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@@ -116,7 +116,7 @@
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<path
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d="M480 32c0-12.9-7.8-24.6-19.8-29.6s-25.7-2.2-34.9 6.9L381.7 53c-48 48-113.1 75-181 75H192 160 64c-35.3 0-64 28.7-64 64v96c0 35.3 28.7 64 64 64l0 128c0 17.7 14.3 32 32 32h64c17.7 0 32-14.3 32-32V352l8.7 0c67.9 0 133 27 181 75l43.6 43.6c9.2 9.2 22.9 11.9 34.9 6.9s19.8-16.6 19.8-29.6V300.4c18.6-8.8 32-32.5 32-60.4s-13.4-51.6-32-60.4V32zm-64 76.7V240 371.3C357.2 317.8 280.5 288 200.7 288H192V192h8.7c79.8 0 156.5-29.8 215.3-83.3z" />
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</svg>
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<span>纸质书已发布，详情请见<a href="/chapter_paperbook/">纸质书介绍</a></span>
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<span>纸质书已发布，详情请见<a href="/chapter_paperbook/">这里</a></span>
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</div>
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</div>
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@@ -3521,7 +3521,7 @@
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.5.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc.--><path d="M96 0C43 0 0 43 0 96v320c0 53 43 96 96 96h320c17.7 0 32-14.3 32-32s-14.3-32-32-32v-64c17.7 0 32-14.3 32-32V32c0-17.7-14.3-32-32-32H96zm0 384h256v64H96c-17.7 0-32-14.3-32-32s14.3-32 32-32zm32-240c0-8.8 7.2-16 16-16h192c8.8 0 16 7.2 16 16s-7.2 16-16 16H144c-8.8 0-16-7.2-16-16zm16 48h192c8.8 0 16 7.2 16 16s-7.2 16-16 16H144c-8.8 0-16-7.2-16-16s7.2-16 16-16z"/></svg>
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<span class="md-ellipsis">
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纸质书介绍
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纸质书
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</span>
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@@ -3540,7 +3540,7 @@
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_19_label" aria-expanded="false">
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<label class="md-nav__title" for="__nav_19">
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<span class="md-nav__icon md-icon"></span>
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纸质书介绍
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纸质书
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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@@ -5170,9 +5170,9 @@
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<a id="__codelineno-21-18" name="__codelineno-21-18" href="#__codelineno-21-18"></a><span class="cm">/* 基于双向链表实现的双向队列 */</span>
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<a id="__codelineno-21-19" name="__codelineno-21-19" href="#__codelineno-21-19"></a><span class="cp">#[allow(dead_code)]</span>
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<a id="__codelineno-21-20" name="__codelineno-21-20" href="#__codelineno-21-20"></a><span class="k">pub</span><span class="w"> </span><span class="k">struct</span> <span class="nc">LinkedListDeque</span><span class="o"><</span><span class="n">T</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-21" name="__codelineno-21-21" href="#__codelineno-21-21"></a><span class="w"> </span><span class="n">front</span>: <span class="nb">Option</span><span class="o"><</span><span class="n">Rc</span><span class="o"><</span><span class="n">RefCell</span><span class="o"><</span><span class="n">ListNode</span><span class="o"><</span><span class="n">T</span><span class="o">>>>></span><span class="p">,</span><span class="w"> </span><span class="c1">// 头节点 front</span>
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<a id="__codelineno-21-22" name="__codelineno-21-22" href="#__codelineno-21-22"></a><span class="w"> </span><span class="n">rear</span>: <span class="nb">Option</span><span class="o"><</span><span class="n">Rc</span><span class="o"><</span><span class="n">RefCell</span><span class="o"><</span><span class="n">ListNode</span><span class="o"><</span><span class="n">T</span><span class="o">>>>></span><span class="p">,</span><span class="w"> </span><span class="c1">// 尾节点 rear </span>
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<a id="__codelineno-21-23" name="__codelineno-21-23" href="#__codelineno-21-23"></a><span class="w"> </span><span class="n">que_size</span>: <span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="c1">// 双向队列的长度</span>
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<a id="__codelineno-21-21" name="__codelineno-21-21" href="#__codelineno-21-21"></a><span class="w"> </span><span class="n">front</span>: <span class="nb">Option</span><span class="o"><</span><span class="n">Rc</span><span class="o"><</span><span class="n">RefCell</span><span class="o"><</span><span class="n">ListNode</span><span class="o"><</span><span class="n">T</span><span class="o">>>>></span><span class="p">,</span><span class="w"> </span><span class="c1">// 头节点 front</span>
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<a id="__codelineno-21-22" name="__codelineno-21-22" href="#__codelineno-21-22"></a><span class="w"> </span><span class="n">rear</span>: <span class="nb">Option</span><span class="o"><</span><span class="n">Rc</span><span class="o"><</span><span class="n">RefCell</span><span class="o"><</span><span class="n">ListNode</span><span class="o"><</span><span class="n">T</span><span class="o">>>>></span><span class="p">,</span><span class="w"> </span><span class="c1">// 尾节点 rear</span>
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<a id="__codelineno-21-23" name="__codelineno-21-23" href="#__codelineno-21-23"></a><span class="w"> </span><span class="n">que_size</span>: <span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="c1">// 双向队列的长度</span>
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<a id="__codelineno-21-24" name="__codelineno-21-24" href="#__codelineno-21-24"></a><span class="p">}</span>
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<a id="__codelineno-21-25" name="__codelineno-21-25" href="#__codelineno-21-25"></a>
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<a id="__codelineno-21-26" name="__codelineno-21-26" href="#__codelineno-21-26"></a><span class="k">impl</span><span class="o"><</span><span class="n">T</span>: <span class="nb">Copy</span><span class="o">></span><span class="w"> </span><span class="n">LinkedListDeque</span><span class="o"><</span><span class="n">T</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
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@@ -5180,7 +5180,7 @@
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<a id="__codelineno-21-28" name="__codelineno-21-28" href="#__codelineno-21-28"></a><span class="w"> </span><span class="bp">Self</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-29" name="__codelineno-21-29" href="#__codelineno-21-29"></a><span class="w"> </span><span class="n">front</span>: <span class="nb">None</span><span class="p">,</span>
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<a id="__codelineno-21-30" name="__codelineno-21-30" href="#__codelineno-21-30"></a><span class="w"> </span><span class="n">rear</span>: <span class="nb">None</span><span class="p">,</span>
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<a id="__codelineno-21-31" name="__codelineno-21-31" href="#__codelineno-21-31"></a><span class="w"> </span><span class="n">que_size</span>: <span class="mi">0</span><span class="p">,</span><span class="w"> </span>
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<a id="__codelineno-21-31" name="__codelineno-21-31" href="#__codelineno-21-31"></a><span class="w"> </span><span class="n">que_size</span>: <span class="mi">0</span><span class="p">,</span>
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<a id="__codelineno-21-32" name="__codelineno-21-32" href="#__codelineno-21-32"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-33" name="__codelineno-21-33" href="#__codelineno-21-33"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-34" name="__codelineno-21-34" href="#__codelineno-21-34"></a>
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@@ -5212,7 +5212,7 @@
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<a id="__codelineno-21-60" name="__codelineno-21-60" href="#__codelineno-21-60"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">front</span><span class="w"> </span><span class="o">=</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="c1">// 更新头节点</span>
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<a id="__codelineno-21-61" name="__codelineno-21-61" href="#__codelineno-21-61"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-62" name="__codelineno-21-62" href="#__codelineno-21-62"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-63" name="__codelineno-21-63" href="#__codelineno-21-63"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span>
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<a id="__codelineno-21-63" name="__codelineno-21-63" href="#__codelineno-21-63"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-64" name="__codelineno-21-64" href="#__codelineno-21-64"></a><span class="w"> </span><span class="c1">// 队尾入队操作</span>
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<a id="__codelineno-21-65" name="__codelineno-21-65" href="#__codelineno-21-65"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-66" name="__codelineno-21-66" href="#__codelineno-21-66"></a><span class="w"> </span><span class="k">match</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">rear</span><span class="p">.</span><span class="n">take</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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@@ -5245,8 +5245,8 @@
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<a id="__codelineno-21-93" name="__codelineno-21-93" href="#__codelineno-21-93"></a><span class="w"> </span><span class="cm">/* 出队操作 */</span>
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<a id="__codelineno-21-94" name="__codelineno-21-94" href="#__codelineno-21-94"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">pop</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">is_front</span>: <span class="kt">bool</span><span class="p">)</span><span class="w"> </span>-> <span class="nb">Option</span><span class="o"><</span><span class="n">T</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-95" name="__codelineno-21-95" href="#__codelineno-21-95"></a><span class="w"> </span><span class="c1">// 若队列为空，直接返回 None</span>
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<a id="__codelineno-21-96" name="__codelineno-21-96" href="#__codelineno-21-96"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">is_empty</span><span class="p">()</span><span class="w"> </span><span class="p">{</span><span class="w"> </span>
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<a id="__codelineno-21-97" name="__codelineno-21-97" href="#__codelineno-21-97"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nb">None</span><span class="w"> </span>
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<a id="__codelineno-21-96" name="__codelineno-21-96" href="#__codelineno-21-96"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">is_empty</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-97" name="__codelineno-21-97" href="#__codelineno-21-97"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nb">None</span><span class="p">;</span>
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<a id="__codelineno-21-98" name="__codelineno-21-98" href="#__codelineno-21-98"></a><span class="w"> </span><span class="p">};</span>
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<a id="__codelineno-21-99" name="__codelineno-21-99" href="#__codelineno-21-99"></a><span class="w"> </span><span class="c1">// 队首出队操作</span>
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<a id="__codelineno-21-100" name="__codelineno-21-100" href="#__codelineno-21-100"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">is_front</span><span class="w"> </span><span class="p">{</span>
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@@ -5254,7 +5254,7 @@
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<a id="__codelineno-21-102" name="__codelineno-21-102" href="#__codelineno-21-102"></a><span class="w"> </span><span class="k">match</span><span class="w"> </span><span class="n">old_front</span><span class="p">.</span><span class="n">borrow_mut</span><span class="p">().</span><span class="n">next</span><span class="p">.</span><span class="n">take</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-103" name="__codelineno-21-103" href="#__codelineno-21-103"></a><span class="w"> </span><span class="nb">Some</span><span class="p">(</span><span class="n">new_front</span><span class="p">)</span><span class="w"> </span><span class="o">=></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-104" name="__codelineno-21-104" href="#__codelineno-21-104"></a><span class="w"> </span><span class="n">new_front</span><span class="p">.</span><span class="n">borrow_mut</span><span class="p">().</span><span class="n">prev</span><span class="p">.</span><span class="n">take</span><span class="p">();</span>
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<a id="__codelineno-21-105" name="__codelineno-21-105" href="#__codelineno-21-105"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">front</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">Some</span><span class="p">(</span><span class="n">new_front</span><span class="p">);</span><span class="w"> </span><span class="c1">// 更新头节点</span>
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<a id="__codelineno-21-105" name="__codelineno-21-105" href="#__codelineno-21-105"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">front</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">Some</span><span class="p">(</span><span class="n">new_front</span><span class="p">);</span><span class="w"> </span><span class="c1">// 更新头节点</span>
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<a id="__codelineno-21-106" name="__codelineno-21-106" href="#__codelineno-21-106"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-107" name="__codelineno-21-107" href="#__codelineno-21-107"></a><span class="w"> </span><span class="nb">None</span><span class="w"> </span><span class="o">=></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-108" name="__codelineno-21-108" href="#__codelineno-21-108"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">rear</span><span class="p">.</span><span class="n">take</span><span class="p">();</span>
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@@ -5263,56 +5263,55 @@
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<a id="__codelineno-21-111" name="__codelineno-21-111" href="#__codelineno-21-111"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">que_size</span><span class="w"> </span><span class="o">-=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="c1">// 更新队列长度</span>
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<a id="__codelineno-21-112" name="__codelineno-21-112" href="#__codelineno-21-112"></a><span class="w"> </span><span class="n">Rc</span>::<span class="n">try_unwrap</span><span class="p">(</span><span class="n">old_front</span><span class="p">).</span><span class="n">ok</span><span class="p">().</span><span class="n">unwrap</span><span class="p">().</span><span class="n">into_inner</span><span class="p">().</span><span class="n">val</span>
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<a id="__codelineno-21-113" name="__codelineno-21-113" href="#__codelineno-21-113"></a><span class="w"> </span><span class="p">})</span>
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<a id="__codelineno-21-114" name="__codelineno-21-114" href="#__codelineno-21-114"></a>
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<a id="__codelineno-21-115" name="__codelineno-21-115" href="#__codelineno-21-115"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span>
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<a id="__codelineno-21-116" name="__codelineno-21-116" href="#__codelineno-21-116"></a><span class="w"> </span><span class="c1">// 队尾出队操作</span>
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<a id="__codelineno-21-117" name="__codelineno-21-117" href="#__codelineno-21-117"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-118" name="__codelineno-21-118" href="#__codelineno-21-118"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">rear</span><span class="p">.</span><span class="n">take</span><span class="p">().</span><span class="n">map</span><span class="p">(</span><span class="o">|</span><span class="n">old_rear</span><span class="o">|</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-119" name="__codelineno-21-119" href="#__codelineno-21-119"></a><span class="w"> </span><span class="k">match</span><span class="w"> </span><span class="n">old_rear</span><span class="p">.</span><span class="n">borrow_mut</span><span class="p">().</span><span class="n">prev</span><span class="p">.</span><span class="n">take</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-120" name="__codelineno-21-120" href="#__codelineno-21-120"></a><span class="w"> </span><span class="nb">Some</span><span class="p">(</span><span class="n">new_rear</span><span class="p">)</span><span class="w"> </span><span class="o">=></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-121" name="__codelineno-21-121" href="#__codelineno-21-121"></a><span class="w"> </span><span class="n">new_rear</span><span class="p">.</span><span class="n">borrow_mut</span><span class="p">().</span><span class="n">next</span><span class="p">.</span><span class="n">take</span><span class="p">();</span>
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<a id="__codelineno-21-122" name="__codelineno-21-122" href="#__codelineno-21-122"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">rear</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">Some</span><span class="p">(</span><span class="n">new_rear</span><span class="p">);</span><span class="w"> </span><span class="c1">// 更新尾节点</span>
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<a id="__codelineno-21-123" name="__codelineno-21-123" href="#__codelineno-21-123"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-124" name="__codelineno-21-124" href="#__codelineno-21-124"></a><span class="w"> </span><span class="nb">None</span><span class="w"> </span><span class="o">=></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-125" name="__codelineno-21-125" href="#__codelineno-21-125"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">front</span><span class="p">.</span><span class="n">take</span><span class="p">();</span>
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<a id="__codelineno-21-126" name="__codelineno-21-126" href="#__codelineno-21-126"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-127" name="__codelineno-21-127" href="#__codelineno-21-127"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-128" name="__codelineno-21-128" href="#__codelineno-21-128"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">que_size</span><span class="w"> </span><span class="o">-=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="c1">// 更新队列长度</span>
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<a id="__codelineno-21-129" name="__codelineno-21-129" href="#__codelineno-21-129"></a><span class="w"> </span><span class="n">Rc</span>::<span class="n">try_unwrap</span><span class="p">(</span><span class="n">old_rear</span><span class="p">).</span><span class="n">ok</span><span class="p">().</span><span class="n">unwrap</span><span class="p">().</span><span class="n">into_inner</span><span class="p">().</span><span class="n">val</span>
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<a id="__codelineno-21-130" name="__codelineno-21-130" href="#__codelineno-21-130"></a><span class="w"> </span><span class="p">})</span>
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<a id="__codelineno-21-131" name="__codelineno-21-131" href="#__codelineno-21-131"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-132" name="__codelineno-21-132" href="#__codelineno-21-132"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-133" name="__codelineno-21-133" href="#__codelineno-21-133"></a>
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<a id="__codelineno-21-134" name="__codelineno-21-134" href="#__codelineno-21-134"></a><span class="w"> </span><span class="cm">/* 队首出队 */</span>
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<a id="__codelineno-21-135" name="__codelineno-21-135" href="#__codelineno-21-135"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">pop_first</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">)</span><span class="w"> </span>-> <span class="nb">Option</span><span class="o"><</span><span class="n">T</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-136" name="__codelineno-21-136" href="#__codelineno-21-136"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">pop</span><span class="p">(</span><span class="kc">true</span><span class="p">);</span>
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<a id="__codelineno-21-137" name="__codelineno-21-137" href="#__codelineno-21-137"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-138" name="__codelineno-21-138" href="#__codelineno-21-138"></a>
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<a id="__codelineno-21-139" name="__codelineno-21-139" href="#__codelineno-21-139"></a><span class="w"> </span><span class="cm">/* 队尾出队 */</span>
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<a id="__codelineno-21-140" name="__codelineno-21-140" href="#__codelineno-21-140"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">pop_last</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">)</span><span class="w"> </span>-> <span class="nb">Option</span><span class="o"><</span><span class="n">T</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-141" name="__codelineno-21-141" href="#__codelineno-21-141"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">pop</span><span class="p">(</span><span class="kc">false</span><span class="p">);</span>
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<a id="__codelineno-21-142" name="__codelineno-21-142" href="#__codelineno-21-142"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-143" name="__codelineno-21-143" href="#__codelineno-21-143"></a>
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<a id="__codelineno-21-144" name="__codelineno-21-144" href="#__codelineno-21-144"></a><span class="w"> </span><span class="cm">/* 访问队首元素 */</span>
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<a id="__codelineno-21-145" name="__codelineno-21-145" href="#__codelineno-21-145"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">peek_first</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">)</span><span class="w"> </span>-> <span class="nb">Option</span><span class="o"><&</span><span class="n">Rc</span><span class="o"><</span><span class="n">RefCell</span><span class="o"><</span><span class="n">ListNode</span><span class="o"><</span><span class="n">T</span><span class="o">>>>></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-146" name="__codelineno-21-146" href="#__codelineno-21-146"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">front</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()</span>
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<a id="__codelineno-21-147" name="__codelineno-21-147" href="#__codelineno-21-147"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-148" name="__codelineno-21-148" href="#__codelineno-21-148"></a>
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<a id="__codelineno-21-149" name="__codelineno-21-149" href="#__codelineno-21-149"></a><span class="w"> </span><span class="cm">/* 访问队尾元素 */</span>
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<a id="__codelineno-21-150" name="__codelineno-21-150" href="#__codelineno-21-150"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">peek_last</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">)</span><span class="w"> </span>-> <span class="nb">Option</span><span class="o"><&</span><span class="n">Rc</span><span class="o"><</span><span class="n">RefCell</span><span class="o"><</span><span class="n">ListNode</span><span class="o"><</span><span class="n">T</span><span class="o">>>>></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-151" name="__codelineno-21-151" href="#__codelineno-21-151"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">rear</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()</span>
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<a id="__codelineno-21-152" name="__codelineno-21-152" href="#__codelineno-21-152"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-153" name="__codelineno-21-153" href="#__codelineno-21-153"></a>
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<a id="__codelineno-21-154" name="__codelineno-21-154" href="#__codelineno-21-154"></a><span class="w"> </span><span class="cm">/* 返回数组用于打印 */</span>
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<a id="__codelineno-21-155" name="__codelineno-21-155" href="#__codelineno-21-155"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">to_array</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">head</span>: <span class="nb">Option</span><span class="o"><&</span><span class="n">Rc</span><span class="o"><</span><span class="n">RefCell</span><span class="o"><</span><span class="n">ListNode</span><span class="o"><</span><span class="n">T</span><span class="o">>>>></span><span class="p">)</span><span class="w"> </span>-> <span class="nb">Vec</span><span class="o"><</span><span class="n">T</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-156" name="__codelineno-21-156" href="#__codelineno-21-156"></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">head</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-157" name="__codelineno-21-157" href="#__codelineno-21-157"></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">nums</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">to_array</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">next</span><span class="p">.</span><span class="n">as_ref</span><span class="p">());</span>
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<a id="__codelineno-21-158" name="__codelineno-21-158" href="#__codelineno-21-158"></a><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">0</span><span class="p">,</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">val</span><span class="p">);</span>
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<a id="__codelineno-21-159" name="__codelineno-21-159" href="#__codelineno-21-159"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="p">;</span>
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<a id="__codelineno-21-160" name="__codelineno-21-160" href="#__codelineno-21-160"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-161" name="__codelineno-21-161" href="#__codelineno-21-161"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nb">Vec</span>::<span class="n">new</span><span class="p">();</span>
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<a id="__codelineno-21-162" name="__codelineno-21-162" href="#__codelineno-21-162"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-163" name="__codelineno-21-163" href="#__codelineno-21-163"></a><span class="p">}</span>
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<a id="__codelineno-21-114" name="__codelineno-21-114" href="#__codelineno-21-114"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-115" name="__codelineno-21-115" href="#__codelineno-21-115"></a><span class="w"> </span><span class="c1">// 队尾出队操作</span>
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<a id="__codelineno-21-116" name="__codelineno-21-116" href="#__codelineno-21-116"></a><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-117" name="__codelineno-21-117" href="#__codelineno-21-117"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">rear</span><span class="p">.</span><span class="n">take</span><span class="p">().</span><span class="n">map</span><span class="p">(</span><span class="o">|</span><span class="n">old_rear</span><span class="o">|</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-118" name="__codelineno-21-118" href="#__codelineno-21-118"></a><span class="w"> </span><span class="k">match</span><span class="w"> </span><span class="n">old_rear</span><span class="p">.</span><span class="n">borrow_mut</span><span class="p">().</span><span class="n">prev</span><span class="p">.</span><span class="n">take</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-119" name="__codelineno-21-119" href="#__codelineno-21-119"></a><span class="w"> </span><span class="nb">Some</span><span class="p">(</span><span class="n">new_rear</span><span class="p">)</span><span class="w"> </span><span class="o">=></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-120" name="__codelineno-21-120" href="#__codelineno-21-120"></a><span class="w"> </span><span class="n">new_rear</span><span class="p">.</span><span class="n">borrow_mut</span><span class="p">().</span><span class="n">next</span><span class="p">.</span><span class="n">take</span><span class="p">();</span>
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<a id="__codelineno-21-121" name="__codelineno-21-121" href="#__codelineno-21-121"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">rear</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">Some</span><span class="p">(</span><span class="n">new_rear</span><span class="p">);</span><span class="w"> </span><span class="c1">// 更新尾节点</span>
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<a id="__codelineno-21-122" name="__codelineno-21-122" href="#__codelineno-21-122"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-123" name="__codelineno-21-123" href="#__codelineno-21-123"></a><span class="w"> </span><span class="nb">None</span><span class="w"> </span><span class="o">=></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-124" name="__codelineno-21-124" href="#__codelineno-21-124"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">front</span><span class="p">.</span><span class="n">take</span><span class="p">();</span>
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<a id="__codelineno-21-125" name="__codelineno-21-125" href="#__codelineno-21-125"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-126" name="__codelineno-21-126" href="#__codelineno-21-126"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-127" name="__codelineno-21-127" href="#__codelineno-21-127"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">que_size</span><span class="w"> </span><span class="o">-=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="c1">// 更新队列长度</span>
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<a id="__codelineno-21-128" name="__codelineno-21-128" href="#__codelineno-21-128"></a><span class="w"> </span><span class="n">Rc</span>::<span class="n">try_unwrap</span><span class="p">(</span><span class="n">old_rear</span><span class="p">).</span><span class="n">ok</span><span class="p">().</span><span class="n">unwrap</span><span class="p">().</span><span class="n">into_inner</span><span class="p">().</span><span class="n">val</span>
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<a id="__codelineno-21-129" name="__codelineno-21-129" href="#__codelineno-21-129"></a><span class="w"> </span><span class="p">})</span>
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<a id="__codelineno-21-130" name="__codelineno-21-130" href="#__codelineno-21-130"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-131" name="__codelineno-21-131" href="#__codelineno-21-131"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-132" name="__codelineno-21-132" href="#__codelineno-21-132"></a>
|
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|
<a id="__codelineno-21-133" name="__codelineno-21-133" href="#__codelineno-21-133"></a><span class="w"> </span><span class="cm">/* 队首出队 */</span>
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<a id="__codelineno-21-134" name="__codelineno-21-134" href="#__codelineno-21-134"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">pop_first</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">)</span><span class="w"> </span>-> <span class="nb">Option</span><span class="o"><</span><span class="n">T</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-135" name="__codelineno-21-135" href="#__codelineno-21-135"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">pop</span><span class="p">(</span><span class="kc">true</span><span class="p">);</span>
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<a id="__codelineno-21-136" name="__codelineno-21-136" href="#__codelineno-21-136"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-137" name="__codelineno-21-137" href="#__codelineno-21-137"></a>
|
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|
<a id="__codelineno-21-138" name="__codelineno-21-138" href="#__codelineno-21-138"></a><span class="w"> </span><span class="cm">/* 队尾出队 */</span>
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<a id="__codelineno-21-139" name="__codelineno-21-139" href="#__codelineno-21-139"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">pop_last</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">)</span><span class="w"> </span>-> <span class="nb">Option</span><span class="o"><</span><span class="n">T</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-140" name="__codelineno-21-140" href="#__codelineno-21-140"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">pop</span><span class="p">(</span><span class="kc">false</span><span class="p">);</span>
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<a id="__codelineno-21-141" name="__codelineno-21-141" href="#__codelineno-21-141"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-142" name="__codelineno-21-142" href="#__codelineno-21-142"></a>
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<a id="__codelineno-21-143" name="__codelineno-21-143" href="#__codelineno-21-143"></a><span class="w"> </span><span class="cm">/* 访问队首元素 */</span>
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<a id="__codelineno-21-144" name="__codelineno-21-144" href="#__codelineno-21-144"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">peek_first</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">)</span><span class="w"> </span>-> <span class="nb">Option</span><span class="o"><&</span><span class="n">Rc</span><span class="o"><</span><span class="n">RefCell</span><span class="o"><</span><span class="n">ListNode</span><span class="o"><</span><span class="n">T</span><span class="o">>>>></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-145" name="__codelineno-21-145" href="#__codelineno-21-145"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">front</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()</span>
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<a id="__codelineno-21-146" name="__codelineno-21-146" href="#__codelineno-21-146"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-147" name="__codelineno-21-147" href="#__codelineno-21-147"></a>
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<a id="__codelineno-21-148" name="__codelineno-21-148" href="#__codelineno-21-148"></a><span class="w"> </span><span class="cm">/* 访问队尾元素 */</span>
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<a id="__codelineno-21-149" name="__codelineno-21-149" href="#__codelineno-21-149"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">peek_last</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">)</span><span class="w"> </span>-> <span class="nb">Option</span><span class="o"><&</span><span class="n">Rc</span><span class="o"><</span><span class="n">RefCell</span><span class="o"><</span><span class="n">ListNode</span><span class="o"><</span><span class="n">T</span><span class="o">>>>></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-150" name="__codelineno-21-150" href="#__codelineno-21-150"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">rear</span><span class="p">.</span><span class="n">as_ref</span><span class="p">()</span>
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<a id="__codelineno-21-151" name="__codelineno-21-151" href="#__codelineno-21-151"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-152" name="__codelineno-21-152" href="#__codelineno-21-152"></a>
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<a id="__codelineno-21-153" name="__codelineno-21-153" href="#__codelineno-21-153"></a><span class="w"> </span><span class="cm">/* 返回数组用于打印 */</span>
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<a id="__codelineno-21-154" name="__codelineno-21-154" href="#__codelineno-21-154"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">to_array</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">head</span>: <span class="nb">Option</span><span class="o"><&</span><span class="n">Rc</span><span class="o"><</span><span class="n">RefCell</span><span class="o"><</span><span class="n">ListNode</span><span class="o"><</span><span class="n">T</span><span class="o">>>>></span><span class="p">)</span><span class="w"> </span>-> <span class="nb">Vec</span><span class="o"><</span><span class="n">T</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-155" name="__codelineno-21-155" href="#__codelineno-21-155"></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">head</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-21-156" name="__codelineno-21-156" href="#__codelineno-21-156"></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">nums</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">to_array</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">next</span><span class="p">.</span><span class="n">as_ref</span><span class="p">());</span>
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<a id="__codelineno-21-157" name="__codelineno-21-157" href="#__codelineno-21-157"></a><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">0</span><span class="p">,</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">val</span><span class="p">);</span>
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<a id="__codelineno-21-158" name="__codelineno-21-158" href="#__codelineno-21-158"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="p">;</span>
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<a id="__codelineno-21-159" name="__codelineno-21-159" href="#__codelineno-21-159"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-160" name="__codelineno-21-160" href="#__codelineno-21-160"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nb">Vec</span>::<span class="n">new</span><span class="p">();</span>
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<a id="__codelineno-21-161" name="__codelineno-21-161" href="#__codelineno-21-161"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-21-162" name="__codelineno-21-162" href="#__codelineno-21-162"></a><span class="p">}</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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@@ -6618,9 +6617,9 @@
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">array_deque.rs</span><pre><span></span><code><a id="__codelineno-33-1" name="__codelineno-33-1" href="#__codelineno-33-1"></a><span class="cm">/* 基于环形数组实现的双向队列 */</span>
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<a id="__codelineno-33-2" name="__codelineno-33-2" href="#__codelineno-33-2"></a><span class="k">struct</span> <span class="nc">ArrayDeque</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-33-3" name="__codelineno-33-3" href="#__codelineno-33-3"></a><span class="w"> </span><span class="n">nums</span>: <span class="nb">Vec</span><span class="o"><</span><span class="kt">i32</span><span class="o">></span><span class="p">,</span><span class="w"> </span><span class="c1">// 用于存储双向队列元素的数组</span>
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<a id="__codelineno-33-4" name="__codelineno-33-4" href="#__codelineno-33-4"></a><span class="w"> </span><span class="n">front</span>: <span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="c1">// 队首指针，指向队首元素</span>
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<a id="__codelineno-33-5" name="__codelineno-33-5" href="#__codelineno-33-5"></a><span class="w"> </span><span class="n">que_size</span>: <span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="c1">// 双向队列长度</span>
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<a id="__codelineno-33-3" name="__codelineno-33-3" href="#__codelineno-33-3"></a><span class="w"> </span><span class="n">nums</span>: <span class="nb">Vec</span><span class="o"><</span><span class="kt">i32</span><span class="o">></span><span class="p">,</span><span class="w"> </span><span class="c1">// 用于存储双向队列元素的数组</span>
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<a id="__codelineno-33-4" name="__codelineno-33-4" href="#__codelineno-33-4"></a><span class="w"> </span><span class="n">front</span>: <span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="c1">// 队首指针，指向队首元素</span>
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<a id="__codelineno-33-5" name="__codelineno-33-5" href="#__codelineno-33-5"></a><span class="w"> </span><span class="n">que_size</span>: <span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="c1">// 双向队列长度</span>
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<a id="__codelineno-33-6" name="__codelineno-33-6" href="#__codelineno-33-6"></a><span class="p">}</span>
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<a id="__codelineno-33-7" name="__codelineno-33-7" href="#__codelineno-33-7"></a>
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<a id="__codelineno-33-8" name="__codelineno-33-8" href="#__codelineno-33-8"></a><span class="k">impl</span><span class="w"> </span><span class="n">ArrayDeque</span><span class="w"> </span><span class="p">{</span>
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@@ -6660,7 +6659,7 @@
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<a id="__codelineno-33-42" name="__codelineno-33-42" href="#__codelineno-33-42"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">push_first</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">num</span>: <span class="kt">i32</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-33-43" name="__codelineno-33-43" href="#__codelineno-33-43"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">que_size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-33-44" name="__codelineno-33-44" href="#__codelineno-33-44"></a><span class="w"> </span><span class="fm">println!</span><span class="p">(</span><span class="s">"双向队列已满"</span><span class="p">);</span>
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<a id="__codelineno-33-45" name="__codelineno-33-45" href="#__codelineno-33-45"></a><span class="w"> </span><span class="k">return</span>
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<a id="__codelineno-33-45" name="__codelineno-33-45" href="#__codelineno-33-45"></a><span class="w"> </span><span class="k">return</span><span class="p">;</span>
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<a id="__codelineno-33-46" name="__codelineno-33-46" href="#__codelineno-33-46"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-33-47" name="__codelineno-33-47" href="#__codelineno-33-47"></a><span class="w"> </span><span class="c1">// 队首指针向左移动一位</span>
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<a id="__codelineno-33-48" name="__codelineno-33-48" href="#__codelineno-33-48"></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>
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@@ -6674,7 +6673,7 @@
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<a id="__codelineno-33-56" name="__codelineno-33-56" href="#__codelineno-33-56"></a><span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">push_last</span><span class="p">(</span><span class="o">&</span><span class="k">mut</span><span class="w"> </span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">num</span>: <span class="kt">i32</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-33-57" name="__codelineno-33-57" href="#__codelineno-33-57"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">que_size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-33-58" name="__codelineno-33-58" href="#__codelineno-33-58"></a><span class="w"> </span><span class="fm">println!</span><span class="p">(</span><span class="s">"双向队列已满"</span><span class="p">);</span>
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<a id="__codelineno-33-59" name="__codelineno-33-59" href="#__codelineno-33-59"></a><span class="w"> </span><span class="k">return</span>
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<a id="__codelineno-33-59" name="__codelineno-33-59" href="#__codelineno-33-59"></a><span class="w"> </span><span class="k">return</span><span class="p">;</span>
|
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<a id="__codelineno-33-60" name="__codelineno-33-60" href="#__codelineno-33-60"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-33-61" name="__codelineno-33-61" href="#__codelineno-33-61"></a><span class="w"> </span><span class="c1">// 计算队尾指针，指向队尾索引 + 1</span>
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<a id="__codelineno-33-62" name="__codelineno-33-62" href="#__codelineno-33-62"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">rear</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">index</span><span class="p">(</span><span class="bp">self</span><span class="p">.</span><span class="n">front</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="kt">i32</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">que_size</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="kt">i32</span><span class="p">);</span>
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@@ -6701,30 +6700,34 @@
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<a id="__codelineno-33-83" name="__codelineno-33-83" href="#__codelineno-33-83"></a>
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<a id="__codelineno-33-84" name="__codelineno-33-84" href="#__codelineno-33-84"></a><span class="w"> </span><span class="cm">/* 访问队首元素 */</span>
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<a id="__codelineno-33-85" name="__codelineno-33-85" href="#__codelineno-33-85"></a><span class="w"> </span><span class="k">fn</span> <span class="nf">peek_first</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">)</span><span class="w"> </span>-> <span class="kt">i32</span> <span class="p">{</span>
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<a id="__codelineno-33-86" name="__codelineno-33-86" href="#__codelineno-33-86"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">is_empty</span><span class="p">()</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="fm">panic!</span><span class="p">(</span><span class="s">"双向队列为空"</span><span class="p">)</span><span class="w"> </span><span class="p">};</span>
|
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<a id="__codelineno-33-87" name="__codelineno-33-87" href="#__codelineno-33-87"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">nums</span><span class="p">[</span><span class="bp">self</span><span class="p">.</span><span class="n">front</span><span class="p">]</span>
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<a id="__codelineno-33-88" name="__codelineno-33-88" href="#__codelineno-33-88"></a><span class="w"> </span><span class="p">}</span>
|
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|
<a id="__codelineno-33-89" name="__codelineno-33-89" href="#__codelineno-33-89"></a>
|
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|
<a id="__codelineno-33-90" name="__codelineno-33-90" href="#__codelineno-33-90"></a><span class="w"> </span><span class="cm">/* 访问队尾元素 */</span>
|
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|
<a id="__codelineno-33-91" name="__codelineno-33-91" href="#__codelineno-33-91"></a><span class="w"> </span><span class="k">fn</span> <span class="nf">peek_last</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">)</span><span class="w"> </span>-> <span class="kt">i32</span> <span class="p">{</span>
|
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|
<a id="__codelineno-33-92" name="__codelineno-33-92" href="#__codelineno-33-92"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">is_empty</span><span class="p">()</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="fm">panic!</span><span class="p">(</span><span class="s">"双向队列为空"</span><span class="p">)</span><span class="w"> </span><span class="p">};</span>
|
|
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|
<a id="__codelineno-33-93" name="__codelineno-33-93" href="#__codelineno-33-93"></a><span class="w"> </span><span class="c1">// 计算尾元素索引</span>
|
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|
<a id="__codelineno-33-94" name="__codelineno-33-94" href="#__codelineno-33-94"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">last</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">index</span><span class="p">(</span><span class="bp">self</span><span class="p">.</span><span class="n">front</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="kt">i32</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">que_size</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="kt">i32</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">);</span>
|
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<a id="__codelineno-33-95" name="__codelineno-33-95" href="#__codelineno-33-95"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">nums</span><span class="p">[</span><span class="n">last</span><span class="p">]</span>
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<a id="__codelineno-33-96" name="__codelineno-33-96" href="#__codelineno-33-96"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-33-97" name="__codelineno-33-97" href="#__codelineno-33-97"></a>
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<a id="__codelineno-33-98" name="__codelineno-33-98" href="#__codelineno-33-98"></a><span class="w"> </span><span class="cm">/* 返回数组用于打印 */</span>
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<a id="__codelineno-33-99" name="__codelineno-33-99" href="#__codelineno-33-99"></a><span class="w"> </span><span class="k">fn</span> <span class="nf">to_array</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">)</span><span class="w"> </span>-> <span class="nb">Vec</span><span class="o"><</span><span class="kt">i32</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-33-100" name="__codelineno-33-100" href="#__codelineno-33-100"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
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<a id="__codelineno-33-101" name="__codelineno-33-101" href="#__codelineno-33-101"></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">res</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="fm">vec!</span><span class="p">[</span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">que_size</span><span class="p">];</span>
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<a id="__codelineno-33-102" name="__codelineno-33-102" href="#__codelineno-33-102"></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">j</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">front</span><span class="p">;</span>
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<a id="__codelineno-33-103" name="__codelineno-33-103" href="#__codelineno-33-103"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="mi">0</span><span class="o">..</span><span class="bp">self</span><span class="p">.</span><span class="n">que_size</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-33-104" name="__codelineno-33-104" href="#__codelineno-33-104"></a><span class="w"> </span><span class="n">res</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="bp">self</span><span class="p">.</span><span class="n">nums</span><span class="p">[</span><span class="bp">self</span><span class="p">.</span><span class="n">index</span><span class="p">(</span><span class="n">j</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="kt">i32</span><span class="p">)];</span>
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<a id="__codelineno-33-105" name="__codelineno-33-105" href="#__codelineno-33-105"></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><span class="p">;</span>
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<a id="__codelineno-33-106" name="__codelineno-33-106" href="#__codelineno-33-106"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-33-107" name="__codelineno-33-107" href="#__codelineno-33-107"></a><span class="w"> </span><span class="n">res</span>
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<a id="__codelineno-33-108" name="__codelineno-33-108" href="#__codelineno-33-108"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-33-109" name="__codelineno-33-109" href="#__codelineno-33-109"></a><span class="p">}</span>
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<a id="__codelineno-33-86" name="__codelineno-33-86" href="#__codelineno-33-86"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">is_empty</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-33-87" name="__codelineno-33-87" href="#__codelineno-33-87"></a><span class="w"> </span><span class="fm">panic!</span><span class="p">(</span><span class="s">"双向队列为空"</span><span class="p">)</span>
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<a id="__codelineno-33-88" name="__codelineno-33-88" href="#__codelineno-33-88"></a><span class="w"> </span><span class="p">};</span>
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<a id="__codelineno-33-89" name="__codelineno-33-89" href="#__codelineno-33-89"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">nums</span><span class="p">[</span><span class="bp">self</span><span class="p">.</span><span class="n">front</span><span class="p">]</span>
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<a id="__codelineno-33-90" name="__codelineno-33-90" href="#__codelineno-33-90"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-33-91" name="__codelineno-33-91" href="#__codelineno-33-91"></a>
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<a id="__codelineno-33-92" name="__codelineno-33-92" href="#__codelineno-33-92"></a><span class="w"> </span><span class="cm">/* 访问队尾元素 */</span>
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<a id="__codelineno-33-93" name="__codelineno-33-93" href="#__codelineno-33-93"></a><span class="w"> </span><span class="k">fn</span> <span class="nf">peek_last</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">)</span><span class="w"> </span>-> <span class="kt">i32</span> <span class="p">{</span>
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<a id="__codelineno-33-94" name="__codelineno-33-94" href="#__codelineno-33-94"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">is_empty</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-33-95" name="__codelineno-33-95" href="#__codelineno-33-95"></a><span class="w"> </span><span class="fm">panic!</span><span class="p">(</span><span class="s">"双向队列为空"</span><span class="p">)</span>
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<a id="__codelineno-33-96" name="__codelineno-33-96" href="#__codelineno-33-96"></a><span class="w"> </span><span class="p">};</span>
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<a id="__codelineno-33-97" name="__codelineno-33-97" href="#__codelineno-33-97"></a><span class="w"> </span><span class="c1">// 计算尾元素索引</span>
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<a id="__codelineno-33-98" name="__codelineno-33-98" href="#__codelineno-33-98"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">last</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">index</span><span class="p">(</span><span class="bp">self</span><span class="p">.</span><span class="n">front</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="kt">i32</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">que_size</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="kt">i32</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">);</span>
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<a id="__codelineno-33-99" name="__codelineno-33-99" href="#__codelineno-33-99"></a><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">nums</span><span class="p">[</span><span class="n">last</span><span class="p">]</span>
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<a id="__codelineno-33-100" name="__codelineno-33-100" href="#__codelineno-33-100"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-33-101" name="__codelineno-33-101" href="#__codelineno-33-101"></a>
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<a id="__codelineno-33-102" name="__codelineno-33-102" href="#__codelineno-33-102"></a><span class="w"> </span><span class="cm">/* 返回数组用于打印 */</span>
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<a id="__codelineno-33-103" name="__codelineno-33-103" href="#__codelineno-33-103"></a><span class="w"> </span><span class="k">fn</span> <span class="nf">to_array</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">)</span><span class="w"> </span>-> <span class="nb">Vec</span><span class="o"><</span><span class="kt">i32</span><span class="o">></span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-33-104" name="__codelineno-33-104" href="#__codelineno-33-104"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
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<a id="__codelineno-33-105" name="__codelineno-33-105" href="#__codelineno-33-105"></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">res</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="fm">vec!</span><span class="p">[</span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="bp">self</span><span class="p">.</span><span class="n">que_size</span><span class="p">];</span>
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<a id="__codelineno-33-106" name="__codelineno-33-106" href="#__codelineno-33-106"></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">j</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">front</span><span class="p">;</span>
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<a id="__codelineno-33-107" name="__codelineno-33-107" href="#__codelineno-33-107"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="mi">0</span><span class="o">..</span><span class="bp">self</span><span class="p">.</span><span class="n">que_size</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-33-108" name="__codelineno-33-108" href="#__codelineno-33-108"></a><span class="w"> </span><span class="n">res</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="bp">self</span><span class="p">.</span><span class="n">nums</span><span class="p">[</span><span class="bp">self</span><span class="p">.</span><span class="n">index</span><span class="p">(</span><span class="n">j</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="kt">i32</span><span class="p">)];</span>
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<a id="__codelineno-33-109" name="__codelineno-33-109" href="#__codelineno-33-109"></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><span class="p">;</span>
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<a id="__codelineno-33-110" name="__codelineno-33-110" href="#__codelineno-33-110"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-33-111" name="__codelineno-33-111" href="#__codelineno-33-111"></a><span class="w"> </span><span class="n">res</span>
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<a id="__codelineno-33-112" name="__codelineno-33-112" href="#__codelineno-33-112"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-33-113" name="__codelineno-33-113" href="#__codelineno-33-113"></a><span class="p">}</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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krahets