>
|
||||
<a id="__codelineno-39-25" name="__codelineno-39-25" href="#__codelineno-39-25"></a><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-39-26" name="__codelineno-39-26" href="#__codelineno-39-26"></a><span class="w"> </span><span class="nb">puts</span><span class="w"> </span><span class="s1">'双向队列已满'</span>
|
||||
<a id="__codelineno-39-27" name="__codelineno-39-27" href="#__codelineno-39-27"></a><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-39-28" name="__codelineno-39-28" href="#__codelineno-39-28"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-29" name="__codelineno-39-29" href="#__codelineno-39-29"></a>
|
||||
<a id="__codelineno-39-30" name="__codelineno-39-30" href="#__codelineno-39-30"></a><span class="w"> </span><span class="c1"># 队首指针向左移动一位</span>
|
||||
<a id="__codelineno-39-31" name="__codelineno-39-31" href="#__codelineno-39-31"></a><span class="w"> </span><span class="c1"># 通过取余操作实现 front 越过数组头部后回到尾部</span>
|
||||
<a id="__codelineno-39-32" name="__codelineno-39-32" href="#__codelineno-39-32"></a><span class="w"> </span><span class="vi">@front</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">(</span><span class="vi">@front</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-39-33" name="__codelineno-39-33" href="#__codelineno-39-33"></a><span class="w"> </span><span class="c1"># 将 num 添加至队首</span>
|
||||
<a id="__codelineno-39-34" name="__codelineno-39-34" href="#__codelineno-39-34"></a><span class="w"> </span><span class="vi">@nums</span><span class="o">[</span><span class="vi">@front</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-39-35" name="__codelineno-39-35" href="#__codelineno-39-35"></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-39-36" name="__codelineno-39-36" href="#__codelineno-39-36"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-37" name="__codelineno-39-37" href="#__codelineno-39-37"></a>
|
||||
<a id="__codelineno-39-38" name="__codelineno-39-38" href="#__codelineno-39-38"></a><span class="w"> </span><span class="c1">### 队尾入队 ###</span>
|
||||
<a id="__codelineno-39-39" name="__codelineno-39-39" href="#__codelineno-39-39"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">push_last</span><span class="p">(</span><span class="n">num</span><span class="p">)</span>
|
||||
<a id="__codelineno-39-40" name="__codelineno-39-40" href="#__codelineno-39-40"></a><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-39-41" name="__codelineno-39-41" href="#__codelineno-39-41"></a><span class="w"> </span><span class="nb">puts</span><span class="w"> </span><span class="s1">'双向队列已满'</span>
|
||||
<a id="__codelineno-39-42" name="__codelineno-39-42" href="#__codelineno-39-42"></a><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-39-43" name="__codelineno-39-43" href="#__codelineno-39-43"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-44" name="__codelineno-39-44" href="#__codelineno-39-44"></a>
|
||||
<a id="__codelineno-39-45" name="__codelineno-39-45" href="#__codelineno-39-45"></a><span class="w"> </span><span class="c1"># 计算队尾指针，指向队尾索引 + 1</span>
|
||||
<a id="__codelineno-39-46" name="__codelineno-39-46" href="#__codelineno-39-46"></a><span class="w"> </span><span class="n">rear</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">(</span><span class="vi">@front</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-39-47" name="__codelineno-39-47" href="#__codelineno-39-47"></a><span class="w"> </span><span class="c1"># 将 num 添加至队尾</span>
|
||||
<a id="__codelineno-39-48" name="__codelineno-39-48" href="#__codelineno-39-48"></a><span class="w"> </span><span class="vi">@nums</span><span class="o">[</span><span class="n">rear</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-39-49" name="__codelineno-39-49" href="#__codelineno-39-49"></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-39-50" name="__codelineno-39-50" href="#__codelineno-39-50"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-51" name="__codelineno-39-51" href="#__codelineno-39-51"></a>
|
||||
<a id="__codelineno-39-52" name="__codelineno-39-52" href="#__codelineno-39-52"></a><span class="w"> </span><span class="c1">### 队首出队 ###</span>
|
||||
<a id="__codelineno-39-53" name="__codelineno-39-53" href="#__codelineno-39-53"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">pop_first</span>
|
||||
<a id="__codelineno-39-54" name="__codelineno-39-54" href="#__codelineno-39-54"></a><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">peek_first</span>
|
||||
<a id="__codelineno-39-55" name="__codelineno-39-55" href="#__codelineno-39-55"></a><span class="w"> </span><span class="c1"># 队首指针向后移动一位</span>
|
||||
<a id="__codelineno-39-56" name="__codelineno-39-56" href="#__codelineno-39-56"></a><span class="w"> </span><span class="vi">@front</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">(</span><span class="vi">@front</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-39-57" name="__codelineno-39-57" href="#__codelineno-39-57"></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-39-58" name="__codelineno-39-58" href="#__codelineno-39-58"></a><span class="w"> </span><span class="n">num</span>
|
||||
<a id="__codelineno-39-59" name="__codelineno-39-59" href="#__codelineno-39-59"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-60" name="__codelineno-39-60" href="#__codelineno-39-60"></a>
|
||||
<a id="__codelineno-39-61" name="__codelineno-39-61" href="#__codelineno-39-61"></a><span class="w"> </span><span class="c1">### 队尾出队 ###</span>
|
||||
<a id="__codelineno-39-62" name="__codelineno-39-62" href="#__codelineno-39-62"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">pop_last</span>
|
||||
<a id="__codelineno-39-63" name="__codelineno-39-63" href="#__codelineno-39-63"></a><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">peek_last</span>
|
||||
<a id="__codelineno-39-64" name="__codelineno-39-64" href="#__codelineno-39-64"></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-39-65" name="__codelineno-39-65" href="#__codelineno-39-65"></a><span class="w"> </span><span class="n">num</span>
|
||||
<a id="__codelineno-39-66" name="__codelineno-39-66" href="#__codelineno-39-66"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-67" name="__codelineno-39-67" href="#__codelineno-39-67"></a>
|
||||
<a id="__codelineno-39-68" name="__codelineno-39-68" href="#__codelineno-39-68"></a><span class="w"> </span><span class="c1">### 访问队首元素 ###</span>
|
||||
<a id="__codelineno-39-69" name="__codelineno-39-69" href="#__codelineno-39-69"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">peek_first</span>
|
||||
<a id="__codelineno-39-70" name="__codelineno-39-70" href="#__codelineno-39-70"></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="s1">'双向队列为空'</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">is_empty?</span>
|
||||
<a id="__codelineno-39-71" name="__codelineno-39-71" href="#__codelineno-39-71"></a>
|
||||
<a id="__codelineno-39-72" name="__codelineno-39-72" href="#__codelineno-39-72"></a><span class="w"> </span><span class="vi">@nums</span><span class="o">[</span><span class="vi">@front</span><span class="o">]</span>
|
||||
<a id="__codelineno-39-73" name="__codelineno-39-73" href="#__codelineno-39-73"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-74" name="__codelineno-39-74" href="#__codelineno-39-74"></a>
|
||||
<a id="__codelineno-39-75" name="__codelineno-39-75" href="#__codelineno-39-75"></a><span class="w"> </span><span class="c1">### 访问队尾元素 ###</span>
|
||||
<a id="__codelineno-39-76" name="__codelineno-39-76" href="#__codelineno-39-76"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">peek_last</span>
|
||||
<a id="__codelineno-39-77" name="__codelineno-39-77" href="#__codelineno-39-77"></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="s1">'双向队列为空'</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">is_empty?</span>
|
||||
<a id="__codelineno-39-78" name="__codelineno-39-78" href="#__codelineno-39-78"></a>
|
||||
<a id="__codelineno-39-79" name="__codelineno-39-79" href="#__codelineno-39-79"></a><span class="w"> </span><span class="c1"># 计算尾元素索引</span>
|
||||
<a id="__codelineno-39-80" name="__codelineno-39-80" href="#__codelineno-39-80"></a><span class="w"> </span><span class="n">last</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">(</span><span class="vi">@front</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>
|
||||
<a id="__codelineno-39-81" name="__codelineno-39-81" href="#__codelineno-39-81"></a><span class="w"> </span><span class="vi">@nums</span><span class="o">[</span><span class="n">last</span><span class="o">]</span>
|
||||
<a id="__codelineno-39-82" name="__codelineno-39-82" href="#__codelineno-39-82"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-83" name="__codelineno-39-83" href="#__codelineno-39-83"></a>
|
||||
<a id="__codelineno-39-84" name="__codelineno-39-84" href="#__codelineno-39-84"></a><span class="w"> </span><span class="c1">### 返回数组用于打印 ###</span>
|
||||
<a id="__codelineno-39-85" name="__codelineno-39-85" href="#__codelineno-39-85"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">to_array</span>
|
||||
<a id="__codelineno-39-86" name="__codelineno-39-86" href="#__codelineno-39-86"></a><span class="w"> </span><span class="c1"># 仅转换有效长度范围内的列表元素</span>
|
||||
<a id="__codelineno-39-87" name="__codelineno-39-87" href="#__codelineno-39-87"></a><span class="w"> </span><span class="n">res</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">[]</span>
|
||||
<a id="__codelineno-39-88" name="__codelineno-39-88" href="#__codelineno-39-88"></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">size</span>
|
||||
<a id="__codelineno-39-89" name="__codelineno-39-89" href="#__codelineno-39-89"></a><span class="w"> </span><span class="n">res</span><span class="w"> </span><span class="o"><<</span><span class="w"> </span><span class="vi">@nums</span><span class="o">[</span><span class="n">index</span><span class="p">(</span><span class="vi">@front</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">i</span><span class="p">)</span><span class="o">]</span>
|
||||
<a id="__codelineno-39-90" name="__codelineno-39-90" href="#__codelineno-39-90"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-91" name="__codelineno-39-91" href="#__codelineno-39-91"></a><span class="w"> </span><span class="n">res</span>
|
||||
<a id="__codelineno-39-92" name="__codelineno-39-92" href="#__codelineno-39-92"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-93" name="__codelineno-39-93" href="#__codelineno-39-93"></a>
|
||||
<a id="__codelineno-39-94" name="__codelineno-39-94" href="#__codelineno-39-94"></a><span class="w"> </span><span class="kp">private</span>
|
||||
<a id="__codelineno-39-95" name="__codelineno-39-95" href="#__codelineno-39-95"></a>
|
||||
<a id="__codelineno-39-96" name="__codelineno-39-96" href="#__codelineno-39-96"></a><span class="w"> </span><span class="c1">### 计算环形数组索引 ###</span>
|
||||
<a id="__codelineno-39-97" name="__codelineno-39-97" href="#__codelineno-39-97"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">index</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
|
||||
<a id="__codelineno-39-98" name="__codelineno-39-98" href="#__codelineno-39-98"></a><span class="w"> </span><span class="c1"># 通过取余操作实现数组首尾相连</span>
|
||||
<a id="__codelineno-39-99" name="__codelineno-39-99" href="#__codelineno-39-99"></a><span class="w"> </span><span class="c1"># 当 i 越过数组尾部后，回到头部</span>
|
||||
<a id="__codelineno-39-100" name="__codelineno-39-100" href="#__codelineno-39-100"></a><span class="w"> </span><span class="c1"># 当 i 越过数组头部后，回到尾部</span>
|
||||
<a id="__codelineno-39-101" name="__codelineno-39-101" href="#__codelineno-39-101"></a><span class="w"> </span><span class="p">(</span><span class="n">i</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">capacity</span>
|
||||
<a id="__codelineno-39-102" name="__codelineno-39-102" href="#__codelineno-39-102"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-103" name="__codelineno-39-103" href="#__codelineno-39-103"></a><span class="k">end</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
|
||||
@@ -3286,7 +3286,7 @@
|
||||
<a id="__codelineno-24-44" name="__codelineno-24-44" href="#__codelineno-24-44"></a><span class="w"> </span><span class="cm">/* 访问队首元素 */</span>
|
||||
<a id="__codelineno-24-45" name="__codelineno-24-45" href="#__codelineno-24-45"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">peek</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-24-46" name="__codelineno-24-46" href="#__codelineno-24-46"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">isEmpty</span><span class="p">())</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">()</span>
|
||||
<a id="__codelineno-24-47" name="__codelineno-24-47" href="#__codelineno-24-47"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">front</span><span class="o">!!</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-24-47" name="__codelineno-24-47" href="#__codelineno-24-47"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">front</span><span class="o">!!</span><span class="p">.</span><span class="na">_val</span>
|
||||
<a id="__codelineno-24-48" name="__codelineno-24-48" href="#__codelineno-24-48"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-24-49" name="__codelineno-24-49" href="#__codelineno-24-49"></a>
|
||||
<a id="__codelineno-24-50" name="__codelineno-24-50" href="#__codelineno-24-50"></a><span class="w"> </span><span class="cm">/* 将链表转化为 Array 并返回 */</span>
|
||||
@@ -3294,7 +3294,7 @@
|
||||
<a id="__codelineno-24-52" name="__codelineno-24-52" href="#__codelineno-24-52"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">front</span>
|
||||
<a id="__codelineno-24-53" name="__codelineno-24-53" href="#__codelineno-24-53"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">res</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-24-54" name="__codelineno-24-54" href="#__codelineno-24-54"></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="n">res</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-24-55" name="__codelineno-24-55" href="#__codelineno-24-55"></a><span class="w"> </span><span class="n">res</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">node</span><span class="o">!!</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-24-55" name="__codelineno-24-55" href="#__codelineno-24-55"></a><span class="w"> </span><span class="n">res</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">node</span><span class="o">!!</span><span class="p">.</span><span class="na">_val</span>
|
||||
<a id="__codelineno-24-56" name="__codelineno-24-56" href="#__codelineno-24-56"></a><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">next</span>
|
||||
<a id="__codelineno-24-57" name="__codelineno-24-57" href="#__codelineno-24-57"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-24-58" name="__codelineno-24-58" href="#__codelineno-24-58"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">res</span>
|
||||
@@ -3303,7 +3303,68 @@
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
<div class="highlight"><span class="filename">linkedlist_queue.rb</span><pre><span></span><code><a id="__codelineno-25-1" name="__codelineno-25-1" href="#__codelineno-25-1"></a><span class="o">[</span><span class="n">class</span><span class="o">]</span><span class="p">{</span><span class="no">LinkedListQueue</span><span class="p">}</span><span class="o">-[</span><span class="n">func</span><span class="o">]</span><span class="p">{}</span>
|
||||
<div class="highlight"><span class="filename">linkedlist_queue.rb</span><pre><span></span><code><a id="__codelineno-25-1" name="__codelineno-25-1" href="#__codelineno-25-1"></a><span class="c1">### 基于链表头现的队列 ###</span>
|
||||
<a id="__codelineno-25-2" name="__codelineno-25-2" href="#__codelineno-25-2"></a><span class="k">class</span><span class="w"> </span><span class="nc">LinkedListQueue</span>
|
||||
<a id="__codelineno-25-3" name="__codelineno-25-3" href="#__codelineno-25-3"></a><span class="w"> </span><span class="c1">### 获取队列的长度 ###</span>
|
||||
<a id="__codelineno-25-4" name="__codelineno-25-4" href="#__codelineno-25-4"></a><span class="w"> </span><span class="kp">attr_reader</span><span class="w"> </span><span class="ss">:size</span>
|
||||
<a id="__codelineno-25-5" name="__codelineno-25-5" href="#__codelineno-25-5"></a>
|
||||
<a id="__codelineno-25-6" name="__codelineno-25-6" href="#__codelineno-25-6"></a><span class="w"> </span><span class="c1">### 构造方法 ###</span>
|
||||
<a id="__codelineno-25-7" name="__codelineno-25-7" href="#__codelineno-25-7"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">initialize</span>
|
||||
<a id="__codelineno-25-8" name="__codelineno-25-8" href="#__codelineno-25-8"></a><span class="w"> </span><span class="vi">@front</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">nil</span><span class="w"> </span><span class="c1"># 头节点 front</span>
|
||||
<a id="__codelineno-25-9" name="__codelineno-25-9" href="#__codelineno-25-9"></a><span class="w"> </span><span class="vi">@rear</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">nil</span><span class="w"> </span><span class="c1"># 尾节点 rear</span>
|
||||
<a id="__codelineno-25-10" name="__codelineno-25-10" href="#__codelineno-25-10"></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-25-11" name="__codelineno-25-11" href="#__codelineno-25-11"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-12" name="__codelineno-25-12" href="#__codelineno-25-12"></a>
|
||||
<a id="__codelineno-25-13" name="__codelineno-25-13" href="#__codelineno-25-13"></a><span class="w"> </span><span class="c1">### 判断队列是否为空 ###</span>
|
||||
<a id="__codelineno-25-14" name="__codelineno-25-14" href="#__codelineno-25-14"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">is_empty?</span>
|
||||
<a id="__codelineno-25-15" name="__codelineno-25-15" href="#__codelineno-25-15"></a><span class="w"> </span><span class="vi">@front</span><span class="o">.</span><span class="n">nil?</span>
|
||||
<a id="__codelineno-25-16" name="__codelineno-25-16" href="#__codelineno-25-16"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-17" name="__codelineno-25-17" href="#__codelineno-25-17"></a>
|
||||
<a id="__codelineno-25-18" name="__codelineno-25-18" href="#__codelineno-25-18"></a><span class="w"> </span><span class="c1">### 入队 ###</span>
|
||||
<a id="__codelineno-25-19" name="__codelineno-25-19" href="#__codelineno-25-19"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">push</span><span class="p">(</span><span class="n">num</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-20" name="__codelineno-25-20" href="#__codelineno-25-20"></a><span class="w"> </span><span class="c1"># 在尾节点后添加 num</span>
|
||||
<a id="__codelineno-25-21" name="__codelineno-25-21" href="#__codelineno-25-21"></a><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="no">ListNode</span><span class="o">.</span><span class="n">new</span><span class="p">(</span><span class="n">num</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-22" name="__codelineno-25-22" href="#__codelineno-25-22"></a>
|
||||
<a id="__codelineno-25-23" name="__codelineno-25-23" href="#__codelineno-25-23"></a><span class="w"> </span><span class="c1"># 如果队列为空，则令头，尾节点都指向该节点</span>
|
||||
<a id="__codelineno-25-24" name="__codelineno-25-24" href="#__codelineno-25-24"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="vi">@front</span><span class="o">.</span><span class="n">nil?</span>
|
||||
<a id="__codelineno-25-25" name="__codelineno-25-25" href="#__codelineno-25-25"></a><span class="w"> </span><span class="vi">@front</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-25-26" name="__codelineno-25-26" href="#__codelineno-25-26"></a><span class="w"> </span><span class="vi">@rear</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-25-27" name="__codelineno-25-27" href="#__codelineno-25-27"></a><span class="w"> </span><span class="c1"># 如果队列不为空，则令该节点添加到尾节点后</span>
|
||||
<a id="__codelineno-25-28" name="__codelineno-25-28" href="#__codelineno-25-28"></a><span class="w"> </span><span class="k">else</span>
|
||||
<a id="__codelineno-25-29" name="__codelineno-25-29" href="#__codelineno-25-29"></a><span class="w"> </span><span class="vi">@rear</span><span class="o">.</span><span class="n">next</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-25-30" name="__codelineno-25-30" href="#__codelineno-25-30"></a><span class="w"> </span><span class="vi">@rear</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-25-31" name="__codelineno-25-31" href="#__codelineno-25-31"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-32" name="__codelineno-25-32" href="#__codelineno-25-32"></a>
|
||||
<a id="__codelineno-25-33" name="__codelineno-25-33" href="#__codelineno-25-33"></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-25-34" name="__codelineno-25-34" href="#__codelineno-25-34"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-35" name="__codelineno-25-35" href="#__codelineno-25-35"></a>
|
||||
<a id="__codelineno-25-36" name="__codelineno-25-36" href="#__codelineno-25-36"></a><span class="w"> </span><span class="c1">### 出队 ###</span>
|
||||
<a id="__codelineno-25-37" name="__codelineno-25-37" href="#__codelineno-25-37"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">pop</span>
|
||||
<a id="__codelineno-25-38" name="__codelineno-25-38" href="#__codelineno-25-38"></a><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">peek</span>
|
||||
<a id="__codelineno-25-39" name="__codelineno-25-39" href="#__codelineno-25-39"></a><span class="w"> </span><span class="c1"># 删除头节点</span>
|
||||
<a id="__codelineno-25-40" name="__codelineno-25-40" href="#__codelineno-25-40"></a><span class="w"> </span><span class="vi">@front</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@front</span><span class="o">.</span><span class="n">next</span>
|
||||
<a id="__codelineno-25-41" name="__codelineno-25-41" href="#__codelineno-25-41"></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-25-42" name="__codelineno-25-42" href="#__codelineno-25-42"></a><span class="w"> </span><span class="n">num</span>
|
||||
<a id="__codelineno-25-43" name="__codelineno-25-43" href="#__codelineno-25-43"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-44" name="__codelineno-25-44" href="#__codelineno-25-44"></a>
|
||||
<a id="__codelineno-25-45" name="__codelineno-25-45" href="#__codelineno-25-45"></a><span class="w"> </span><span class="c1">### 访问队首元素 ###</span>
|
||||
<a id="__codelineno-25-46" name="__codelineno-25-46" href="#__codelineno-25-46"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">peek</span>
|
||||
<a id="__codelineno-25-47" name="__codelineno-25-47" href="#__codelineno-25-47"></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="s1">'队列为空'</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">is_empty?</span>
|
||||
<a id="__codelineno-25-48" name="__codelineno-25-48" href="#__codelineno-25-48"></a>
|
||||
<a id="__codelineno-25-49" name="__codelineno-25-49" href="#__codelineno-25-49"></a><span class="w"> </span><span class="vi">@front</span><span class="o">.</span><span class="n">val</span>
|
||||
<a id="__codelineno-25-50" name="__codelineno-25-50" href="#__codelineno-25-50"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-51" name="__codelineno-25-51" href="#__codelineno-25-51"></a>
|
||||
<a id="__codelineno-25-52" name="__codelineno-25-52" href="#__codelineno-25-52"></a><span class="w"> </span><span class="c1">### 将链表为 Array 并返回 ###</span>
|
||||
<a id="__codelineno-25-53" name="__codelineno-25-53" href="#__codelineno-25-53"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">to_array</span>
|
||||
<a id="__codelineno-25-54" name="__codelineno-25-54" href="#__codelineno-25-54"></a><span class="w"> </span><span class="n">queue</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">[]</span>
|
||||
<a id="__codelineno-25-55" name="__codelineno-25-55" href="#__codelineno-25-55"></a><span class="w"> </span><span class="n">temp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@front</span>
|
||||
<a id="__codelineno-25-56" name="__codelineno-25-56" href="#__codelineno-25-56"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="n">temp</span>
|
||||
<a id="__codelineno-25-57" name="__codelineno-25-57" href="#__codelineno-25-57"></a><span class="w"> </span><span class="n">queue</span><span class="w"> </span><span class="o"><<</span><span class="w"> </span><span class="n">temp</span><span class="o">.</span><span class="n">val</span>
|
||||
<a id="__codelineno-25-58" name="__codelineno-25-58" href="#__codelineno-25-58"></a><span class="w"> </span><span class="n">temp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">temp</span><span class="o">.</span><span class="n">next</span>
|
||||
<a id="__codelineno-25-59" name="__codelineno-25-59" href="#__codelineno-25-59"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-60" name="__codelineno-25-60" href="#__codelineno-25-60"></a><span class="w"> </span><span class="n">queue</span>
|
||||
<a id="__codelineno-25-61" name="__codelineno-25-61" href="#__codelineno-25-61"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-62" name="__codelineno-25-62" href="#__codelineno-25-62"></a><span class="k">end</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
@@ -4198,9 +4259,9 @@
|
||||
<div class="tabbed-block">
|
||||
<div class="highlight"><span class="filename">array_queue.kt</span><pre><span></span><code><a id="__codelineno-38-1" name="__codelineno-38-1" href="#__codelineno-38-1"></a><span class="cm">/* 基于环形数组实现的队列 */</span>
|
||||
<a id="__codelineno-38-2" name="__codelineno-38-2" href="#__codelineno-38-2"></a><span class="kd">class</span><span class="w"> </span><span class="nc">ArrayQueue</span><span class="p">(</span><span class="n">capacity</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-38-3" name="__codelineno-38-3" href="#__codelineno-38-3"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">val</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">IntArray</span><span class="p">(</span><span class="n">capacity</span><span class="p">)</span><span class="w"> </span><span class="c1">// 用于存储队列元素的数组</span>
|
||||
<a id="__codelineno-38-4" name="__codelineno-38-4" href="#__codelineno-38-4"></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">front</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">// 队首指针，指向队首元素</span>
|
||||
<a id="__codelineno-38-5" name="__codelineno-38-5" href="#__codelineno-38-5"></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">queSize</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">// 队列长度</span>
|
||||
<a id="__codelineno-38-3" name="__codelineno-38-3" href="#__codelineno-38-3"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">nums</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">IntArray</span><span class="p">(</span><span class="n">capacity</span><span class="p">)</span><span class="w"> </span><span class="c1">// 用于存储队列元素的数组</span>
|
||||
<a id="__codelineno-38-4" name="__codelineno-38-4" href="#__codelineno-38-4"></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">front</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">// 队首指针，指向队首元素</span>
|
||||
<a id="__codelineno-38-5" name="__codelineno-38-5" href="#__codelineno-38-5"></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">queSize</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">// 队列长度</span>
|
||||
<a id="__codelineno-38-6" name="__codelineno-38-6" href="#__codelineno-38-6"></a>
|
||||
<a id="__codelineno-38-7" name="__codelineno-38-7" href="#__codelineno-38-7"></a><span class="w"> </span><span class="cm">/* 获取队列的容量 */</span>
|
||||
<a id="__codelineno-38-8" name="__codelineno-38-8" href="#__codelineno-38-8"></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>
|
||||
@@ -4263,7 +4324,69 @@
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
<div class="highlight"><span class="filename">array_queue.rb</span><pre><span></span><code><a id="__codelineno-39-1" name="__codelineno-39-1" href="#__codelineno-39-1"></a><span class="o">[</span><span class="n">class</span><span class="o">]</span><span class="p">{</span><span class="no">ArrayQueue</span><span class="p">}</span><span class="o">-[</span><span class="n">func</span><span class="o">]</span><span class="p">{}</span>
|
||||
<div class="highlight"><span class="filename">array_queue.rb</span><pre><span></span><code><a id="__codelineno-39-1" name="__codelineno-39-1" href="#__codelineno-39-1"></a><span class="c1">### 基于环形数组实现的队列 ###</span>
|
||||
<a id="__codelineno-39-2" name="__codelineno-39-2" href="#__codelineno-39-2"></a><span class="k">class</span><span class="w"> </span><span class="nc">ArrayQueue</span>
|
||||
<a id="__codelineno-39-3" name="__codelineno-39-3" href="#__codelineno-39-3"></a><span class="w"> </span><span class="c1">### 获取队列的长度 ###</span>
|
||||
<a id="__codelineno-39-4" name="__codelineno-39-4" href="#__codelineno-39-4"></a><span class="w"> </span><span class="kp">attr_reader</span><span class="w"> </span><span class="ss">:size</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="w"> </span><span class="c1">### 构造方法 ###</span>
|
||||
<a id="__codelineno-39-7" name="__codelineno-39-7" href="#__codelineno-39-7"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">initialize</span><span class="p">(</span><span class="n">size</span><span class="p">)</span>
|
||||
<a id="__codelineno-39-8" name="__codelineno-39-8" href="#__codelineno-39-8"></a><span class="w"> </span><span class="vi">@nums</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">size</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"># 用于存储队列元素的数组</span>
|
||||
<a id="__codelineno-39-9" name="__codelineno-39-9" href="#__codelineno-39-9"></a><span class="w"> </span><span class="vi">@front</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"># 队首指针，指向队首元素</span>
|
||||
<a id="__codelineno-39-10" name="__codelineno-39-10" href="#__codelineno-39-10"></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><span class="w"> </span><span class="c1"># 队列长度</span>
|
||||
<a id="__codelineno-39-11" name="__codelineno-39-11" href="#__codelineno-39-11"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-12" name="__codelineno-39-12" href="#__codelineno-39-12"></a>
|
||||
<a id="__codelineno-39-13" name="__codelineno-39-13" href="#__codelineno-39-13"></a><span class="w"> </span><span class="c1">### 获取队列的容量 ###</span>
|
||||
<a id="__codelineno-39-14" name="__codelineno-39-14" href="#__codelineno-39-14"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">capacity</span>
|
||||
<a id="__codelineno-39-15" name="__codelineno-39-15" href="#__codelineno-39-15"></a><span class="w"> </span><span class="vi">@nums</span><span class="o">.</span><span class="n">length</span>
|
||||
<a id="__codelineno-39-16" name="__codelineno-39-16" href="#__codelineno-39-16"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-17" name="__codelineno-39-17" href="#__codelineno-39-17"></a>
|
||||
<a id="__codelineno-39-18" name="__codelineno-39-18" href="#__codelineno-39-18"></a><span class="w"> </span><span class="c1">### 判断队列是否为空 ###</span>
|
||||
<a id="__codelineno-39-19" name="__codelineno-39-19" href="#__codelineno-39-19"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">is_empty?</span>
|
||||
<a id="__codelineno-39-20" name="__codelineno-39-20" href="#__codelineno-39-20"></a><span class="w"> </span><span class="n">size</span><span class="o">.</span><span class="n">zero?</span>
|
||||
<a id="__codelineno-39-21" name="__codelineno-39-21" href="#__codelineno-39-21"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-22" name="__codelineno-39-22" href="#__codelineno-39-22"></a>
|
||||
<a id="__codelineno-39-23" name="__codelineno-39-23" href="#__codelineno-39-23"></a><span class="w"> </span><span class="c1">### 入队 ###</span>
|
||||
<a id="__codelineno-39-24" name="__codelineno-39-24" href="#__codelineno-39-24"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">push</span><span class="p">(</span><span class="n">num</span><span class="p">)</span>
|
||||
<a id="__codelineno-39-25" name="__codelineno-39-25" href="#__codelineno-39-25"></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="s1">'队列已满'</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-39-26" name="__codelineno-39-26" href="#__codelineno-39-26"></a>
|
||||
<a id="__codelineno-39-27" name="__codelineno-39-27" href="#__codelineno-39-27"></a><span class="w"> </span><span class="c1"># 计算队尾指针，指向队尾索引 + 1</span>
|
||||
<a id="__codelineno-39-28" name="__codelineno-39-28" href="#__codelineno-39-28"></a><span class="w"> </span><span class="c1"># 通过取余操作实现 rear 越过数组尾部后回到头部</span>
|
||||
<a id="__codelineno-39-29" name="__codelineno-39-29" href="#__codelineno-39-29"></a><span class="w"> </span><span class="n">rear</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="vi">@front</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="n">capacity</span>
|
||||
<a id="__codelineno-39-30" name="__codelineno-39-30" href="#__codelineno-39-30"></a><span class="w"> </span><span class="c1"># 将 num 添加至队尾</span>
|
||||
<a id="__codelineno-39-31" name="__codelineno-39-31" href="#__codelineno-39-31"></a><span class="w"> </span><span class="vi">@nums</span><span class="o">[</span><span class="n">rear</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-39-32" name="__codelineno-39-32" href="#__codelineno-39-32"></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-39-33" name="__codelineno-39-33" href="#__codelineno-39-33"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-34" name="__codelineno-39-34" href="#__codelineno-39-34"></a>
|
||||
<a id="__codelineno-39-35" name="__codelineno-39-35" href="#__codelineno-39-35"></a><span class="w"> </span><span class="c1">### 出队 ###</span>
|
||||
<a id="__codelineno-39-36" name="__codelineno-39-36" href="#__codelineno-39-36"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">pop</span>
|
||||
<a id="__codelineno-39-37" name="__codelineno-39-37" href="#__codelineno-39-37"></a><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">peek</span>
|
||||
<a id="__codelineno-39-38" name="__codelineno-39-38" href="#__codelineno-39-38"></a><span class="w"> </span><span class="c1"># 队首指针向后移动一位，若越过尾部，则返回到数组头部</span>
|
||||
<a id="__codelineno-39-39" name="__codelineno-39-39" href="#__codelineno-39-39"></a><span class="w"> </span><span class="vi">@front</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="vi">@front</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">capacity</span>
|
||||
<a id="__codelineno-39-40" name="__codelineno-39-40" href="#__codelineno-39-40"></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-39-41" name="__codelineno-39-41" href="#__codelineno-39-41"></a><span class="w"> </span><span class="n">num</span>
|
||||
<a id="__codelineno-39-42" name="__codelineno-39-42" href="#__codelineno-39-42"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-43" name="__codelineno-39-43" href="#__codelineno-39-43"></a>
|
||||
<a id="__codelineno-39-44" name="__codelineno-39-44" href="#__codelineno-39-44"></a><span class="w"> </span><span class="c1">### 访问队首元素 ###</span>
|
||||
<a id="__codelineno-39-45" name="__codelineno-39-45" href="#__codelineno-39-45"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">peek</span>
|
||||
<a id="__codelineno-39-46" name="__codelineno-39-46" href="#__codelineno-39-46"></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="s1">'队列为空'</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">is_empty?</span>
|
||||
<a id="__codelineno-39-47" name="__codelineno-39-47" href="#__codelineno-39-47"></a>
|
||||
<a id="__codelineno-39-48" name="__codelineno-39-48" href="#__codelineno-39-48"></a><span class="w"> </span><span class="vi">@nums</span><span class="o">[</span><span class="vi">@front</span><span class="o">]</span>
|
||||
<a id="__codelineno-39-49" name="__codelineno-39-49" href="#__codelineno-39-49"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-50" name="__codelineno-39-50" href="#__codelineno-39-50"></a>
|
||||
<a id="__codelineno-39-51" name="__codelineno-39-51" href="#__codelineno-39-51"></a><span class="w"> </span><span class="c1">### 返回列表用于打印 ###</span>
|
||||
<a id="__codelineno-39-52" name="__codelineno-39-52" href="#__codelineno-39-52"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">to_array</span>
|
||||
<a id="__codelineno-39-53" name="__codelineno-39-53" href="#__codelineno-39-53"></a><span class="w"> </span><span class="n">res</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">size</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">)</span>
|
||||
<a id="__codelineno-39-54" name="__codelineno-39-54" href="#__codelineno-39-54"></a><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@front</span>
|
||||
<a id="__codelineno-39-55" name="__codelineno-39-55" href="#__codelineno-39-55"></a>
|
||||
<a id="__codelineno-39-56" name="__codelineno-39-56" href="#__codelineno-39-56"></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">size</span>
|
||||
<a id="__codelineno-39-57" name="__codelineno-39-57" href="#__codelineno-39-57"></a><span class="w"> </span><span class="n">res</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="vi">@nums</span><span class="o">[</span><span class="n">j</span><span class="w"> </span><span class="o">%</span><span class="w"> </span><span class="n">capacity</span><span class="o">]</span>
|
||||
<a id="__codelineno-39-58" name="__codelineno-39-58" href="#__codelineno-39-58"></a><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span>
|
||||
<a id="__codelineno-39-59" name="__codelineno-39-59" href="#__codelineno-39-59"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-60" name="__codelineno-39-60" href="#__codelineno-39-60"></a>
|
||||
<a id="__codelineno-39-61" name="__codelineno-39-61" href="#__codelineno-39-61"></a><span class="w"> </span><span class="n">res</span>
|
||||
<a id="__codelineno-39-62" name="__codelineno-39-62" href="#__codelineno-39-62"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-63" name="__codelineno-39-63" href="#__codelineno-39-63"></a><span class="k">end</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
|
||||
@@ -3173,7 +3173,7 @@
|
||||
<a id="__codelineno-24-33" name="__codelineno-24-33" href="#__codelineno-24-33"></a><span class="w"> </span><span class="cm">/* 访问栈顶元素 */</span>
|
||||
<a id="__codelineno-24-34" name="__codelineno-24-34" href="#__codelineno-24-34"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">peek</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-24-35" name="__codelineno-24-35" href="#__codelineno-24-35"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">isEmpty</span><span class="p">())</span><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">()</span>
|
||||
<a id="__codelineno-24-36" name="__codelineno-24-36" href="#__codelineno-24-36"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">stackPeek</span><span class="o">?.</span><span class="na">value</span>
|
||||
<a id="__codelineno-24-36" name="__codelineno-24-36" href="#__codelineno-24-36"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">stackPeek</span><span class="o">?.</span><span class="na">_val</span>
|
||||
<a id="__codelineno-24-37" name="__codelineno-24-37" href="#__codelineno-24-37"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-24-38" name="__codelineno-24-38" href="#__codelineno-24-38"></a>
|
||||
<a id="__codelineno-24-39" name="__codelineno-24-39" href="#__codelineno-24-39"></a><span class="w"> </span><span class="cm">/* 将 List 转化为 Array 并返回 */</span>
|
||||
@@ -3181,7 +3181,7 @@
|
||||
<a id="__codelineno-24-41" name="__codelineno-24-41" href="#__codelineno-24-41"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">stackPeek</span>
|
||||
<a id="__codelineno-24-42" name="__codelineno-24-42" href="#__codelineno-24-42"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">res</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-24-43" name="__codelineno-24-43" href="#__codelineno-24-43"></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="n">res</span><span class="p">.</span><span class="na">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="m">0</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-24-44" name="__codelineno-24-44" href="#__codelineno-24-44"></a><span class="w"> </span><span class="n">res</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">node</span><span class="o">?.</span><span class="na">value</span><span class="o">!!</span>
|
||||
<a id="__codelineno-24-44" name="__codelineno-24-44" href="#__codelineno-24-44"></a><span class="w"> </span><span class="n">res</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">node</span><span class="o">?.</span><span class="na">_val</span><span class="o">!!</span>
|
||||
<a id="__codelineno-24-45" name="__codelineno-24-45" href="#__codelineno-24-45"></a><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">next</span>
|
||||
<a id="__codelineno-24-46" name="__codelineno-24-46" href="#__codelineno-24-46"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-24-47" name="__codelineno-24-47" href="#__codelineno-24-47"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">res</span>
|
||||
@@ -3190,7 +3190,54 @@
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
<div class="highlight"><span class="filename">linkedlist_stack.rb</span><pre><span></span><code><a id="__codelineno-25-1" name="__codelineno-25-1" href="#__codelineno-25-1"></a><span class="o">[</span><span class="n">class</span><span class="o">]</span><span class="p">{</span><span class="no">LinkedListStack</span><span class="p">}</span><span class="o">-[</span><span class="n">func</span><span class="o">]</span><span class="p">{}</span>
|
||||
<div class="highlight"><span class="filename">linkedlist_stack.rb</span><pre><span></span><code><a id="__codelineno-25-1" name="__codelineno-25-1" href="#__codelineno-25-1"></a><span class="c1">### 基于链表实现的栈 ###</span>
|
||||
<a id="__codelineno-25-2" name="__codelineno-25-2" href="#__codelineno-25-2"></a><span class="k">class</span><span class="w"> </span><span class="nc">LinkedListStack</span>
|
||||
<a id="__codelineno-25-3" name="__codelineno-25-3" href="#__codelineno-25-3"></a><span class="w"> </span><span class="kp">attr_reader</span><span class="w"> </span><span class="ss">:size</span>
|
||||
<a id="__codelineno-25-4" name="__codelineno-25-4" href="#__codelineno-25-4"></a>
|
||||
<a id="__codelineno-25-5" name="__codelineno-25-5" href="#__codelineno-25-5"></a><span class="w"> </span><span class="c1">### 构造方法 ###</span>
|
||||
<a id="__codelineno-25-6" name="__codelineno-25-6" href="#__codelineno-25-6"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">initialize</span>
|
||||
<a id="__codelineno-25-7" name="__codelineno-25-7" href="#__codelineno-25-7"></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-25-8" name="__codelineno-25-8" href="#__codelineno-25-8"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-9" name="__codelineno-25-9" href="#__codelineno-25-9"></a>
|
||||
<a id="__codelineno-25-10" name="__codelineno-25-10" href="#__codelineno-25-10"></a><span class="w"> </span><span class="c1">### 判断栈是否为空 ###</span>
|
||||
<a id="__codelineno-25-11" name="__codelineno-25-11" href="#__codelineno-25-11"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">is_empty?</span>
|
||||
<a id="__codelineno-25-12" name="__codelineno-25-12" href="#__codelineno-25-12"></a><span class="w"> </span><span class="vi">@peek</span><span class="o">.</span><span class="n">nil?</span>
|
||||
<a id="__codelineno-25-13" name="__codelineno-25-13" href="#__codelineno-25-13"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-14" name="__codelineno-25-14" href="#__codelineno-25-14"></a>
|
||||
<a id="__codelineno-25-15" name="__codelineno-25-15" href="#__codelineno-25-15"></a><span class="w"> </span><span class="c1">### 入栈 ###</span>
|
||||
<a id="__codelineno-25-16" name="__codelineno-25-16" href="#__codelineno-25-16"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">push</span><span class="p">(</span><span class="n">val</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-17" name="__codelineno-25-17" href="#__codelineno-25-17"></a><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="no">ListNode</span><span class="o">.</span><span class="n">new</span><span class="p">(</span><span class="n">val</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-18" name="__codelineno-25-18" href="#__codelineno-25-18"></a><span class="w"> </span><span class="n">node</span><span class="o">.</span><span class="n">next</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@peek</span>
|
||||
<a id="__codelineno-25-19" name="__codelineno-25-19" href="#__codelineno-25-19"></a><span class="w"> </span><span class="vi">@peek</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-25-20" name="__codelineno-25-20" href="#__codelineno-25-20"></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-25-21" name="__codelineno-25-21" href="#__codelineno-25-21"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-22" name="__codelineno-25-22" href="#__codelineno-25-22"></a>
|
||||
<a id="__codelineno-25-23" name="__codelineno-25-23" href="#__codelineno-25-23"></a><span class="w"> </span><span class="c1">### 出栈 ###</span>
|
||||
<a id="__codelineno-25-24" name="__codelineno-25-24" href="#__codelineno-25-24"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">pop</span>
|
||||
<a id="__codelineno-25-25" name="__codelineno-25-25" href="#__codelineno-25-25"></a><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">peek</span>
|
||||
<a id="__codelineno-25-26" name="__codelineno-25-26" href="#__codelineno-25-26"></a><span class="w"> </span><span class="vi">@peek</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@peek</span><span class="o">.</span><span class="n">next</span>
|
||||
<a id="__codelineno-25-27" name="__codelineno-25-27" href="#__codelineno-25-27"></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-25-28" name="__codelineno-25-28" href="#__codelineno-25-28"></a><span class="w"> </span><span class="n">num</span>
|
||||
<a id="__codelineno-25-29" name="__codelineno-25-29" href="#__codelineno-25-29"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-30" name="__codelineno-25-30" href="#__codelineno-25-30"></a>
|
||||
<a id="__codelineno-25-31" name="__codelineno-25-31" href="#__codelineno-25-31"></a><span class="w"> </span><span class="c1">### 访问栈顶元素 ###</span>
|
||||
<a id="__codelineno-25-32" name="__codelineno-25-32" href="#__codelineno-25-32"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">peek</span>
|
||||
<a id="__codelineno-25-33" name="__codelineno-25-33" href="#__codelineno-25-33"></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="s1">'栈为空'</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">is_empty?</span>
|
||||
<a id="__codelineno-25-34" name="__codelineno-25-34" href="#__codelineno-25-34"></a>
|
||||
<a id="__codelineno-25-35" name="__codelineno-25-35" href="#__codelineno-25-35"></a><span class="w"> </span><span class="vi">@peek</span><span class="o">.</span><span class="n">val</span>
|
||||
<a id="__codelineno-25-36" name="__codelineno-25-36" href="#__codelineno-25-36"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-37" name="__codelineno-25-37" href="#__codelineno-25-37"></a>
|
||||
<a id="__codelineno-25-38" name="__codelineno-25-38" href="#__codelineno-25-38"></a><span class="w"> </span><span class="c1">### 将链表转化为 Array 并反回 ###</span>
|
||||
<a id="__codelineno-25-39" name="__codelineno-25-39" href="#__codelineno-25-39"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">to_array</span>
|
||||
<a id="__codelineno-25-40" name="__codelineno-25-40" href="#__codelineno-25-40"></a><span class="w"> </span><span class="n">arr</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">[]</span>
|
||||
<a id="__codelineno-25-41" name="__codelineno-25-41" href="#__codelineno-25-41"></a><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="vi">@peek</span>
|
||||
<a id="__codelineno-25-42" name="__codelineno-25-42" href="#__codelineno-25-42"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-25-43" name="__codelineno-25-43" href="#__codelineno-25-43"></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">node</span><span class="o">.</span><span class="n">val</span>
|
||||
<a id="__codelineno-25-44" name="__codelineno-25-44" href="#__codelineno-25-44"></a><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span><span class="o">.</span><span class="n">next</span>
|
||||
<a id="__codelineno-25-45" name="__codelineno-25-45" href="#__codelineno-25-45"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-46" name="__codelineno-25-46" href="#__codelineno-25-46"></a><span class="w"> </span><span class="n">arr</span><span class="o">.</span><span class="n">reverse</span>
|
||||
<a id="__codelineno-25-47" name="__codelineno-25-47" href="#__codelineno-25-47"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-25-48" name="__codelineno-25-48" href="#__codelineno-25-48"></a><span class="k">end</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
@@ -3810,7 +3857,7 @@
|
||||
<div class="highlight"><span class="filename">array_stack.kt</span><pre><span></span><code><a id="__codelineno-38-1" name="__codelineno-38-1" href="#__codelineno-38-1"></a><span class="cm">/* 基于数组实现的栈 */</span>
|
||||
<a id="__codelineno-38-2" name="__codelineno-38-2" href="#__codelineno-38-2"></a><span class="kd">class</span><span class="w"> </span><span class="nc">ArrayStack</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-3" name="__codelineno-38-3" href="#__codelineno-38-3"></a><span class="w"> </span><span class="c1">// 初始化列表（动态数组）</span>
|
||||
<a id="__codelineno-38-4" name="__codelineno-38-4" href="#__codelineno-38-4"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">stack</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-38-4" name="__codelineno-38-4" href="#__codelineno-38-4"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">stack</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-38-5" name="__codelineno-38-5" href="#__codelineno-38-5"></a>
|
||||
<a id="__codelineno-38-6" name="__codelineno-38-6" href="#__codelineno-38-6"></a><span class="w"> </span><span class="cm">/* 获取栈的长度 */</span>
|
||||
<a id="__codelineno-38-7" name="__codelineno-38-7" href="#__codelineno-38-7"></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>
|
||||
@@ -3841,13 +3888,53 @@
|
||||
<a id="__codelineno-38-32" name="__codelineno-38-32" href="#__codelineno-38-32"></a>
|
||||
<a id="__codelineno-38-33" name="__codelineno-38-33" href="#__codelineno-38-33"></a><span class="w"> </span><span class="cm">/* 将 List 转化为 Array 并返回 */</span>
|
||||
<a id="__codelineno-38-34" name="__codelineno-38-34" href="#__codelineno-38-34"></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">Array</span><span class="o"><</span><span class="kt">Any</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-38-35" name="__codelineno-38-35" href="#__codelineno-38-35"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">stack</span><span class="p">.</span><span class="na">toArray</span><span class="p">()</span>
|
||||
<a id="__codelineno-38-35" name="__codelineno-38-35" href="#__codelineno-38-35"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">stack</span><span class="p">.</span><span class="na">toTypedArray</span><span class="p">()</span>
|
||||
<a id="__codelineno-38-36" name="__codelineno-38-36" href="#__codelineno-38-36"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-38-37" name="__codelineno-38-37" href="#__codelineno-38-37"></a><span class="p">}</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
<div class="highlight"><span class="filename">array_stack.rb</span><pre><span></span><code><a id="__codelineno-39-1" name="__codelineno-39-1" href="#__codelineno-39-1"></a><span class="o">[</span><span class="n">class</span><span class="o">]</span><span class="p">{</span><span class="no">ArrayStack</span><span class="p">}</span><span class="o">-[</span><span class="n">func</span><span class="o">]</span><span class="p">{}</span>
|
||||
<div class="highlight"><span class="filename">array_stack.rb</span><pre><span></span><code><a id="__codelineno-39-1" name="__codelineno-39-1" href="#__codelineno-39-1"></a><span class="c1">### 基于数组实现的栈 ###</span>
|
||||
<a id="__codelineno-39-2" name="__codelineno-39-2" href="#__codelineno-39-2"></a><span class="k">class</span><span class="w"> </span><span class="nc">ArrayStack</span>
|
||||
<a id="__codelineno-39-3" name="__codelineno-39-3" href="#__codelineno-39-3"></a><span class="w"> </span><span class="c1">### 构造方法 ###</span>
|
||||
<a id="__codelineno-39-4" name="__codelineno-39-4" href="#__codelineno-39-4"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">initialize</span>
|
||||
<a id="__codelineno-39-5" name="__codelineno-39-5" href="#__codelineno-39-5"></a><span class="w"> </span><span class="vi">@stack</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">[]</span>
|
||||
<a id="__codelineno-39-6" name="__codelineno-39-6" href="#__codelineno-39-6"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-7" name="__codelineno-39-7" href="#__codelineno-39-7"></a>
|
||||
<a id="__codelineno-39-8" name="__codelineno-39-8" href="#__codelineno-39-8"></a><span class="w"> </span><span class="c1">### 获取栈的长度 ###</span>
|
||||
<a id="__codelineno-39-9" name="__codelineno-39-9" href="#__codelineno-39-9"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">size</span>
|
||||
<a id="__codelineno-39-10" name="__codelineno-39-10" href="#__codelineno-39-10"></a><span class="w"> </span><span class="vi">@stack</span><span class="o">.</span><span class="n">length</span>
|
||||
<a id="__codelineno-39-11" name="__codelineno-39-11" href="#__codelineno-39-11"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-12" name="__codelineno-39-12" href="#__codelineno-39-12"></a>
|
||||
<a id="__codelineno-39-13" name="__codelineno-39-13" href="#__codelineno-39-13"></a><span class="w"> </span><span class="c1">### 判断栈是否为空 ###</span>
|
||||
<a id="__codelineno-39-14" name="__codelineno-39-14" href="#__codelineno-39-14"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">is_empty?</span>
|
||||
<a id="__codelineno-39-15" name="__codelineno-39-15" href="#__codelineno-39-15"></a><span class="w"> </span><span class="vi">@stack</span><span class="o">.</span><span class="n">empty?</span>
|
||||
<a id="__codelineno-39-16" name="__codelineno-39-16" href="#__codelineno-39-16"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-17" name="__codelineno-39-17" href="#__codelineno-39-17"></a>
|
||||
<a id="__codelineno-39-18" name="__codelineno-39-18" href="#__codelineno-39-18"></a><span class="w"> </span><span class="c1">### 入栈 ###</span>
|
||||
<a id="__codelineno-39-19" name="__codelineno-39-19" href="#__codelineno-39-19"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">push</span><span class="p">(</span><span class="n">item</span><span class="p">)</span>
|
||||
<a id="__codelineno-39-20" name="__codelineno-39-20" href="#__codelineno-39-20"></a><span class="w"> </span><span class="vi">@stack</span><span class="w"> </span><span class="o"><<</span><span class="w"> </span><span class="n">item</span>
|
||||
<a id="__codelineno-39-21" name="__codelineno-39-21" href="#__codelineno-39-21"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-22" name="__codelineno-39-22" href="#__codelineno-39-22"></a>
|
||||
<a id="__codelineno-39-23" name="__codelineno-39-23" href="#__codelineno-39-23"></a><span class="w"> </span><span class="c1">### 出栈 ###</span>
|
||||
<a id="__codelineno-39-24" name="__codelineno-39-24" href="#__codelineno-39-24"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">pop</span>
|
||||
<a id="__codelineno-39-25" name="__codelineno-39-25" href="#__codelineno-39-25"></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="s1">'栈为空'</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">is_empty?</span>
|
||||
<a id="__codelineno-39-26" name="__codelineno-39-26" href="#__codelineno-39-26"></a>
|
||||
<a id="__codelineno-39-27" name="__codelineno-39-27" href="#__codelineno-39-27"></a><span class="w"> </span><span class="vi">@stack</span><span class="o">.</span><span class="n">pop</span>
|
||||
<a id="__codelineno-39-28" name="__codelineno-39-28" href="#__codelineno-39-28"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-29" name="__codelineno-39-29" href="#__codelineno-39-29"></a>
|
||||
<a id="__codelineno-39-30" name="__codelineno-39-30" href="#__codelineno-39-30"></a><span class="w"> </span><span class="c1">### 访问栈顶元素 ###</span>
|
||||
<a id="__codelineno-39-31" name="__codelineno-39-31" href="#__codelineno-39-31"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">peek</span>
|
||||
<a id="__codelineno-39-32" name="__codelineno-39-32" href="#__codelineno-39-32"></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="s1">'栈为空'</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">is_empty?</span>
|
||||
<a id="__codelineno-39-33" name="__codelineno-39-33" href="#__codelineno-39-33"></a>
|
||||
<a id="__codelineno-39-34" name="__codelineno-39-34" href="#__codelineno-39-34"></a><span class="w"> </span><span class="vi">@stack</span><span class="o">.</span><span class="n">last</span>
|
||||
<a id="__codelineno-39-35" name="__codelineno-39-35" href="#__codelineno-39-35"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-36" name="__codelineno-39-36" href="#__codelineno-39-36"></a>
|
||||
<a id="__codelineno-39-37" name="__codelineno-39-37" href="#__codelineno-39-37"></a><span class="w"> </span><span class="c1">### 返回列表用于打印 ###</span>
|
||||
<a id="__codelineno-39-38" name="__codelineno-39-38" href="#__codelineno-39-38"></a><span class="w"> </span><span class="k">def</span><span class="w"> </span><span class="nf">to_array</span>
|
||||
<a id="__codelineno-39-39" name="__codelineno-39-39" href="#__codelineno-39-39"></a><span class="w"> </span><span class="vi">@stack</span>
|
||||
<a id="__codelineno-39-40" name="__codelineno-39-40" href="#__codelineno-39-40"></a><span class="w"> </span><span class="k">end</span>
|
||||
<a id="__codelineno-39-41" name="__codelineno-39-41" href="#__codelineno-39-41"></a><span class="k">end</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
|
||||
@@ -3201,8 +3201,8 @@
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
<div class="highlight"><span class="filename">array_binary_tree.kt</span><pre><span></span><code><a id="__codelineno-25-1" name="__codelineno-25-1" href="#__codelineno-25-1"></a><span class="cm">/* 数组表示下的二叉树类 */</span>
|
||||
<a id="__codelineno-25-2" name="__codelineno-25-2" href="#__codelineno-25-2"></a><span class="kd">class</span><span class="w"> </span><span class="nc">ArrayBinaryTree</span><span class="p">(</span><span class="kd">val</span><span class="w"> </span><span class="nv">tree</span><span class="p">:</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="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<div class="highlight"><span class="filename">array_binary_tree.kt</span><pre><span></span><code><a id="__codelineno-25-1" name="__codelineno-25-1" href="#__codelineno-25-1"></a><span class="cm">/* 构造方法 */</span>
|
||||
<a id="__codelineno-25-2" name="__codelineno-25-2" href="#__codelineno-25-2"></a><span class="kd">class</span><span class="w"> </span><span class="nc">ArrayBinaryTree</span><span class="p">(</span><span class="kd">val</span><span class="w"> </span><span class="nv">tree</span><span class="p">:</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">Int?</span><span class="o">></span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-3" name="__codelineno-25-3" href="#__codelineno-25-3"></a><span class="w"> </span><span class="cm">/* 列表容量 */</span>
|
||||
<a id="__codelineno-25-4" name="__codelineno-25-4" href="#__codelineno-25-4"></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-25-5" name="__codelineno-25-5" href="#__codelineno-25-5"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">tree</span><span class="p">.</span><span class="na">size</span>
|
||||
@@ -3231,50 +3231,55 @@
|
||||
<a id="__codelineno-25-28" name="__codelineno-25-28" href="#__codelineno-25-28"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-29" name="__codelineno-25-29" href="#__codelineno-25-29"></a>
|
||||
<a id="__codelineno-25-30" name="__codelineno-25-30" href="#__codelineno-25-30"></a><span class="w"> </span><span class="cm">/* 层序遍历 */</span>
|
||||
<a id="__codelineno-25-31" name="__codelineno-25-31" href="#__codelineno-25-31"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">levelOrder</span><span class="p">():</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="p">{</span>
|
||||
<a id="__codelineno-25-32" name="__codelineno-25-32" href="#__codelineno-25-32"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">res</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><</span><span class="kt">Int?</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-25-31" name="__codelineno-25-31" href="#__codelineno-25-31"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">levelOrder</span><span class="p">():</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">Int?</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-32" name="__codelineno-25-32" href="#__codelineno-25-32"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">res</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="kt">Int?</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-25-33" name="__codelineno-25-33" href="#__codelineno-25-33"></a><span class="w"> </span><span class="c1">// 直接遍历数组</span>
|
||||
<a id="__codelineno-25-34" name="__codelineno-25-34" href="#__codelineno-25-34"></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-25-35" name="__codelineno-25-35" href="#__codelineno-25-35"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">value</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="kc">null</span><span class="p">)</span><span class="w"> </span><span class="n">res</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">value</span><span class="p">(</span><span class="n">i</span><span class="p">))</span>
|
||||
<a id="__codelineno-25-36" name="__codelineno-25-36" href="#__codelineno-25-36"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-37" name="__codelineno-25-37" href="#__codelineno-25-37"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">res</span>
|
||||
<a id="__codelineno-25-38" name="__codelineno-25-38" href="#__codelineno-25-38"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-39" name="__codelineno-25-39" href="#__codelineno-25-39"></a>
|
||||
<a id="__codelineno-25-40" name="__codelineno-25-40" href="#__codelineno-25-40"></a><span class="w"> </span><span class="cm">/* 深度优先遍历 */</span>
|
||||
<a id="__codelineno-25-41" name="__codelineno-25-41" href="#__codelineno-25-41"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">dfs</span><span class="p">(</span><span class="n">i</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">order</span><span class="p">:</span><span class="w"> </span><span class="kt">String</span><span class="p">,</span><span class="w"> </span><span class="n">res</span><span class="p">:</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">Int?</span><span class="o">></span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-42" name="__codelineno-25-42" href="#__codelineno-25-42"></a><span class="w"> </span><span class="c1">// 若为空位，则返回</span>
|
||||
<a id="__codelineno-25-43" name="__codelineno-25-43" href="#__codelineno-25-43"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">value</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="kc">null</span><span class="p">)</span><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-25-44" name="__codelineno-25-44" href="#__codelineno-25-44"></a><span class="w"> </span><span class="c1">// 前序遍历</span>
|
||||
<a id="__codelineno-25-45" name="__codelineno-25-45" href="#__codelineno-25-45"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="s">"pre"</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">order</span><span class="p">)</span><span class="w"> </span><span class="n">res</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">value</span><span class="p">(</span><span class="n">i</span><span class="p">))</span>
|
||||
<a id="__codelineno-25-46" name="__codelineno-25-46" href="#__codelineno-25-46"></a><span class="w"> </span><span class="n">dfs</span><span class="p">(</span><span class="n">left</span><span class="p">(</span><span class="n">i</span><span class="p">),</span><span class="w"> </span><span class="n">order</span><span class="p">,</span><span class="w"> </span><span class="n">res</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-47" name="__codelineno-25-47" href="#__codelineno-25-47"></a><span class="w"> </span><span class="c1">// 中序遍历</span>
|
||||
<a id="__codelineno-25-48" name="__codelineno-25-48" href="#__codelineno-25-48"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="s">"in"</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">order</span><span class="p">)</span><span class="w"> </span><span class="n">res</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">value</span><span class="p">(</span><span class="n">i</span><span class="p">))</span>
|
||||
<a id="__codelineno-25-49" name="__codelineno-25-49" href="#__codelineno-25-49"></a><span class="w"> </span><span class="n">dfs</span><span class="p">(</span><span class="n">right</span><span class="p">(</span><span class="n">i</span><span class="p">),</span><span class="w"> </span><span class="n">order</span><span class="p">,</span><span class="w"> </span><span class="n">res</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-50" name="__codelineno-25-50" href="#__codelineno-25-50"></a><span class="w"> </span><span class="c1">// 后序遍历</span>
|
||||
<a id="__codelineno-25-51" name="__codelineno-25-51" href="#__codelineno-25-51"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="s">"post"</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">order</span><span class="p">)</span><span class="w"> </span><span class="n">res</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">value</span><span class="p">(</span><span class="n">i</span><span class="p">))</span>
|
||||
<a id="__codelineno-25-52" name="__codelineno-25-52" href="#__codelineno-25-52"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-53" name="__codelineno-25-53" href="#__codelineno-25-53"></a>
|
||||
<a id="__codelineno-25-54" name="__codelineno-25-54" href="#__codelineno-25-54"></a><span class="w"> </span><span class="cm">/* 前序遍历 */</span>
|
||||
<a id="__codelineno-25-55" name="__codelineno-25-55" href="#__codelineno-25-55"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">preOrder</span><span class="p">():</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="p">{</span>
|
||||
<a id="__codelineno-25-56" name="__codelineno-25-56" href="#__codelineno-25-56"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">res</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><</span><span class="kt">Int?</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-25-57" name="__codelineno-25-57" href="#__codelineno-25-57"></a><span class="w"> </span><span class="n">dfs</span><span class="p">(</span><span class="m">0</span><span class="p">,</span><span class="w"> </span><span class="s">"pre"</span><span class="p">,</span><span class="w"> </span><span class="n">res</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-58" name="__codelineno-25-58" href="#__codelineno-25-58"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">res</span>
|
||||
<a id="__codelineno-25-59" name="__codelineno-25-59" href="#__codelineno-25-59"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-60" name="__codelineno-25-60" href="#__codelineno-25-60"></a>
|
||||
<a id="__codelineno-25-61" name="__codelineno-25-61" href="#__codelineno-25-61"></a><span class="w"> </span><span class="cm">/* 中序遍历 */</span>
|
||||
<a id="__codelineno-25-62" name="__codelineno-25-62" href="#__codelineno-25-62"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">inOrder</span><span class="p">():</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="p">{</span>
|
||||
<a id="__codelineno-25-63" name="__codelineno-25-63" href="#__codelineno-25-63"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">res</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><</span><span class="kt">Int?</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-25-64" name="__codelineno-25-64" href="#__codelineno-25-64"></a><span class="w"> </span><span class="n">dfs</span><span class="p">(</span><span class="m">0</span><span class="p">,</span><span class="w"> </span><span class="s">"in"</span><span class="p">,</span><span class="w"> </span><span class="n">res</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-65" name="__codelineno-25-65" href="#__codelineno-25-65"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">res</span>
|
||||
<a id="__codelineno-25-66" name="__codelineno-25-66" href="#__codelineno-25-66"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-67" name="__codelineno-25-67" href="#__codelineno-25-67"></a>
|
||||
<a id="__codelineno-25-68" name="__codelineno-25-68" href="#__codelineno-25-68"></a><span class="w"> </span><span class="cm">/* 后序遍历 */</span>
|
||||
<a id="__codelineno-25-69" name="__codelineno-25-69" href="#__codelineno-25-69"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">postOrder</span><span class="p">():</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="p">{</span>
|
||||
<a id="__codelineno-25-70" name="__codelineno-25-70" href="#__codelineno-25-70"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">res</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><</span><span class="kt">Int?</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-25-71" name="__codelineno-25-71" href="#__codelineno-25-71"></a><span class="w"> </span><span class="n">dfs</span><span class="p">(</span><span class="m">0</span><span class="p">,</span><span class="w"> </span><span class="s">"post"</span><span class="p">,</span><span class="w"> </span><span class="n">res</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-72" name="__codelineno-25-72" href="#__codelineno-25-72"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">res</span>
|
||||
<a id="__codelineno-25-73" name="__codelineno-25-73" href="#__codelineno-25-73"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-74" name="__codelineno-25-74" href="#__codelineno-25-74"></a><span class="p">}</span>
|
||||
<a id="__codelineno-25-35" name="__codelineno-25-35" href="#__codelineno-25-35"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">value</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="kc">null</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-36" name="__codelineno-25-36" href="#__codelineno-25-36"></a><span class="w"> </span><span class="n">res</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">value</span><span class="p">(</span><span class="n">i</span><span class="p">))</span>
|
||||
<a id="__codelineno-25-37" name="__codelineno-25-37" href="#__codelineno-25-37"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-38" name="__codelineno-25-38" href="#__codelineno-25-38"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">res</span>
|
||||
<a id="__codelineno-25-39" name="__codelineno-25-39" href="#__codelineno-25-39"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-40" name="__codelineno-25-40" href="#__codelineno-25-40"></a>
|
||||
<a id="__codelineno-25-41" name="__codelineno-25-41" href="#__codelineno-25-41"></a><span class="w"> </span><span class="cm">/* 深度优先遍历 */</span>
|
||||
<a id="__codelineno-25-42" name="__codelineno-25-42" href="#__codelineno-25-42"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">dfs</span><span class="p">(</span><span class="n">i</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">order</span><span class="p">:</span><span class="w"> </span><span class="kt">String</span><span class="p">,</span><span class="w"> </span><span class="n">res</span><span class="p">:</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">Int?</span><span class="o">></span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-43" name="__codelineno-25-43" href="#__codelineno-25-43"></a><span class="w"> </span><span class="c1">// 若为空位，则返回</span>
|
||||
<a id="__codelineno-25-44" name="__codelineno-25-44" href="#__codelineno-25-44"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">value</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="kc">null</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-45" name="__codelineno-25-45" href="#__codelineno-25-45"></a><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-25-46" name="__codelineno-25-46" href="#__codelineno-25-46"></a><span class="w"> </span><span class="c1">// 前序遍历</span>
|
||||
<a id="__codelineno-25-47" name="__codelineno-25-47" href="#__codelineno-25-47"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="s">"pre"</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">order</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-48" name="__codelineno-25-48" href="#__codelineno-25-48"></a><span class="w"> </span><span class="n">res</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">value</span><span class="p">(</span><span class="n">i</span><span class="p">))</span>
|
||||
<a id="__codelineno-25-49" name="__codelineno-25-49" href="#__codelineno-25-49"></a><span class="w"> </span><span class="n">dfs</span><span class="p">(</span><span class="n">left</span><span class="p">(</span><span class="n">i</span><span class="p">),</span><span class="w"> </span><span class="n">order</span><span class="p">,</span><span class="w"> </span><span class="n">res</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-50" name="__codelineno-25-50" href="#__codelineno-25-50"></a><span class="w"> </span><span class="c1">// 中序遍历</span>
|
||||
<a id="__codelineno-25-51" name="__codelineno-25-51" href="#__codelineno-25-51"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="s">"in"</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">order</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-52" name="__codelineno-25-52" href="#__codelineno-25-52"></a><span class="w"> </span><span class="n">res</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">value</span><span class="p">(</span><span class="n">i</span><span class="p">))</span>
|
||||
<a id="__codelineno-25-53" name="__codelineno-25-53" href="#__codelineno-25-53"></a><span class="w"> </span><span class="n">dfs</span><span class="p">(</span><span class="n">right</span><span class="p">(</span><span class="n">i</span><span class="p">),</span><span class="w"> </span><span class="n">order</span><span class="p">,</span><span class="w"> </span><span class="n">res</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-54" name="__codelineno-25-54" href="#__codelineno-25-54"></a><span class="w"> </span><span class="c1">// 后序遍历</span>
|
||||
<a id="__codelineno-25-55" name="__codelineno-25-55" href="#__codelineno-25-55"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="s">"post"</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">order</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-56" name="__codelineno-25-56" href="#__codelineno-25-56"></a><span class="w"> </span><span class="n">res</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">value</span><span class="p">(</span><span class="n">i</span><span class="p">))</span>
|
||||
<a id="__codelineno-25-57" name="__codelineno-25-57" href="#__codelineno-25-57"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-58" name="__codelineno-25-58" href="#__codelineno-25-58"></a>
|
||||
<a id="__codelineno-25-59" name="__codelineno-25-59" href="#__codelineno-25-59"></a><span class="w"> </span><span class="cm">/* 前序遍历 */</span>
|
||||
<a id="__codelineno-25-60" name="__codelineno-25-60" href="#__codelineno-25-60"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">preOrder</span><span class="p">():</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">Int?</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-61" name="__codelineno-25-61" href="#__codelineno-25-61"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">res</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="kt">Int?</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-25-62" name="__codelineno-25-62" href="#__codelineno-25-62"></a><span class="w"> </span><span class="n">dfs</span><span class="p">(</span><span class="m">0</span><span class="p">,</span><span class="w"> </span><span class="s">"pre"</span><span class="p">,</span><span class="w"> </span><span class="n">res</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-63" name="__codelineno-25-63" href="#__codelineno-25-63"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">res</span>
|
||||
<a id="__codelineno-25-64" name="__codelineno-25-64" href="#__codelineno-25-64"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-65" name="__codelineno-25-65" href="#__codelineno-25-65"></a>
|
||||
<a id="__codelineno-25-66" name="__codelineno-25-66" href="#__codelineno-25-66"></a><span class="w"> </span><span class="cm">/* 中序遍历 */</span>
|
||||
<a id="__codelineno-25-67" name="__codelineno-25-67" href="#__codelineno-25-67"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">inOrder</span><span class="p">():</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">Int?</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-68" name="__codelineno-25-68" href="#__codelineno-25-68"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">res</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="kt">Int?</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-25-69" name="__codelineno-25-69" href="#__codelineno-25-69"></a><span class="w"> </span><span class="n">dfs</span><span class="p">(</span><span class="m">0</span><span class="p">,</span><span class="w"> </span><span class="s">"in"</span><span class="p">,</span><span class="w"> </span><span class="n">res</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-70" name="__codelineno-25-70" href="#__codelineno-25-70"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">res</span>
|
||||
<a id="__codelineno-25-71" name="__codelineno-25-71" href="#__codelineno-25-71"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-72" name="__codelineno-25-72" href="#__codelineno-25-72"></a>
|
||||
<a id="__codelineno-25-73" name="__codelineno-25-73" href="#__codelineno-25-73"></a><span class="w"> </span><span class="cm">/* 后序遍历 */</span>
|
||||
<a id="__codelineno-25-74" name="__codelineno-25-74" href="#__codelineno-25-74"></a><span class="w"> </span><span class="kd">fun</span><span class="w"> </span><span class="nf">postOrder</span><span class="p">():</span><span class="w"> </span><span class="n">MutableList</span><span class="o"><</span><span class="kt">Int?</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-75" name="__codelineno-25-75" href="#__codelineno-25-75"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">res</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="kt">Int?</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-25-76" name="__codelineno-25-76" href="#__codelineno-25-76"></a><span class="w"> </span><span class="n">dfs</span><span class="p">(</span><span class="m">0</span><span class="p">,</span><span class="w"> </span><span class="s">"post"</span><span class="p">,</span><span class="w"> </span><span class="n">res</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-77" name="__codelineno-25-77" href="#__codelineno-25-77"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">res</span>
|
||||
<a id="__codelineno-25-78" name="__codelineno-25-78" href="#__codelineno-25-78"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-79" name="__codelineno-25-79" href="#__codelineno-25-79"></a><span class="p">}</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
|
||||
@@ -2716,7 +2716,7 @@
|
||||
<a id="__codelineno-25-7" name="__codelineno-25-7" href="#__codelineno-25-7"></a><span class="cm">/* 更新节点高度 */</span>
|
||||
<a id="__codelineno-25-8" name="__codelineno-25-8" href="#__codelineno-25-8"></a><span class="kd">fun</span><span class="w"> </span><span class="nf">updateHeight</span><span class="p">(</span><span class="n">node</span><span class="p">:</span><span class="w"> </span><span class="n">TreeNode?)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-9" name="__codelineno-25-9" href="#__codelineno-25-9"></a><span class="w"> </span><span class="c1">// 节点高度等于最高子树高度 + 1</span>
|
||||
<a id="__codelineno-25-10" name="__codelineno-25-10" href="#__codelineno-25-10"></a><span class="w"> </span><span class="n">node</span><span class="o">?.</span><span class="na">height</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">max</span><span class="p">(</span><span class="n">height</span><span class="p">(</span><span class="n">node</span><span class="o">?.</span><span class="na">left</span><span class="p">).</span><span class="na">toDouble</span><span class="p">(),</span><span class="w"> </span><span class="n">height</span><span class="p">(</span><span class="n">node</span><span class="o">?.</span><span class="na">right</span><span class="p">).</span><span class="na">toDouble</span><span class="p">())</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="m">1</span><span class="p">).</span><span class="na">toInt</span><span class="p">()</span>
|
||||
<a id="__codelineno-25-10" name="__codelineno-25-10" href="#__codelineno-25-10"></a><span class="w"> </span><span class="n">node</span><span class="o">?.</span><span class="na">height</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">max</span><span class="p">(</span><span class="n">height</span><span class="p">(</span><span class="n">node</span><span class="o">?.</span><span class="na">left</span><span class="p">),</span><span class="w"> </span><span class="n">height</span><span class="p">(</span><span class="n">node</span><span class="o">?.</span><span class="na">right</span><span class="p">))</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="m">1</span>
|
||||
<a id="__codelineno-25-11" name="__codelineno-25-11" href="#__codelineno-25-11"></a><span class="p">}</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
@@ -4166,16 +4166,18 @@
|
||||
<a id="__codelineno-95-9" name="__codelineno-95-9" href="#__codelineno-95-9"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">TreeNode</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-95-10" name="__codelineno-95-10" href="#__codelineno-95-10"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">n</span>
|
||||
<a id="__codelineno-95-11" name="__codelineno-95-11" href="#__codelineno-95-11"></a><span class="w"> </span><span class="cm">/* 1. 查找插入位置并插入节点 */</span>
|
||||
<a id="__codelineno-95-12" name="__codelineno-95-12" href="#__codelineno-95-12"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">value</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">value</span><span class="p">)</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">insertHelper</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="p">,</span><span class="w"> </span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-95-13" name="__codelineno-95-13" href="#__codelineno-95-13"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">value</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">value</span><span class="p">)</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">insertHelper</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="p">,</span><span class="w"> </span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-95-14" name="__codelineno-95-14" href="#__codelineno-95-14"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="c1">// 重复节点不插入，直接返回</span>
|
||||
<a id="__codelineno-95-15" name="__codelineno-95-15" href="#__codelineno-95-15"></a>
|
||||
<a id="__codelineno-95-16" name="__codelineno-95-16" href="#__codelineno-95-16"></a><span class="w"> </span><span class="n">updateHeight</span><span class="p">(</span><span class="n">node</span><span class="p">)</span><span class="w"> </span><span class="c1">// 更新节点高度</span>
|
||||
<a id="__codelineno-95-17" name="__codelineno-95-17" href="#__codelineno-95-17"></a><span class="w"> </span><span class="cm">/* 2. 执行旋转操作，使该子树重新恢复平衡 */</span>
|
||||
<a id="__codelineno-95-18" name="__codelineno-95-18" href="#__codelineno-95-18"></a><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">rotate</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
||||
<a id="__codelineno-95-19" name="__codelineno-95-19" href="#__codelineno-95-19"></a><span class="w"> </span><span class="c1">// 返回子树的根节点</span>
|
||||
<a id="__codelineno-95-20" name="__codelineno-95-20" href="#__codelineno-95-20"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-95-21" name="__codelineno-95-21" href="#__codelineno-95-21"></a><span class="p">}</span>
|
||||
<a id="__codelineno-95-12" name="__codelineno-95-12" href="#__codelineno-95-12"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">value</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-95-13" name="__codelineno-95-13" href="#__codelineno-95-13"></a><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">insertHelper</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="p">,</span><span class="w"> </span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-95-14" name="__codelineno-95-14" href="#__codelineno-95-14"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">value</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-95-15" name="__codelineno-95-15" href="#__codelineno-95-15"></a><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">insertHelper</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="p">,</span><span class="w"> </span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-95-16" name="__codelineno-95-16" href="#__codelineno-95-16"></a><span class="w"> </span><span class="k">else</span>
|
||||
<a id="__codelineno-95-17" name="__codelineno-95-17" href="#__codelineno-95-17"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="c1">// 重复节点不插入，直接返回</span>
|
||||
<a id="__codelineno-95-18" name="__codelineno-95-18" href="#__codelineno-95-18"></a><span class="w"> </span><span class="n">updateHeight</span><span class="p">(</span><span class="n">node</span><span class="p">)</span><span class="w"> </span><span class="c1">// 更新节点高度</span>
|
||||
<a id="__codelineno-95-19" name="__codelineno-95-19" href="#__codelineno-95-19"></a><span class="w"> </span><span class="cm">/* 2. 执行旋转操作，使该子树重新恢复平衡 */</span>
|
||||
<a id="__codelineno-95-20" name="__codelineno-95-20" href="#__codelineno-95-20"></a><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">rotate</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
||||
<a id="__codelineno-95-21" name="__codelineno-95-21" href="#__codelineno-95-21"></a><span class="w"> </span><span class="c1">// 返回子树的根节点</span>
|
||||
<a id="__codelineno-95-22" name="__codelineno-95-22" href="#__codelineno-95-22"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-95-23" name="__codelineno-95-23" href="#__codelineno-95-23"></a><span class="p">}</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
@@ -4719,30 +4721,38 @@
|
||||
<a id="__codelineno-109-7" name="__codelineno-109-7" href="#__codelineno-109-7"></a><span class="kd">fun</span><span class="w"> </span><span class="nf">removeHelper</span><span class="p">(</span><span class="n">n</span><span class="p">:</span><span class="w"> </span><span class="n">TreeNode?,</span><span class="w"> </span><span class="n">value</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">TreeNode? </span><span class="p">{</span>
|
||||
<a id="__codelineno-109-8" name="__codelineno-109-8" href="#__codelineno-109-8"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">n</span><span class="w"> </span><span class="o">?:</span><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="kc">null</span>
|
||||
<a id="__codelineno-109-9" name="__codelineno-109-9" href="#__codelineno-109-9"></a><span class="w"> </span><span class="cm">/* 1. 查找节点并删除 */</span>
|
||||
<a id="__codelineno-109-10" name="__codelineno-109-10" href="#__codelineno-109-10"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">value</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">value</span><span class="p">)</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">removeHelper</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="p">,</span><span class="w"> </span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-109-11" name="__codelineno-109-11" href="#__codelineno-109-11"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">value</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">value</span><span class="p">)</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">removeHelper</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="p">,</span><span class="w"> </span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-109-12" name="__codelineno-109-12" href="#__codelineno-109-12"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-109-13" name="__codelineno-109-13" href="#__codelineno-109-13"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-109-14" name="__codelineno-109-14" href="#__codelineno-109-14"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">child</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">right</span>
|
||||
<a id="__codelineno-109-15" name="__codelineno-109-15" href="#__codelineno-109-15"></a><span class="w"> </span><span class="c1">// 子节点数量 = 0 ，直接删除 node 并返回</span>
|
||||
<a id="__codelineno-109-16" name="__codelineno-109-16" href="#__codelineno-109-16"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">child</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="kc">null</span>
|
||||
<a id="__codelineno-109-17" name="__codelineno-109-17" href="#__codelineno-109-17"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">child</span>
|
||||
<a id="__codelineno-109-18" name="__codelineno-109-18" href="#__codelineno-109-18"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-109-19" name="__codelineno-109-19" href="#__codelineno-109-19"></a><span class="w"> </span><span class="c1">// 子节点数量 = 2 ，则将中序遍历的下个节点删除，并用该节点替换当前节点</span>
|
||||
<a id="__codelineno-109-20" name="__codelineno-109-20" href="#__codelineno-109-20"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">temp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">right</span>
|
||||
<a id="__codelineno-109-21" name="__codelineno-109-21" href="#__codelineno-109-21"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">temp</span><span class="o">!!</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-109-22" name="__codelineno-109-22" href="#__codelineno-109-22"></a><span class="w"> </span><span class="n">temp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">temp</span><span class="p">.</span><span class="na">left</span>
|
||||
<a id="__codelineno-109-23" name="__codelineno-109-23" href="#__codelineno-109-23"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-109-24" name="__codelineno-109-24" href="#__codelineno-109-24"></a><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">removeHelper</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="p">,</span><span class="w"> </span><span class="n">temp</span><span class="p">.</span><span class="na">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-109-25" name="__codelineno-109-25" href="#__codelineno-109-25"></a><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">temp</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-109-26" name="__codelineno-109-26" href="#__codelineno-109-26"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-109-27" name="__codelineno-109-27" href="#__codelineno-109-27"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-109-28" name="__codelineno-109-28" href="#__codelineno-109-28"></a><span class="w"> </span><span class="n">updateHeight</span><span class="p">(</span><span class="n">node</span><span class="p">)</span><span class="w"> </span><span class="c1">// 更新节点高度</span>
|
||||
<a id="__codelineno-109-29" name="__codelineno-109-29" href="#__codelineno-109-29"></a><span class="w"> </span><span class="cm">/* 2. 执行旋转操作，使该子树重新恢复平衡 */</span>
|
||||
<a id="__codelineno-109-30" name="__codelineno-109-30" href="#__codelineno-109-30"></a><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">rotate</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
||||
<a id="__codelineno-109-31" name="__codelineno-109-31" href="#__codelineno-109-31"></a><span class="w"> </span><span class="c1">// 返回子树的根节点</span>
|
||||
<a id="__codelineno-109-32" name="__codelineno-109-32" href="#__codelineno-109-32"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-109-33" name="__codelineno-109-33" href="#__codelineno-109-33"></a><span class="p">}</span>
|
||||
<a id="__codelineno-109-10" name="__codelineno-109-10" href="#__codelineno-109-10"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">value</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-109-11" name="__codelineno-109-11" href="#__codelineno-109-11"></a><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">removeHelper</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="p">,</span><span class="w"> </span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-109-12" name="__codelineno-109-12" href="#__codelineno-109-12"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">value</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-109-13" name="__codelineno-109-13" href="#__codelineno-109-13"></a><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">removeHelper</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="p">,</span><span class="w"> </span><span class="n">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-109-14" name="__codelineno-109-14" href="#__codelineno-109-14"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-109-15" name="__codelineno-109-15" href="#__codelineno-109-15"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-109-16" name="__codelineno-109-16" href="#__codelineno-109-16"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">child</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span>
|
||||
<a id="__codelineno-109-17" name="__codelineno-109-17" href="#__codelineno-109-17"></a><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">left</span>
|
||||
<a id="__codelineno-109-18" name="__codelineno-109-18" href="#__codelineno-109-18"></a><span class="w"> </span><span class="k">else</span>
|
||||
<a id="__codelineno-109-19" name="__codelineno-109-19" href="#__codelineno-109-19"></a><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">right</span>
|
||||
<a id="__codelineno-109-20" name="__codelineno-109-20" href="#__codelineno-109-20"></a><span class="w"> </span><span class="c1">// 子节点数量 = 0 ，直接删除 node 并返回</span>
|
||||
<a id="__codelineno-109-21" name="__codelineno-109-21" href="#__codelineno-109-21"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">child</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span>
|
||||
<a id="__codelineno-109-22" name="__codelineno-109-22" href="#__codelineno-109-22"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="kc">null</span>
|
||||
<a id="__codelineno-109-23" name="__codelineno-109-23" href="#__codelineno-109-23"></a><span class="w"> </span><span class="c1">// 子节点数量 = 1 ，直接删除 node</span>
|
||||
<a id="__codelineno-109-24" name="__codelineno-109-24" href="#__codelineno-109-24"></a><span class="w"> </span><span class="k">else</span>
|
||||
<a id="__codelineno-109-25" name="__codelineno-109-25" href="#__codelineno-109-25"></a><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">child</span>
|
||||
<a id="__codelineno-109-26" name="__codelineno-109-26" href="#__codelineno-109-26"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-109-27" name="__codelineno-109-27" href="#__codelineno-109-27"></a><span class="w"> </span><span class="c1">// 子节点数量 = 2 ，则将中序遍历的下个节点删除，并用该节点替换当前节点</span>
|
||||
<a id="__codelineno-109-28" name="__codelineno-109-28" href="#__codelineno-109-28"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">temp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">right</span>
|
||||
<a id="__codelineno-109-29" name="__codelineno-109-29" href="#__codelineno-109-29"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">temp</span><span class="o">!!</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-109-30" name="__codelineno-109-30" href="#__codelineno-109-30"></a><span class="w"> </span><span class="n">temp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">temp</span><span class="p">.</span><span class="na">left</span>
|
||||
<a id="__codelineno-109-31" name="__codelineno-109-31" href="#__codelineno-109-31"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-109-32" name="__codelineno-109-32" href="#__codelineno-109-32"></a><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">removeHelper</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="p">,</span><span class="w"> </span><span class="n">temp</span><span class="p">.</span><span class="na">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-109-33" name="__codelineno-109-33" href="#__codelineno-109-33"></a><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="na">value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">temp</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-109-34" name="__codelineno-109-34" href="#__codelineno-109-34"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-109-35" name="__codelineno-109-35" href="#__codelineno-109-35"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-109-36" name="__codelineno-109-36" href="#__codelineno-109-36"></a><span class="w"> </span><span class="n">updateHeight</span><span class="p">(</span><span class="n">node</span><span class="p">)</span><span class="w"> </span><span class="c1">// 更新节点高度</span>
|
||||
<a id="__codelineno-109-37" name="__codelineno-109-37" href="#__codelineno-109-37"></a><span class="w"> </span><span class="cm">/* 2. 执行旋转操作，使该子树重新恢复平衡 */</span>
|
||||
<a id="__codelineno-109-38" name="__codelineno-109-38" href="#__codelineno-109-38"></a><span class="w"> </span><span class="n">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">rotate</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
||||
<a id="__codelineno-109-39" name="__codelineno-109-39" href="#__codelineno-109-39"></a><span class="w"> </span><span class="c1">// 返回子树的根节点</span>
|
||||
<a id="__codelineno-109-40" name="__codelineno-109-40" href="#__codelineno-109-40"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-109-41" name="__codelineno-109-41" href="#__codelineno-109-41"></a><span class="p">}</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
|
||||
@@ -2451,15 +2451,18 @@
|
||||
<a id="__codelineno-11-4" name="__codelineno-11-4" href="#__codelineno-11-4"></a><span class="w"> </span><span class="c1">// 循环查找，越过叶节点后跳出</span>
|
||||
<a id="__codelineno-11-5" name="__codelineno-11-5" href="#__codelineno-11-5"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-6" name="__codelineno-11-6" href="#__codelineno-11-6"></a><span class="w"> </span><span class="c1">// 目标节点在 cur 的右子树中</span>
|
||||
<a id="__codelineno-11-7" name="__codelineno-11-7" href="#__codelineno-11-7"></a><span class="w"> </span><span class="n">cur</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="p">.</span><span class="na">value</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">right</span>
|
||||
<a id="__codelineno-11-8" name="__codelineno-11-8" href="#__codelineno-11-8"></a><span class="w"> </span><span class="c1">// 目标节点在 cur 的左子树中</span>
|
||||
<a id="__codelineno-11-9" name="__codelineno-11-9" href="#__codelineno-11-9"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="p">.</span><span class="na">value</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">left</span>
|
||||
<a id="__codelineno-11-10" name="__codelineno-11-10" href="#__codelineno-11-10"></a><span class="w"> </span><span class="c1">// 找到目标节点，跳出循环</span>
|
||||
<a id="__codelineno-11-11" name="__codelineno-11-11" href="#__codelineno-11-11"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="k">break</span>
|
||||
<a id="__codelineno-11-12" name="__codelineno-11-12" href="#__codelineno-11-12"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-13" name="__codelineno-11-13" href="#__codelineno-11-13"></a><span class="w"> </span><span class="c1">// 返回目标节点</span>
|
||||
<a id="__codelineno-11-14" name="__codelineno-11-14" href="#__codelineno-11-14"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">cur</span>
|
||||
<a id="__codelineno-11-15" name="__codelineno-11-15" href="#__codelineno-11-15"></a><span class="p">}</span>
|
||||
<a id="__codelineno-11-7" name="__codelineno-11-7" href="#__codelineno-11-7"></a><span class="w"> </span><span class="n">cur</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="p">.</span><span class="na">value</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-11-8" name="__codelineno-11-8" href="#__codelineno-11-8"></a><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">right</span>
|
||||
<a id="__codelineno-11-9" name="__codelineno-11-9" href="#__codelineno-11-9"></a><span class="w"> </span><span class="c1">// 目标节点在 cur 的左子树中</span>
|
||||
<a id="__codelineno-11-10" name="__codelineno-11-10" href="#__codelineno-11-10"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="p">.</span><span class="na">value</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-11-11" name="__codelineno-11-11" href="#__codelineno-11-11"></a><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">left</span>
|
||||
<a id="__codelineno-11-12" name="__codelineno-11-12" href="#__codelineno-11-12"></a><span class="w"> </span><span class="c1">// 找到目标节点，跳出循环</span>
|
||||
<a id="__codelineno-11-13" name="__codelineno-11-13" href="#__codelineno-11-13"></a><span class="w"> </span><span class="k">else</span>
|
||||
<a id="__codelineno-11-14" name="__codelineno-11-14" href="#__codelineno-11-14"></a><span class="w"> </span><span class="k">break</span>
|
||||
<a id="__codelineno-11-15" name="__codelineno-11-15" href="#__codelineno-11-15"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-16" name="__codelineno-11-16" href="#__codelineno-11-16"></a><span class="w"> </span><span class="c1">// 返回目标节点</span>
|
||||
<a id="__codelineno-11-17" name="__codelineno-11-17" href="#__codelineno-11-17"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">cur</span>
|
||||
<a id="__codelineno-11-18" name="__codelineno-11-18" href="#__codelineno-11-18"></a><span class="p">}</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
@@ -2874,18 +2877,23 @@
|
||||
<a id="__codelineno-25-10" name="__codelineno-25-10" href="#__codelineno-25-10"></a><span class="w"> </span><span class="c1">// 循环查找，越过叶节点后跳出</span>
|
||||
<a id="__codelineno-25-11" name="__codelineno-25-11" href="#__codelineno-25-11"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-25-12" name="__codelineno-25-12" href="#__codelineno-25-12"></a><span class="w"> </span><span class="c1">// 找到重复节点，直接返回</span>
|
||||
<a id="__codelineno-25-13" name="__codelineno-25-13" href="#__codelineno-25-13"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="p">.</span><span class="na">value</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-25-14" name="__codelineno-25-14" href="#__codelineno-25-14"></a><span class="w"> </span><span class="n">pre</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">cur</span>
|
||||
<a id="__codelineno-25-15" name="__codelineno-25-15" href="#__codelineno-25-15"></a><span class="w"> </span><span class="c1">// 插入位置在 cur 的右子树中</span>
|
||||
<a id="__codelineno-25-16" name="__codelineno-25-16" href="#__codelineno-25-16"></a><span class="w"> </span><span class="n">cur</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="p">.</span><span class="na">value</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">right</span>
|
||||
<a id="__codelineno-25-17" name="__codelineno-25-17" href="#__codelineno-25-17"></a><span class="w"> </span><span class="c1">// 插入位置在 cur 的左子树中</span>
|
||||
<a id="__codelineno-25-18" name="__codelineno-25-18" href="#__codelineno-25-18"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">left</span>
|
||||
<a id="__codelineno-25-19" name="__codelineno-25-19" href="#__codelineno-25-19"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-20" name="__codelineno-25-20" href="#__codelineno-25-20"></a><span class="w"> </span><span class="c1">// 插入节点</span>
|
||||
<a id="__codelineno-25-21" name="__codelineno-25-21" href="#__codelineno-25-21"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">TreeNode</span><span class="p">(</span><span class="n">num</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-22" name="__codelineno-25-22" href="#__codelineno-25-22"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pre</span><span class="o">?.</span><span class="na">value</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><span class="w"> </span><span class="n">pre</span><span class="p">.</span><span class="na">right</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-25-23" name="__codelineno-25-23" href="#__codelineno-25-23"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="n">pre</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-25-24" name="__codelineno-25-24" href="#__codelineno-25-24"></a><span class="p">}</span>
|
||||
<a id="__codelineno-25-13" name="__codelineno-25-13" href="#__codelineno-25-13"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="p">.</span><span class="na">value</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-25-14" name="__codelineno-25-14" href="#__codelineno-25-14"></a><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-25-15" name="__codelineno-25-15" href="#__codelineno-25-15"></a><span class="w"> </span><span class="n">pre</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">cur</span>
|
||||
<a id="__codelineno-25-16" name="__codelineno-25-16" href="#__codelineno-25-16"></a><span class="w"> </span><span class="c1">// 插入位置在 cur 的右子树中</span>
|
||||
<a id="__codelineno-25-17" name="__codelineno-25-17" href="#__codelineno-25-17"></a><span class="w"> </span><span class="n">cur</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="p">.</span><span class="na">value</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-25-18" name="__codelineno-25-18" href="#__codelineno-25-18"></a><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">right</span>
|
||||
<a id="__codelineno-25-19" name="__codelineno-25-19" href="#__codelineno-25-19"></a><span class="w"> </span><span class="c1">// 插入位置在 cur 的左子树中</span>
|
||||
<a id="__codelineno-25-20" name="__codelineno-25-20" href="#__codelineno-25-20"></a><span class="w"> </span><span class="k">else</span>
|
||||
<a id="__codelineno-25-21" name="__codelineno-25-21" href="#__codelineno-25-21"></a><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">left</span>
|
||||
<a id="__codelineno-25-22" name="__codelineno-25-22" href="#__codelineno-25-22"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-25-23" name="__codelineno-25-23" href="#__codelineno-25-23"></a><span class="w"> </span><span class="c1">// 插入节点</span>
|
||||
<a id="__codelineno-25-24" name="__codelineno-25-24" href="#__codelineno-25-24"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">TreeNode</span><span class="p">(</span><span class="n">num</span><span class="p">)</span>
|
||||
<a id="__codelineno-25-25" name="__codelineno-25-25" href="#__codelineno-25-25"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pre</span><span class="o">?.</span><span class="na">value</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-25-26" name="__codelineno-25-26" href="#__codelineno-25-26"></a><span class="w"> </span><span class="n">pre</span><span class="p">.</span><span class="na">right</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-25-27" name="__codelineno-25-27" href="#__codelineno-25-27"></a><span class="w"> </span><span class="k">else</span>
|
||||
<a id="__codelineno-25-28" name="__codelineno-25-28" href="#__codelineno-25-28"></a><span class="w"> </span><span class="n">pre</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span>
|
||||
<a id="__codelineno-25-29" name="__codelineno-25-29" href="#__codelineno-25-29"></a><span class="p">}</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
@@ -3579,46 +3587,56 @@
|
||||
<div class="highlight"><span class="filename">binary_search_tree.kt</span><pre><span></span><code><a id="__codelineno-39-1" name="__codelineno-39-1" href="#__codelineno-39-1"></a><span class="cm">/* 删除节点 */</span>
|
||||
<a id="__codelineno-39-2" name="__codelineno-39-2" href="#__codelineno-39-2"></a><span class="kd">fun</span><span class="w"> </span><span class="nf">remove</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-39-3" name="__codelineno-39-3" href="#__codelineno-39-3"></a><span class="w"> </span><span class="c1">// 若树为空，直接提前返回</span>
|
||||
<a id="__codelineno-39-4" name="__codelineno-39-4" href="#__codelineno-39-4"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">root</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-39-5" name="__codelineno-39-5" href="#__codelineno-39-5"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">cur</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">root</span>
|
||||
<a id="__codelineno-39-6" name="__codelineno-39-6" href="#__codelineno-39-6"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">pre</span><span class="p">:</span><span class="w"> </span><span class="n">TreeNode? </span><span class="o">=</span><span class="w"> </span><span class="kc">null</span>
|
||||
<a id="__codelineno-39-7" name="__codelineno-39-7" href="#__codelineno-39-7"></a><span class="w"> </span><span class="c1">// 循环查找，越过叶节点后跳出</span>
|
||||
<a id="__codelineno-39-8" name="__codelineno-39-8" href="#__codelineno-39-8"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-39-9" name="__codelineno-39-9" href="#__codelineno-39-9"></a><span class="w"> </span><span class="c1">// 找到待删除节点，跳出循环</span>
|
||||
<a id="__codelineno-39-10" name="__codelineno-39-10" href="#__codelineno-39-10"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="p">.</span><span class="na">value</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="k">break</span>
|
||||
<a id="__codelineno-39-11" name="__codelineno-39-11" href="#__codelineno-39-11"></a><span class="w"> </span><span class="n">pre</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">cur</span>
|
||||
<a id="__codelineno-39-12" name="__codelineno-39-12" href="#__codelineno-39-12"></a><span class="w"> </span><span class="c1">// 待删除节点在 cur 的右子树中</span>
|
||||
<a id="__codelineno-39-13" name="__codelineno-39-13" href="#__codelineno-39-13"></a><span class="w"> </span><span class="n">cur</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="p">.</span><span class="na">value</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">right</span>
|
||||
<a id="__codelineno-39-14" name="__codelineno-39-14" href="#__codelineno-39-14"></a><span class="w"> </span><span class="c1">// 待删除节点在 cur 的左子树中</span>
|
||||
<a id="__codelineno-39-15" name="__codelineno-39-15" href="#__codelineno-39-15"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">left</span>
|
||||
<a id="__codelineno-39-16" name="__codelineno-39-16" href="#__codelineno-39-16"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-39-17" name="__codelineno-39-17" href="#__codelineno-39-17"></a><span class="w"> </span><span class="c1">// 若无待删除节点，则直接返回</span>
|
||||
<a id="__codelineno-39-18" name="__codelineno-39-18" href="#__codelineno-39-18"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-39-19" name="__codelineno-39-19" href="#__codelineno-39-19"></a><span class="w"> </span><span class="c1">// 子节点数量 = 0 or 1</span>
|
||||
<a id="__codelineno-39-20" name="__codelineno-39-20" href="#__codelineno-39-20"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">right</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-39-21" name="__codelineno-39-21" href="#__codelineno-39-21"></a><span class="w"> </span><span class="c1">// 当子节点数量 = 0 / 1 时， child = null / 该子节点</span>
|
||||
<a id="__codelineno-39-22" name="__codelineno-39-22" href="#__codelineno-39-22"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">child</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">right</span>
|
||||
<a id="__codelineno-39-23" name="__codelineno-39-23" href="#__codelineno-39-23"></a><span class="w"> </span><span class="c1">// 删除节点 cur</span>
|
||||
<a id="__codelineno-39-24" name="__codelineno-39-24" href="#__codelineno-39-24"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="n">root</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-39-25" name="__codelineno-39-25" href="#__codelineno-39-25"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pre</span><span class="o">!!</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">cur</span><span class="p">)</span><span class="w"> </span><span class="n">pre</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">child</span>
|
||||
<a id="__codelineno-39-26" name="__codelineno-39-26" href="#__codelineno-39-26"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="n">pre</span><span class="p">.</span><span class="na">right</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">child</span>
|
||||
<a id="__codelineno-39-27" name="__codelineno-39-27" href="#__codelineno-39-27"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-39-28" name="__codelineno-39-28" href="#__codelineno-39-28"></a><span class="w"> </span><span class="c1">// 若删除节点为根节点，则重新指定根节点</span>
|
||||
<a id="__codelineno-39-29" name="__codelineno-39-29" href="#__codelineno-39-29"></a><span class="w"> </span><span class="n">root</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">child</span>
|
||||
<a id="__codelineno-39-30" name="__codelineno-39-30" href="#__codelineno-39-30"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-39-31" name="__codelineno-39-31" href="#__codelineno-39-31"></a><span class="w"> </span><span class="c1">// 子节点数量 = 2</span>
|
||||
<a id="__codelineno-39-32" name="__codelineno-39-32" href="#__codelineno-39-32"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-39-33" name="__codelineno-39-33" href="#__codelineno-39-33"></a><span class="w"> </span><span class="c1">// 获取中序遍历中 cur 的下一个节点</span>
|
||||
<a id="__codelineno-39-34" name="__codelineno-39-34" href="#__codelineno-39-34"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">tmp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">right</span>
|
||||
<a id="__codelineno-39-35" name="__codelineno-39-35" href="#__codelineno-39-35"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">tmp</span><span class="o">!!</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-39-36" name="__codelineno-39-36" href="#__codelineno-39-36"></a><span class="w"> </span><span class="n">tmp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">tmp</span><span class="p">.</span><span class="na">left</span>
|
||||
<a id="__codelineno-39-37" name="__codelineno-39-37" href="#__codelineno-39-37"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-39-38" name="__codelineno-39-38" href="#__codelineno-39-38"></a><span class="w"> </span><span class="c1">// 递归删除节点 tmp</span>
|
||||
<a id="__codelineno-39-39" name="__codelineno-39-39" href="#__codelineno-39-39"></a><span class="w"> </span><span class="n">remove</span><span class="p">(</span><span class="n">tmp</span><span class="p">.</span><span class="na">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-39-40" name="__codelineno-39-40" href="#__codelineno-39-40"></a><span class="w"> </span><span class="c1">// 用 tmp 覆盖 cur</span>
|
||||
<a id="__codelineno-39-41" name="__codelineno-39-41" href="#__codelineno-39-41"></a><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">tmp</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-39-42" name="__codelineno-39-42" href="#__codelineno-39-42"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-39-43" name="__codelineno-39-43" href="#__codelineno-39-43"></a><span class="p">}</span>
|
||||
<a id="__codelineno-39-4" name="__codelineno-39-4" href="#__codelineno-39-4"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">root</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span>
|
||||
<a id="__codelineno-39-5" name="__codelineno-39-5" href="#__codelineno-39-5"></a><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-39-6" name="__codelineno-39-6" href="#__codelineno-39-6"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">cur</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">root</span>
|
||||
<a id="__codelineno-39-7" name="__codelineno-39-7" href="#__codelineno-39-7"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">pre</span><span class="p">:</span><span class="w"> </span><span class="n">TreeNode? </span><span class="o">=</span><span class="w"> </span><span class="kc">null</span>
|
||||
<a id="__codelineno-39-8" name="__codelineno-39-8" href="#__codelineno-39-8"></a><span class="w"> </span><span class="c1">// 循环查找，越过叶节点后跳出</span>
|
||||
<a id="__codelineno-39-9" name="__codelineno-39-9" href="#__codelineno-39-9"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-39-10" name="__codelineno-39-10" href="#__codelineno-39-10"></a><span class="w"> </span><span class="c1">// 找到待删除节点，跳出循环</span>
|
||||
<a id="__codelineno-39-11" name="__codelineno-39-11" href="#__codelineno-39-11"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="p">.</span><span class="na">value</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-39-12" name="__codelineno-39-12" href="#__codelineno-39-12"></a><span class="w"> </span><span class="k">break</span>
|
||||
<a id="__codelineno-39-13" name="__codelineno-39-13" href="#__codelineno-39-13"></a><span class="w"> </span><span class="n">pre</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">cur</span>
|
||||
<a id="__codelineno-39-14" name="__codelineno-39-14" href="#__codelineno-39-14"></a><span class="w"> </span><span class="c1">// 待删除节点在 cur 的右子树中</span>
|
||||
<a id="__codelineno-39-15" name="__codelineno-39-15" href="#__codelineno-39-15"></a><span class="w"> </span><span class="n">cur</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="p">.</span><span class="na">value</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-39-16" name="__codelineno-39-16" href="#__codelineno-39-16"></a><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">right</span>
|
||||
<a id="__codelineno-39-17" name="__codelineno-39-17" href="#__codelineno-39-17"></a><span class="w"> </span><span class="c1">// 待删除节点在 cur 的左子树中</span>
|
||||
<a id="__codelineno-39-18" name="__codelineno-39-18" href="#__codelineno-39-18"></a><span class="w"> </span><span class="k">else</span>
|
||||
<a id="__codelineno-39-19" name="__codelineno-39-19" href="#__codelineno-39-19"></a><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">left</span>
|
||||
<a id="__codelineno-39-20" name="__codelineno-39-20" href="#__codelineno-39-20"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-39-21" name="__codelineno-39-21" href="#__codelineno-39-21"></a><span class="w"> </span><span class="c1">// 若无待删除节点，则直接返回</span>
|
||||
<a id="__codelineno-39-22" name="__codelineno-39-22" href="#__codelineno-39-22"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span>
|
||||
<a id="__codelineno-39-23" name="__codelineno-39-23" href="#__codelineno-39-23"></a><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-39-24" name="__codelineno-39-24" href="#__codelineno-39-24"></a><span class="w"> </span><span class="c1">// 子节点数量 = 0 or 1</span>
|
||||
<a id="__codelineno-39-25" name="__codelineno-39-25" href="#__codelineno-39-25"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">right</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-39-26" name="__codelineno-39-26" href="#__codelineno-39-26"></a><span class="w"> </span><span class="c1">// 当子节点数量 = 0 / 1 时， child = null / 该子节点</span>
|
||||
<a id="__codelineno-39-27" name="__codelineno-39-27" href="#__codelineno-39-27"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">child</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span>
|
||||
<a id="__codelineno-39-28" name="__codelineno-39-28" href="#__codelineno-39-28"></a><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">left</span>
|
||||
<a id="__codelineno-39-29" name="__codelineno-39-29" href="#__codelineno-39-29"></a><span class="w"> </span><span class="k">else</span>
|
||||
<a id="__codelineno-39-30" name="__codelineno-39-30" href="#__codelineno-39-30"></a><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">right</span>
|
||||
<a id="__codelineno-39-31" name="__codelineno-39-31" href="#__codelineno-39-31"></a><span class="w"> </span><span class="c1">// 删除节点 cur</span>
|
||||
<a id="__codelineno-39-32" name="__codelineno-39-32" href="#__codelineno-39-32"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">cur</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="n">root</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-39-33" name="__codelineno-39-33" href="#__codelineno-39-33"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">pre</span><span class="o">!!</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">cur</span><span class="p">)</span>
|
||||
<a id="__codelineno-39-34" name="__codelineno-39-34" href="#__codelineno-39-34"></a><span class="w"> </span><span class="n">pre</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">child</span>
|
||||
<a id="__codelineno-39-35" name="__codelineno-39-35" href="#__codelineno-39-35"></a><span class="w"> </span><span class="k">else</span>
|
||||
<a id="__codelineno-39-36" name="__codelineno-39-36" href="#__codelineno-39-36"></a><span class="w"> </span><span class="n">pre</span><span class="p">.</span><span class="na">right</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">child</span>
|
||||
<a id="__codelineno-39-37" name="__codelineno-39-37" href="#__codelineno-39-37"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-39-38" name="__codelineno-39-38" href="#__codelineno-39-38"></a><span class="w"> </span><span class="c1">// 若删除节点为根节点，则重新指定根节点</span>
|
||||
<a id="__codelineno-39-39" name="__codelineno-39-39" href="#__codelineno-39-39"></a><span class="w"> </span><span class="n">root</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">child</span>
|
||||
<a id="__codelineno-39-40" name="__codelineno-39-40" href="#__codelineno-39-40"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-39-41" name="__codelineno-39-41" href="#__codelineno-39-41"></a><span class="w"> </span><span class="c1">// 子节点数量 = 2</span>
|
||||
<a id="__codelineno-39-42" name="__codelineno-39-42" href="#__codelineno-39-42"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-39-43" name="__codelineno-39-43" href="#__codelineno-39-43"></a><span class="w"> </span><span class="c1">// 获取中序遍历中 cur 的下一个节点</span>
|
||||
<a id="__codelineno-39-44" name="__codelineno-39-44" href="#__codelineno-39-44"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="nv">tmp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">right</span>
|
||||
<a id="__codelineno-39-45" name="__codelineno-39-45" href="#__codelineno-39-45"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">tmp</span><span class="o">!!</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-39-46" name="__codelineno-39-46" href="#__codelineno-39-46"></a><span class="w"> </span><span class="n">tmp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">tmp</span><span class="p">.</span><span class="na">left</span>
|
||||
<a id="__codelineno-39-47" name="__codelineno-39-47" href="#__codelineno-39-47"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-39-48" name="__codelineno-39-48" href="#__codelineno-39-48"></a><span class="w"> </span><span class="c1">// 递归删除节点 tmp</span>
|
||||
<a id="__codelineno-39-49" name="__codelineno-39-49" href="#__codelineno-39-49"></a><span class="w"> </span><span class="n">remove</span><span class="p">(</span><span class="n">tmp</span><span class="p">.</span><span class="na">value</span><span class="p">)</span>
|
||||
<a id="__codelineno-39-50" name="__codelineno-39-50" href="#__codelineno-39-50"></a><span class="w"> </span><span class="c1">// 用 tmp 覆盖 cur</span>
|
||||
<a id="__codelineno-39-51" name="__codelineno-39-51" href="#__codelineno-39-51"></a><span class="w"> </span><span class="n">cur</span><span class="p">.</span><span class="na">value</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">tmp</span><span class="p">.</span><span class="na">value</span>
|
||||
<a id="__codelineno-39-52" name="__codelineno-39-52" href="#__codelineno-39-52"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-39-53" name="__codelineno-39-53" href="#__codelineno-39-53"></a><span class="p">}</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
|
||||
@@ -2372,7 +2372,7 @@
|
||||
<a id="__codelineno-9-2" name="__codelineno-9-2" href="#__codelineno-9-2"></a><span class="k">fn</span> <span class="nf">level_order</span><span class="p">(</span><span class="n">root</span>: <span class="kp">&</span><span class="nc">Rc</span><span class="o"><</span><span class="n">RefCell</span><span class="o"><</span><span class="n">TreeNode</span><span class="o">>></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-9-3" name="__codelineno-9-3" href="#__codelineno-9-3"></a><span class="w"> </span><span class="c1">// 初始化队列，加入根节点</span>
|
||||
<a id="__codelineno-9-4" name="__codelineno-9-4" href="#__codelineno-9-4"></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">que</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">VecDeque</span>::<span class="n">new</span><span class="p">();</span>
|
||||
<a id="__codelineno-9-5" name="__codelineno-9-5" href="#__codelineno-9-5"></a><span class="w"> </span><span class="n">que</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">Rc</span>::<span class="n">clone</span><span class="p">(</span><span class="o">&</span><span class="n">root</span><span class="p">));</span>
|
||||
<a id="__codelineno-9-5" name="__codelineno-9-5" href="#__codelineno-9-5"></a><span class="w"> </span><span class="n">que</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">root</span><span class="p">.</span><span class="n">clone</span><span class="p">());</span>
|
||||
<a id="__codelineno-9-6" name="__codelineno-9-6" href="#__codelineno-9-6"></a><span class="w"> </span><span class="c1">// 初始化一个列表，用于保存遍历序列</span>
|
||||
<a id="__codelineno-9-7" name="__codelineno-9-7" href="#__codelineno-9-7"></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="nb">Vec</span>::<span class="n">new</span><span class="p">();</span>
|
||||
<a id="__codelineno-9-8" name="__codelineno-9-8" href="#__codelineno-9-8"></a>
|
||||
@@ -2380,10 +2380,10 @@
|
||||
<a id="__codelineno-9-10" name="__codelineno-9-10" href="#__codelineno-9-10"></a><span class="w"> </span><span class="c1">// 队列出队</span>
|
||||
<a id="__codelineno-9-11" name="__codelineno-9-11" href="#__codelineno-9-11"></a><span class="w"> </span><span class="n">vec</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">val</span><span class="p">);</span><span class="w"> </span><span class="c1">// 保存节点值</span>
|
||||
<a id="__codelineno-9-12" name="__codelineno-9-12" href="#__codelineno-9-12"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nb">Some</span><span class="p">(</span><span class="n">left</span><span class="p">)</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">left</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-9-13" name="__codelineno-9-13" href="#__codelineno-9-13"></a><span class="w"> </span><span class="n">que</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">Rc</span>::<span class="n">clone</span><span class="p">(</span><span class="n">left</span><span class="p">));</span><span class="w"> </span><span class="c1">// 左子节点入队</span>
|
||||
<a id="__codelineno-9-13" name="__codelineno-9-13" href="#__codelineno-9-13"></a><span class="w"> </span><span class="n">que</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">left</span><span class="p">.</span><span class="n">clone</span><span class="p">());</span><span class="w"> </span><span class="c1">// 左子节点入队</span>
|
||||
<a id="__codelineno-9-14" name="__codelineno-9-14" href="#__codelineno-9-14"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-9-15" name="__codelineno-9-15" href="#__codelineno-9-15"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nb">Some</span><span class="p">(</span><span class="n">right</span><span class="p">)</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">right</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-9-16" name="__codelineno-9-16" href="#__codelineno-9-16"></a><span class="w"> </span><span class="n">que</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">Rc</span>::<span class="n">clone</span><span class="p">(</span><span class="n">right</span><span class="p">));</span><span class="w"> </span><span class="c1">// 右子节点入队</span>
|
||||
<a id="__codelineno-9-16" name="__codelineno-9-16" href="#__codelineno-9-16"></a><span class="w"> </span><span class="n">que</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="n">right</span><span class="p">.</span><span class="n">clone</span><span class="p">());</span><span class="w"> </span><span class="c1">// 右子节点入队</span>
|
||||
<a id="__codelineno-9-17" name="__codelineno-9-17" href="#__codelineno-9-17"></a><span class="w"> </span><span class="p">};</span>
|
||||
<a id="__codelineno-9-18" name="__codelineno-9-18" href="#__codelineno-9-18"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-9-19" name="__codelineno-9-19" href="#__codelineno-9-19"></a><span class="w"> </span><span class="n">vec</span>
|
||||
@@ -2441,16 +2441,17 @@
|
||||
<a id="__codelineno-11-4" name="__codelineno-11-4" href="#__codelineno-11-4"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">queue</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">LinkedList</span><span class="o"><</span><span class="n">TreeNode?></span><span class="p">()</span>
|
||||
<a id="__codelineno-11-5" name="__codelineno-11-5" href="#__codelineno-11-5"></a><span class="w"> </span><span class="n">queue</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">root</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-6" name="__codelineno-11-6" href="#__codelineno-11-6"></a><span class="w"> </span><span class="c1">// 初始化一个列表，用于保存遍历序列</span>
|
||||
<a id="__codelineno-11-7" name="__codelineno-11-7" href="#__codelineno-11-7"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">list</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-11-8" name="__codelineno-11-8" href="#__codelineno-11-8"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="o">!</span><span class="n">queue</span><span class="p">.</span><span class="na">isEmpty</span><span class="p">())</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-9" name="__codelineno-11-9" href="#__codelineno-11-9"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">queue</span><span class="p">.</span><span class="na">poll</span><span class="p">()</span><span class="w"> </span><span class="c1">// 队列出队</span>
|
||||
<a id="__codelineno-11-10" name="__codelineno-11-10" href="#__codelineno-11-10"></a><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">node</span><span class="o">?.</span><span class="na">value</span><span class="o">!!</span><span class="p">)</span><span class="w"> </span><span class="c1">// 保存节点值</span>
|
||||
<a id="__codelineno-11-11" name="__codelineno-11-11" href="#__codelineno-11-11"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="n">queue</span><span class="p">.</span><span class="na">offer</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="p">)</span><span class="w"> </span><span class="c1">// 左子节点入队</span>
|
||||
<a id="__codelineno-11-12" name="__codelineno-11-12" href="#__codelineno-11-12"></a>
|
||||
<a id="__codelineno-11-13" name="__codelineno-11-13" href="#__codelineno-11-13"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="n">queue</span><span class="p">.</span><span class="na">offer</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="p">)</span><span class="w"> </span><span class="c1">// 右子节点入队</span>
|
||||
<a id="__codelineno-11-14" name="__codelineno-11-14" href="#__codelineno-11-14"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-15" name="__codelineno-11-15" href="#__codelineno-11-15"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">list</span>
|
||||
<a id="__codelineno-11-16" name="__codelineno-11-16" href="#__codelineno-11-16"></a><span class="p">}</span>
|
||||
<a id="__codelineno-11-7" name="__codelineno-11-7" href="#__codelineno-11-7"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">list</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">mutableListOf</span><span class="o"><</span><span class="kt">Int</span><span class="o">></span><span class="p">()</span>
|
||||
<a id="__codelineno-11-8" name="__codelineno-11-8" href="#__codelineno-11-8"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">queue</span><span class="p">.</span><span class="na">isNotEmpty</span><span class="p">())</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-11-9" name="__codelineno-11-9" href="#__codelineno-11-9"></a><span class="w"> </span><span class="kd">val</span><span class="w"> </span><span class="nv">node</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">queue</span><span class="p">.</span><span class="na">poll</span><span class="p">()</span><span class="w"> </span><span class="c1">// 队列出队</span>
|
||||
<a id="__codelineno-11-10" name="__codelineno-11-10" href="#__codelineno-11-10"></a><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="n">node</span><span class="o">?.</span><span class="na">value</span><span class="o">!!</span><span class="p">)</span><span class="w"> </span><span class="c1">// 保存节点值</span>
|
||||
<a id="__codelineno-11-11" name="__codelineno-11-11" href="#__codelineno-11-11"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-12" name="__codelineno-11-12" href="#__codelineno-11-12"></a><span class="w"> </span><span class="n">queue</span><span class="p">.</span><span class="na">offer</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">left</span><span class="p">)</span><span class="w"> </span><span class="c1">// 左子节点入队</span>
|
||||
<a id="__codelineno-11-13" name="__codelineno-11-13" href="#__codelineno-11-13"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span>
|
||||
<a id="__codelineno-11-14" name="__codelineno-11-14" href="#__codelineno-11-14"></a><span class="w"> </span><span class="n">queue</span><span class="p">.</span><span class="na">offer</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="na">right</span><span class="p">)</span><span class="w"> </span><span class="c1">// 右子节点入队</span>
|
||||
<a id="__codelineno-11-15" name="__codelineno-11-15" href="#__codelineno-11-15"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-11-16" name="__codelineno-11-16" href="#__codelineno-11-16"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">list</span>
|
||||
<a id="__codelineno-11-17" name="__codelineno-11-17" href="#__codelineno-11-17"></a><span class="p">}</span>
|
||||
</code></pre></div>
|
||||
</div>
|
||||
<div class="tabbed-block">
|
||||
@@ -2802,8 +2803,8 @@
|
||||
<a id="__codelineno-23-5" name="__codelineno-23-5" href="#__codelineno-23-5"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nb">Some</span><span class="p">(</span><span class="n">node</span><span class="p">)</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">root</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-23-6" name="__codelineno-23-6" href="#__codelineno-23-6"></a><span class="w"> </span><span class="c1">// 访问优先级：根节点 -> 左子树 -> 右子树</span>
|
||||
<a id="__codelineno-23-7" name="__codelineno-23-7" href="#__codelineno-23-7"></a><span class="w"> </span><span class="n">result</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">val</span><span class="p">);</span>
|
||||
<a id="__codelineno-23-8" name="__codelineno-23-8" href="#__codelineno-23-8"></a><span class="w"> </span><span class="n">result</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="n">pre_order</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">left</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()));</span>
|
||||
<a id="__codelineno-23-9" name="__codelineno-23-9" href="#__codelineno-23-9"></a><span class="w"> </span><span class="n">result</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="n">pre_order</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">right</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()));</span>
|
||||
<a id="__codelineno-23-8" name="__codelineno-23-8" href="#__codelineno-23-8"></a><span class="w"> </span><span class="n">result</span><span class="p">.</span><span class="n">extend</span><span class="p">(</span><span class="n">pre_order</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">left</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()));</span>
|
||||
<a id="__codelineno-23-9" name="__codelineno-23-9" href="#__codelineno-23-9"></a><span class="w"> </span><span class="n">result</span><span class="p">.</span><span class="n">extend</span><span class="p">(</span><span class="n">pre_order</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">right</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()));</span>
|
||||
<a id="__codelineno-23-10" name="__codelineno-23-10" href="#__codelineno-23-10"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-23-11" name="__codelineno-23-11" href="#__codelineno-23-11"></a><span class="w"> </span><span class="n">result</span>
|
||||
<a id="__codelineno-23-12" name="__codelineno-23-12" href="#__codelineno-23-12"></a><span class="p">}</span>
|
||||
@@ -2814,9 +2815,9 @@
|
||||
<a id="__codelineno-23-17" name="__codelineno-23-17" href="#__codelineno-23-17"></a>
|
||||
<a id="__codelineno-23-18" name="__codelineno-23-18" href="#__codelineno-23-18"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nb">Some</span><span class="p">(</span><span class="n">node</span><span class="p">)</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">root</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-23-19" name="__codelineno-23-19" href="#__codelineno-23-19"></a><span class="w"> </span><span class="c1">// 访问优先级：左子树 -> 根节点 -> 右子树</span>
|
||||
<a id="__codelineno-23-20" name="__codelineno-23-20" href="#__codelineno-23-20"></a><span class="w"> </span><span class="n">result</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="n">in_order</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">left</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()));</span>
|
||||
<a id="__codelineno-23-20" name="__codelineno-23-20" href="#__codelineno-23-20"></a><span class="w"> </span><span class="n">result</span><span class="p">.</span><span class="n">extend</span><span class="p">(</span><span class="n">in_order</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">left</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()));</span>
|
||||
<a id="__codelineno-23-21" name="__codelineno-23-21" href="#__codelineno-23-21"></a><span class="w"> </span><span class="n">result</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">val</span><span class="p">);</span>
|
||||
<a id="__codelineno-23-22" name="__codelineno-23-22" href="#__codelineno-23-22"></a><span class="w"> </span><span class="n">result</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="n">in_order</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">right</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()));</span>
|
||||
<a id="__codelineno-23-22" name="__codelineno-23-22" href="#__codelineno-23-22"></a><span class="w"> </span><span class="n">result</span><span class="p">.</span><span class="n">extend</span><span class="p">(</span><span class="n">in_order</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">right</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()));</span>
|
||||
<a id="__codelineno-23-23" name="__codelineno-23-23" href="#__codelineno-23-23"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-23-24" name="__codelineno-23-24" href="#__codelineno-23-24"></a><span class="w"> </span><span class="n">result</span>
|
||||
<a id="__codelineno-23-25" name="__codelineno-23-25" href="#__codelineno-23-25"></a><span class="p">}</span>
|
||||
@@ -2827,8 +2828,8 @@
|
||||
<a id="__codelineno-23-30" name="__codelineno-23-30" href="#__codelineno-23-30"></a>
|
||||
<a id="__codelineno-23-31" name="__codelineno-23-31" href="#__codelineno-23-31"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nb">Some</span><span class="p">(</span><span class="n">node</span><span class="p">)</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">root</span><span class="w"> </span><span class="p">{</span>
|
||||
<a id="__codelineno-23-32" name="__codelineno-23-32" href="#__codelineno-23-32"></a><span class="w"> </span><span class="c1">// 访问优先级：左子树 -> 右子树 -> 根节点</span>
|
||||
<a id="__codelineno-23-33" name="__codelineno-23-33" href="#__codelineno-23-33"></a><span class="w"> </span><span class="n">result</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="n">post_order</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">left</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()));</span>
|
||||
<a id="__codelineno-23-34" name="__codelineno-23-34" href="#__codelineno-23-34"></a><span class="w"> </span><span class="n">result</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="n">post_order</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">right</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()));</span>
|
||||
<a id="__codelineno-23-33" name="__codelineno-23-33" href="#__codelineno-23-33"></a><span class="w"> </span><span class="n">result</span><span class="p">.</span><span class="n">extend</span><span class="p">(</span><span class="n">post_order</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">left</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()));</span>
|
||||
<a id="__codelineno-23-34" name="__codelineno-23-34" href="#__codelineno-23-34"></a><span class="w"> </span><span class="n">result</span><span class="p">.</span><span class="n">extend</span><span class="p">(</span><span class="n">post_order</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">right</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()));</span>
|
||||
<a id="__codelineno-23-35" name="__codelineno-23-35" href="#__codelineno-23-35"></a><span class="w"> </span><span class="n">result</span><span class="p">.</span><span class="n">push</span><span class="p">(</span><span class="n">node</span><span class="p">.</span><span class="n">borrow</span><span class="p">().</span><span class="n">val</span><span class="p">);</span>
|
||||
<a id="__codelineno-23-36" name="__codelineno-23-36" href="#__codelineno-23-36"></a><span class="w"> </span><span class="p">}</span>
|
||||
<a id="__codelineno-23-37" name="__codelineno-23-37" href="#__codelineno-23-37"></a><span class="w"> </span><span class="n">result</span>
|
||||
|
||||
File diff suppressed because one or more lines are too long
+54
-54
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||||
<loc>https://www.hello-algo.com/en/chapter_graph/graph_traversal/</loc>
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||||
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||||
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|
||||
<changefreq>daily</changefreq>
|
||||
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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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|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_hashing/</loc>
|
||||
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||||
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||||
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|
||||
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|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_hashing/hash_algorithm/</loc>
|
||||
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|
||||
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|
||||
<changefreq>daily</changefreq>
|
||||
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|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_hashing/hash_collision/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
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||||
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|
||||
<changefreq>daily</changefreq>
|
||||
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|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_hashing/hash_map/</loc>
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||||
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||||
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|
||||
<changefreq>daily</changefreq>
|
||||
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|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_hashing/summary/</loc>
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||||
<lastmod>2024-04-06</lastmod>
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||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_heap/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
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|
||||
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|
||||
<loc>https://www.hello-algo.com/en/chapter_heap/build_heap/</loc>
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||||
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|
||||
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|
||||
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|
||||
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|
||||
<loc>https://www.hello-algo.com/en/chapter_heap/heap/</loc>
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||||
<lastmod>2024-04-06</lastmod>
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||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_heap/summary/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
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||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
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|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_heap/top_k/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
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|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_introduction/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
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|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_introduction/algorithms_are_everywhere/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
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|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_introduction/summary/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
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|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_introduction/what_is_dsa/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
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|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_preface/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
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|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_preface/about_the_book/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
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|
||||
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|
||||
<loc>https://www.hello-algo.com/en/chapter_preface/suggestions/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
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||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
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|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_preface/summary/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_stack_and_queue/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
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|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_stack_and_queue/deque/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_stack_and_queue/queue/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_stack_and_queue/stack/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_stack_and_queue/summary/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_tree/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_tree/array_representation_of_tree/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_tree/avl_tree/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_tree/binary_search_tree/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_tree/binary_tree/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_tree/binary_tree_traversal/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://www.hello-algo.com/en/chapter_tree/summary/</loc>
|
||||
<lastmod>2024-04-06</lastmod>
|
||||
<lastmod>2024-04-09</lastmod>
|
||||
<changefreq>daily</changefreq>
|
||||
</url>
|
||||
</urlset>
|
||||
Binary file not shown.
@@ -519,13 +519,6 @@ a:hover .text-button span {
|
||||
.text-button {
|
||||
margin: 0.7em auto;
|
||||
}
|
||||
|
||||
.profile-div {
|
||||
max-width: 30em;
|
||||
}
|
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|
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flex-basis: 25%;
|
||||
}
|
||||
}
|
||||
|
||||
.video-container {
|
||||
|
||||
Reference in New Issue
Block a user