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常用数据结构C++实现(2)：栈和队列 | 雅乐网 </title>
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<ul id="content-index-contents"><li class="content-index-level-1"><a href="http://www.yalewoo.com/data_structure_cpp_2_stack_and_queue.html#栈（Stack）" title="栈（Stack）"><em>1</em><span>栈（Stack）</span></a><ul class="children"><li class="content-index-level-2"><a href="http://www.yalewoo.com/data_structure_cpp_2_stack_and_queue.html#C++实现" title="C++实现"><em>1.1</em><span>C++实现</span></a></li></ul></li><li class="content-index-level-1"><a href="http://www.yalewoo.com/data_structure_cpp_2_stack_and_queue.html#队列（Queue）" title="队列（Queue）"><em>2</em><span>队列（Queue）</span></a><ul class="children"><li class="content-index-level-2"><a href="http://www.yalewoo.com/data_structure_cpp_2_stack_and_queue.html#C++实现" title="C++实现"><em>2.1</em><span>C++实现</span></a></li></ul></li></ul></div>
<p>栈和队列都可以看做插入和删除受限制的线性表，通过继承线性表可以实现栈和队列。</p>
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<p>Github: <a target="_blank" title="https://github.com/yalewoo/cpp-data-structure" href="https://github.com/yalewoo/cpp-data-structure" target="_blank">https://github.com/yalewoo/cpp-data-structure</a></p>
<h3 id="栈（Stack）">栈（Stack）</h3>
<p>从Vector派生而来，新增的接口有入栈、出栈和返回栈顶元素。直接通过线性表的接口来实现。</p>
<h4 id="C++实现">C++实现</h4>
<p>stack.h</p>
<div id="crayon-5a5ef9a00125e234174465" class="crayon-syntax crayon-theme-classic crayon-font-consolas crayon-os-pc print-yes notranslate" data-settings=" minimize scroll-mouseover disable-anim wrap" style=" margin-top: 12px; margin-bottom: 12px; font-size: 20px !important; line-height: 30px !important;">
<div class="crayon-plain-wrap"><textarea class="crayon-plain print-no" data-settings="dblclick" readonly style="-moz-tab-size:4; -o-tab-size:4; -webkit-tab-size:4; tab-size:4; font-size: 20px !important; line-height: 30px !important;">
#ifndef MY_STACK_H
#define MY_STACK_H
#include "Vector.h"
template <typename T>
class Stack : public Vector<T>
{
public:
using Vector<T>::size;
void push(T const & e) { this->insert(size(), e); }
T pop() { return this->remove(size()-1); }
T top() {return this->get(size()-1); }
};
#endif</textarea></div>
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<div class="crayon-nums-content" style="font-size: 20px !important; line-height: 30px !important;"><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-1">1</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-2">2</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-3">3</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-4">4</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-5">5</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-6">6</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-7">7</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-8">8</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-9">9</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-10">10</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-11">11</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-12">12</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-13">13</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-14">14</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-15">15</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-16">16</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-17">17</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-18">18</div><div class="crayon-num" data-line="crayon-5a5ef9a00125e234174465-19">19</div></div>
</td>
<td class="crayon-code"><div class="crayon-pre" style="font-size: 20px !important; line-height: 30px !important; -moz-tab-size:4; -o-tab-size:4; -webkit-tab-size:4; tab-size:4;"><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-1"><span class="crayon-p">#ifndef MY_STACK_H</span></div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-2"><span class="crayon-p">#define MY_STACK_H</span></div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-3"> </div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-4"> </div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-5"><span class="crayon-p">#include "Vector.h"</span></div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-6"><span class="crayon-t">template</span><span class="crayon-h"> </span><span class="crayon-o"><</span><span class="crayon-r">typename</span><span class="crayon-h"> </span><span class="crayon-v">T</span><span class="crayon-o">></span></div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-7"><span class="crayon-t">class</span><span class="crayon-h"> </span><span class="crayon-v">Stack</span><span class="crayon-h"> </span><span class="crayon-o">:</span><span class="crayon-h"> </span><span class="crayon-m">public</span><span class="crayon-h"> </span><span class="crayon-e">Vector</span><span class="crayon-o"><</span><span class="crayon-e">T</span><span class="crayon-o">></span></div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-8"><span class="crayon-sy">{</span></div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-9"><span class="crayon-m">public</span><span class="crayon-o">:</span></div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-10"> </div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-11"><span class="crayon-h"> </span><span class="crayon-r">using</span><span class="crayon-h"> </span><span class="crayon-v">Vector</span><span class="crayon-o"><</span><span class="crayon-v">T</span><span class="crayon-o">></span><span class="crayon-o">::</span><span class="crayon-v">size</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-12"> </div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-13"><span class="crayon-h"> </span><span class="crayon-t">void</span><span class="crayon-h"> </span><span class="crayon-e">push</span><span class="crayon-sy">(</span><span class="crayon-i">T</span><span class="crayon-h"> </span><span class="crayon-m">const</span><span class="crayon-h"> </span><span class="crayon-o">&</span><span class="crayon-h"> </span><span class="crayon-v">e</span><span class="crayon-sy">)</span><span class="crayon-h"> </span><span class="crayon-sy">{</span><span class="crayon-h"> </span><span class="crayon-r">this</span><span class="crayon-o">-></span><span class="crayon-e">insert</span><span class="crayon-sy">(</span><span class="crayon-e">size</span><span class="crayon-sy">(</span><span class="crayon-sy">)</span><span class="crayon-sy">,</span><span class="crayon-h"> </span><span class="crayon-v">e</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span><span class="crayon-h"> </span><span class="crayon-sy">}</span></div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-14"><span class="crayon-h"> </span><span class="crayon-i">T</span><span class="crayon-h"> </span><span class="crayon-e">pop</span><span class="crayon-sy">(</span><span class="crayon-sy">)</span><span class="crayon-h"> </span><span class="crayon-sy">{</span><span class="crayon-h"> </span><span class="crayon-st">return</span><span class="crayon-h"> </span><span class="crayon-r">this</span><span class="crayon-o">-></span><span class="crayon-e">remove</span><span class="crayon-sy">(</span><span class="crayon-e">size</span><span class="crayon-sy">(</span><span class="crayon-sy">)</span><span class="crayon-o">-</span><span class="crayon-cn">1</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span><span class="crayon-h"> </span><span class="crayon-sy">}</span></div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-15"><span class="crayon-h"> </span><span class="crayon-i">T</span><span class="crayon-h"> </span><span class="crayon-e">top</span><span class="crayon-sy">(</span><span class="crayon-sy">)</span><span class="crayon-h"> </span><span class="crayon-sy">{</span><span class="crayon-st">return</span><span class="crayon-h"> </span><span class="crayon-r">this</span><span class="crayon-o">-></span><span class="crayon-e">get</span><span class="crayon-sy">(</span><span class="crayon-e">size</span><span class="crayon-sy">(</span><span class="crayon-sy">)</span><span class="crayon-o">-</span><span class="crayon-cn">1</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span><span class="crayon-h"> </span><span class="crayon-sy">}</span></div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-16"> </div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-17"><span class="crayon-sy">}</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-18"> </div><div class="crayon-line" id="crayon-5a5ef9a00125e234174465-19"><span class="crayon-p">#endif</span></div></div></td>
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</table>
</div>
</div><p>stack.cpp</p>
<div id="crayon-5a5ef9a00126b057993386" class="crayon-syntax crayon-theme-classic crayon-font-consolas crayon-os-pc print-yes notranslate" data-settings=" minimize scroll-mouseover disable-anim wrap" style=" margin-top: 12px; margin-bottom: 12px; font-size: 20px !important; line-height: 30px !important;">
<div class="crayon-plain-wrap"><textarea class="crayon-plain print-no" data-settings="dblclick" readonly style="-moz-tab-size:4; -o-tab-size:4; -webkit-tab-size:4; tab-size:4; font-size: 20px !important; line-height: 30px !important;">
#include <iostream>
#include "Stack.h"
using namespace std;
template <typename T>
class MyPrint
{
public:
void operator()(T e)
{
cout << e << " ";
}
};
int main()
{
Stack<int> s;
s.push(4);
s.push(5);
s.push(7);
s.push(8);
s.push(9);
s.push(11);
MyPrint<int> visit;
s.travser(visit);
s.empty();
return 0;
}</textarea></div>
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<table class="crayon-table">
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<div class="crayon-nums-content" style="font-size: 20px !important; line-height: 30px !important;"><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-1">1</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-2">2</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-3">3</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-4">4</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-5">5</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-6">6</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-7">7</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-8">8</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-9">9</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-10">10</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-11">11</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-12">12</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-13">13</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-14">14</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-15">15</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-16">16</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-17">17</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-18">18</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-19">19</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-20">20</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-21">21</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-22">22</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-23">23</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-24">24</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-25">25</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-26">26</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-27">27</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-28">28</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-29">29</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-30">30</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-31">31</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-32">32</div><div class="crayon-num" data-line="crayon-5a5ef9a00126b057993386-33">33</div></div>
</td>
<td class="crayon-code"><div class="crayon-pre" style="font-size: 20px !important; line-height: 30px !important; -moz-tab-size:4; -o-tab-size:4; -webkit-tab-size:4; tab-size:4;"><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-1"><span class="crayon-p">#include <iostream></span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-2"><span class="crayon-p">#include "Stack.h"</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-3"> </div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-4"><span class="crayon-r">using</span><span class="crayon-h"> </span><span class="crayon-t">namespace</span><span class="crayon-h"> </span><span class="crayon-v">std</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-5"> </div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-6"><span class="crayon-t">template</span><span class="crayon-h"> </span><span class="crayon-o"><</span><span class="crayon-r">typename</span><span class="crayon-h"> </span><span class="crayon-e">T</span><span class="crayon-o">></span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-7"><span class="crayon-t">class</span><span class="crayon-h"> </span><span class="crayon-e">MyPrint</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-8"><span class="crayon-sy">{</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-9"><span class="crayon-m">public</span><span class="crayon-o">:</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-10"><span class="crayon-h"> </span><span class="crayon-t">void</span><span class="crayon-h"> </span><span class="crayon-t">operator</span><span class="crayon-sy">(</span><span class="crayon-sy">)</span><span class="crayon-sy">(</span><span class="crayon-i">T</span><span class="crayon-h"> </span><span class="crayon-v">e</span><span class="crayon-sy">)</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-11"><span class="crayon-h"> </span><span class="crayon-sy">{</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-12"><span class="crayon-h"> </span><span class="crayon-r">cout</span><span class="crayon-h"> </span><span class="crayon-o"><<</span><span class="crayon-h"> </span><span class="crayon-v">e</span><span class="crayon-h"> </span><span class="crayon-o"><<</span><span class="crayon-h"> </span><span class="crayon-s">" "</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-13"><span class="crayon-h"> </span><span class="crayon-sy">}</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-14"><span class="crayon-sy">}</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-15"> </div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-16"><span class="crayon-t">int</span><span class="crayon-h"> </span><span class="crayon-e">main</span><span class="crayon-sy">(</span><span class="crayon-sy">)</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-17"><span class="crayon-sy">{</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-18"><span class="crayon-h"> </span><span class="crayon-v">Stack</span><span class="crayon-o"><</span><span class="crayon-t">int</span><span class="crayon-o">></span><span class="crayon-h"> </span><span class="crayon-v">s</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-19"><span class="crayon-h"> </span><span class="crayon-v">s</span><span class="crayon-sy">.</span><span class="crayon-e">push</span><span class="crayon-sy">(</span><span class="crayon-cn">4</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-20"><span class="crayon-h"> </span><span class="crayon-v">s</span><span class="crayon-sy">.</span><span class="crayon-e">push</span><span class="crayon-sy">(</span><span class="crayon-cn">5</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-21"><span class="crayon-h"> </span><span class="crayon-v">s</span><span class="crayon-sy">.</span><span class="crayon-e">push</span><span class="crayon-sy">(</span><span class="crayon-cn">7</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-22"><span class="crayon-h"> </span><span class="crayon-v">s</span><span class="crayon-sy">.</span><span class="crayon-e">push</span><span class="crayon-sy">(</span><span class="crayon-cn">8</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-23"><span class="crayon-h"> </span><span class="crayon-v">s</span><span class="crayon-sy">.</span><span class="crayon-e">push</span><span class="crayon-sy">(</span><span class="crayon-cn">9</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-24"><span class="crayon-h"> </span><span class="crayon-v">s</span><span class="crayon-sy">.</span><span class="crayon-e">push</span><span class="crayon-sy">(</span><span class="crayon-cn">11</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-25"> </div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-26"><span class="crayon-h"> </span><span class="crayon-v">MyPrint</span><span class="crayon-o"><</span><span class="crayon-t">int</span><span class="crayon-o">></span><span class="crayon-h"> </span><span class="crayon-v">visit</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-27"> </div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-28"><span class="crayon-h"> </span><span class="crayon-v">s</span><span class="crayon-sy">.</span><span class="crayon-e">travser</span><span class="crayon-sy">(</span><span class="crayon-v">visit</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-29"> </div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-30"><span class="crayon-h"> </span><span class="crayon-v">s</span><span class="crayon-sy">.</span><span class="crayon-e">empty</span><span class="crayon-sy">(</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-31"> </div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-32"><span class="crayon-h"> </span><span class="crayon-st">return</span><span class="crayon-h"> </span><span class="crayon-cn">0</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a00126b057993386-33"><span class="crayon-sy">}</span></div></div></td>
</tr>
</table>
</div>
</div><p></p>
<h3 id="队列（Queue）">队列（Queue）</h3>
<p>从List派生而来，目前没有检查有效性，因此队列为空时队首和队尾元素未知，队列为空时出队操作会带来错误。</p>
<p>新增接口有入队、出队和返回队首或队尾元素。</p>
<h4 id="C++实现">C++实现</h4>
<p>queue.h</p>
<div id="crayon-5a5ef9a001272568595981" class="crayon-syntax crayon-theme-classic crayon-font-consolas crayon-os-pc print-yes notranslate" data-settings=" minimize scroll-mouseover disable-anim wrap" style=" margin-top: 12px; margin-bottom: 12px; font-size: 20px !important; line-height: 30px !important;">
<div class="crayon-plain-wrap"><textarea class="crayon-plain print-no" data-settings="dblclick" readonly style="-moz-tab-size:4; -o-tab-size:4; -webkit-tab-size:4; tab-size:4; font-size: 20px !important; line-height: 30px !important;">
#ifndef MY_QUEUE_H
#define MY_QUEUE_H
#include "List.h"
template <typename T>
class Queue : public List<T>
{
public:
void enqueue(T const & e) { this->insertAsLast(e); }
T rear() { return this->last()->data; }
T dequeue() { return this->remove(this->first()); }
T front() { return this->first->data; }
};
#endif</textarea></div>
<div class="crayon-main" style="">
<table class="crayon-table">
<tr class="crayon-row">
<td class="crayon-nums " data-settings="show">
<div class="crayon-nums-content" style="font-size: 20px !important; line-height: 30px !important;"><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-1">1</div><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-2">2</div><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-3">3</div><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-4">4</div><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-5">5</div><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-6">6</div><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-7">7</div><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-8">8</div><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-9">9</div><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-10">10</div><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-11">11</div><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-12">12</div><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-13">13</div><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-14">14</div><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-15">15</div><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-16">16</div><div class="crayon-num" data-line="crayon-5a5ef9a001272568595981-17">17</div></div>
</td>
<td class="crayon-code"><div class="crayon-pre" style="font-size: 20px !important; line-height: 30px !important; -moz-tab-size:4; -o-tab-size:4; -webkit-tab-size:4; tab-size:4;"><div class="crayon-line" id="crayon-5a5ef9a001272568595981-1"><span class="crayon-p">#ifndef MY_QUEUE_H</span></div><div class="crayon-line" id="crayon-5a5ef9a001272568595981-2"><span class="crayon-p">#define MY_QUEUE_H</span></div><div class="crayon-line" id="crayon-5a5ef9a001272568595981-3"> </div><div class="crayon-line" id="crayon-5a5ef9a001272568595981-4"><span class="crayon-p">#include "List.h"</span></div><div class="crayon-line" id="crayon-5a5ef9a001272568595981-5"> </div><div class="crayon-line" id="crayon-5a5ef9a001272568595981-6"><span class="crayon-t">template</span><span class="crayon-h"> </span><span class="crayon-o"><</span><span class="crayon-r">typename</span><span class="crayon-h"> </span><span class="crayon-v">T</span><span class="crayon-o">></span></div><div class="crayon-line" id="crayon-5a5ef9a001272568595981-7"><span class="crayon-t">class</span><span class="crayon-h"> </span><span class="crayon-v">Queue</span><span class="crayon-h"> </span><span class="crayon-o">:</span><span class="crayon-h"> </span><span class="crayon-m">public</span><span class="crayon-h"> </span><span class="crayon-e">List</span><span class="crayon-o"><</span><span class="crayon-e">T</span><span class="crayon-o">></span></div><div class="crayon-line" id="crayon-5a5ef9a001272568595981-8"><span class="crayon-sy">{</span></div><div class="crayon-line" id="crayon-5a5ef9a001272568595981-9"><span class="crayon-m">public</span><span class="crayon-o">:</span></div><div class="crayon-line" id="crayon-5a5ef9a001272568595981-10"><span class="crayon-h"> </span><span class="crayon-t">void</span><span class="crayon-h"> </span><span class="crayon-e">enqueue</span><span class="crayon-sy">(</span><span class="crayon-i">T</span><span class="crayon-h"> </span><span class="crayon-m">const</span><span class="crayon-h"> </span><span class="crayon-o">&</span><span class="crayon-h"> </span><span class="crayon-v">e</span><span class="crayon-sy">)</span><span class="crayon-h"> </span><span class="crayon-sy">{</span><span class="crayon-h"> </span><span class="crayon-r">this</span><span class="crayon-o">-></span><span class="crayon-e">insertAsLast</span><span class="crayon-sy">(</span><span class="crayon-v">e</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span><span class="crayon-h"> </span><span class="crayon-sy">}</span></div><div class="crayon-line" id="crayon-5a5ef9a001272568595981-11"><span class="crayon-h"> </span><span class="crayon-i">T</span><span class="crayon-h"> </span><span class="crayon-e">rear</span><span class="crayon-sy">(</span><span class="crayon-sy">)</span><span class="crayon-h"> </span><span class="crayon-sy">{</span><span class="crayon-h"> </span><span class="crayon-st">return</span><span class="crayon-h"> </span><span class="crayon-r">this</span><span class="crayon-o">-></span><span class="crayon-e">last</span><span class="crayon-sy">(</span><span class="crayon-sy">)</span><span class="crayon-o">-></span><span class="crayon-v">data</span><span class="crayon-sy">;</span><span class="crayon-h"> </span><span class="crayon-sy">}</span></div><div class="crayon-line" id="crayon-5a5ef9a001272568595981-12"> </div><div class="crayon-line" id="crayon-5a5ef9a001272568595981-13"><span class="crayon-h"> </span><span class="crayon-i">T</span><span class="crayon-h"> </span><span class="crayon-e">dequeue</span><span class="crayon-sy">(</span><span class="crayon-sy">)</span><span class="crayon-h"> </span><span class="crayon-sy">{</span><span class="crayon-h"> </span><span class="crayon-st">return</span><span class="crayon-h"> </span><span class="crayon-r">this</span><span class="crayon-o">-></span><span class="crayon-e">remove</span><span class="crayon-sy">(</span><span class="crayon-r">this</span><span class="crayon-o">-></span><span class="crayon-e">first</span><span class="crayon-sy">(</span><span class="crayon-sy">)</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span><span class="crayon-h"> </span><span class="crayon-sy">}</span></div><div class="crayon-line" id="crayon-5a5ef9a001272568595981-14"><span class="crayon-h"> </span><span class="crayon-i">T</span><span class="crayon-h"> </span><span class="crayon-e">front</span><span class="crayon-sy">(</span><span class="crayon-sy">)</span><span class="crayon-h"> </span><span class="crayon-sy">{</span><span class="crayon-h"> </span><span class="crayon-st">return</span><span class="crayon-h"> </span><span class="crayon-r">this</span><span class="crayon-o">-></span><span class="crayon-v">first</span><span class="crayon-o">-></span><span class="crayon-v">data</span><span class="crayon-sy">;</span><span class="crayon-h"> </span><span class="crayon-sy">}</span></div><div class="crayon-line" id="crayon-5a5ef9a001272568595981-15"><span class="crayon-sy">}</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a001272568595981-16"> </div><div class="crayon-line" id="crayon-5a5ef9a001272568595981-17"><span class="crayon-p">#endif</span></div></div></td>
</tr>
</table>
</div>
</div><p>queue.cpp</p>
<div id="crayon-5a5ef9a001278484072172" class="crayon-syntax crayon-theme-classic crayon-font-consolas crayon-os-pc print-yes notranslate" data-settings=" minimize scroll-mouseover disable-anim wrap" style=" margin-top: 12px; margin-bottom: 12px; font-size: 20px !important; line-height: 30px !important;">
<div class="crayon-plain-wrap"><textarea class="crayon-plain print-no" data-settings="dblclick" readonly style="-moz-tab-size:4; -o-tab-size:4; -webkit-tab-size:4; tab-size:4; font-size: 20px !important; line-height: 30px !important;">
#include "Queue.h"
#include <iostream>
using namespace std;
template <typename T>
class MyPrint
{
public:
void operator()(T e)
{
cout << e << " ";
}
};
int main()
{
Queue<int> q;
q.enqueue(4);
q.enqueue(5);
q.enqueue(6);
q.enqueue(7);
q.enqueue(8);
q.enqueue(9);
MyPrint<int> visit;
q.travser(visit);
cout << endl << q.dequeue() << endl;
q.travser(visit);
return 0;
}</textarea></div>
<div class="crayon-main" style="">
<table class="crayon-table">
<tr class="crayon-row">
<td class="crayon-nums " data-settings="show">
<div class="crayon-nums-content" style="font-size: 20px !important; line-height: 30px !important;"><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-1">1</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-2">2</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-3">3</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-4">4</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-5">5</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-6">6</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-7">7</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-8">8</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-9">9</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-10">10</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-11">11</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-12">12</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-13">13</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-14">14</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-15">15</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-16">16</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-17">17</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-18">18</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-19">19</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-20">20</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-21">21</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-22">22</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-23">23</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-24">24</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-25">25</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-26">26</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-27">27</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-28">28</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-29">29</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-30">30</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-31">31</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-32">32</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-33">33</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-34">34</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-35">35</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-36">36</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-37">37</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-38">38</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-39">39</div><div class="crayon-num" data-line="crayon-5a5ef9a001278484072172-40">40</div></div>
</td>
<td class="crayon-code"><div class="crayon-pre" style="font-size: 20px !important; line-height: 30px !important; -moz-tab-size:4; -o-tab-size:4; -webkit-tab-size:4; tab-size:4;"><div class="crayon-line" id="crayon-5a5ef9a001278484072172-1"><span class="crayon-p">#include "Queue.h"</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-2"> </div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-3"><span class="crayon-p">#include <iostream></span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-4"> </div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-5"><span class="crayon-r">using</span><span class="crayon-h"> </span><span class="crayon-t">namespace</span><span class="crayon-h"> </span><span class="crayon-v">std</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-6"> </div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-7"> </div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-8"> </div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-9"><span class="crayon-t">template</span><span class="crayon-h"> </span><span class="crayon-o"><</span><span class="crayon-r">typename</span><span class="crayon-h"> </span><span class="crayon-e">T</span><span class="crayon-o">></span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-10"><span class="crayon-t">class</span><span class="crayon-h"> </span><span class="crayon-e">MyPrint</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-11"><span class="crayon-sy">{</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-12"><span class="crayon-m">public</span><span class="crayon-o">:</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-13"><span class="crayon-h"> </span><span class="crayon-t">void</span><span class="crayon-h"> </span><span class="crayon-t">operator</span><span class="crayon-sy">(</span><span class="crayon-sy">)</span><span class="crayon-sy">(</span><span class="crayon-i">T</span><span class="crayon-h"> </span><span class="crayon-v">e</span><span class="crayon-sy">)</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-14"><span class="crayon-h"> </span><span class="crayon-sy">{</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-15"><span class="crayon-h"> </span><span class="crayon-r">cout</span><span class="crayon-h"> </span><span class="crayon-o"><<</span><span class="crayon-h"> </span><span class="crayon-v">e</span><span class="crayon-h"> </span><span class="crayon-o"><<</span><span class="crayon-h"> </span><span class="crayon-s">" "</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-16"><span class="crayon-h"> </span><span class="crayon-sy">}</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-17"><span class="crayon-sy">}</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-18"> </div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-19"><span class="crayon-t">int</span><span class="crayon-h"> </span><span class="crayon-e">main</span><span class="crayon-sy">(</span><span class="crayon-sy">)</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-20"><span class="crayon-sy">{</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-21"><span class="crayon-h"> </span><span class="crayon-v">Queue</span><span class="crayon-o"><</span><span class="crayon-t">int</span><span class="crayon-o">></span><span class="crayon-h"> </span><span class="crayon-v">q</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-22"><span class="crayon-h"> </span><span class="crayon-v">q</span><span class="crayon-sy">.</span><span class="crayon-e">enqueue</span><span class="crayon-sy">(</span><span class="crayon-cn">4</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-23"><span class="crayon-h"> </span><span class="crayon-v">q</span><span class="crayon-sy">.</span><span class="crayon-e">enqueue</span><span class="crayon-sy">(</span><span class="crayon-cn">5</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-24"><span class="crayon-h"> </span><span class="crayon-v">q</span><span class="crayon-sy">.</span><span class="crayon-e">enqueue</span><span class="crayon-sy">(</span><span class="crayon-cn">6</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-25"><span class="crayon-h"> </span><span class="crayon-v">q</span><span class="crayon-sy">.</span><span class="crayon-e">enqueue</span><span class="crayon-sy">(</span><span class="crayon-cn">7</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-26"><span class="crayon-h"> </span><span class="crayon-v">q</span><span class="crayon-sy">.</span><span class="crayon-e">enqueue</span><span class="crayon-sy">(</span><span class="crayon-cn">8</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-27"><span class="crayon-h"> </span><span class="crayon-v">q</span><span class="crayon-sy">.</span><span class="crayon-e">enqueue</span><span class="crayon-sy">(</span><span class="crayon-cn">9</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-28"> </div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-29"><span class="crayon-h"> </span><span class="crayon-v">MyPrint</span><span class="crayon-o"><</span><span class="crayon-t">int</span><span class="crayon-o">></span><span class="crayon-h"> </span><span class="crayon-v">visit</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-30"> </div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-31"><span class="crayon-h"> </span><span class="crayon-v">q</span><span class="crayon-sy">.</span><span class="crayon-e">travser</span><span class="crayon-sy">(</span><span class="crayon-v">visit</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-32"> </div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-33"><span class="crayon-h"> </span><span class="crayon-r">cout</span><span class="crayon-h"> </span><span class="crayon-o"><<</span><span class="crayon-h"> </span><span class="crayon-v">endl</span><span class="crayon-h"> </span><span class="crayon-o"><<</span><span class="crayon-h"> </span><span class="crayon-v">q</span><span class="crayon-sy">.</span><span class="crayon-e">dequeue</span><span class="crayon-sy">(</span><span class="crayon-sy">)</span><span class="crayon-h"> </span><span class="crayon-o"><<</span><span class="crayon-h"> </span><span class="crayon-v">endl</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-34"> </div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-35"> </div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-36"><span class="crayon-h"> </span><span class="crayon-v">q</span><span class="crayon-sy">.</span><span class="crayon-e">travser</span><span class="crayon-sy">(</span><span class="crayon-v">visit</span><span class="crayon-sy">)</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-37"> </div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-38"> </div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-39"><span class="crayon-h"> </span><span class="crayon-st">return</span><span class="crayon-h"> </span><span class="crayon-cn">0</span><span class="crayon-sy">;</span></div><div class="crayon-line" id="crayon-5a5ef9a001278484072172-40"><span class="crayon-sy">}</span></div></div></td>
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