klarkxy/hustoj
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
aceaaeb27215be26ade6a73ee1d13970b5344668
hustoj/web/cppreference-zh/chmhelp/cpp-algorithm-make_heap.html
klarkxy 196e706fe4 上传cppreference
2025-08-01 12:57:54 +08:00

263 lines
23 KiB
HTML
Raw Blame History

<!DOCTYPE html>
<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
<head><meta http-equiv="x-ua-compatible" content="ie=edge">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>std::make_heap</title>
<link rel="stylesheet" href="ext.css" />
<link rel="stylesheet" href="site_modules.css" />
</head>
<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_algorithm_make_heap skin-cppreference2 action-view cpp-navbar">
<div id="cpp-content-base">
<div id="content"><a id="top"></a>
<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::</span>make_heap</h1>
<div id="bodyContent">
<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-algorithm.html">algorithm</a></span></div>
<div id="mw-content-text" lang="zh" dir="ltr" class="mw-content-ltr" xml:lang="zh">
<table class="t-dcl-begin">
<tbody>
<tr class="t-dsc-header">
<td>
<div>&#23450;&#20041;&#20110;&#22836;&#25991;&#20214; <code><a href="cpp-header-algorithm.html">&lt;algorithm&gt;</a></code></div>
</td>
<td></td>
<td></td>
</tr>
</tbody>
<tbody class="t-dcl-rev t-dcl-rev-num">
<tr class="t-dcl-rev-aux">
<td></td>
<td rowspan="142">(1)</td>
<td></td>
</tr>
<tr class="t-dcl t-until-cxx20">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> RandomIt <span class="sy1">&gt;</span><br />
<span class="kw4">void</span> make_heap<span class="br0">(</span> RandomIt first, RandomIt last <span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td class="t-dcl-nopad"></td>
<td><span class="t-mark-rev t-until-cxx20">(C++20 &#21069;)</span></td>
</tr>
<tr class="t-dcl t-since-cxx20">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> RandomIt <span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">void</span> make_heap<span class="br0">(</span> RandomIt first, RandomIt last <span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td class="t-dcl-nopad"></td>
<td><span class="t-mark-rev t-since-cxx20">(C++20 &#36215;)</span></td>
</tr>
</tbody>
<tbody></tbody>
<tbody class="t-dcl-rev t-dcl-rev-num">
<tr class="t-dcl-rev-aux">
<td></td>
<td rowspan="142">(2)</td>
<td></td>
</tr>
<tr class="t-dcl t-until-cxx20">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> RandomIt, <span class="kw1">class</span> Compare <span class="sy1">&gt;</span><br /></span>
<p><span class="kw4">void</span> make_heap<span class="br0">(</span> RandomIt first, RandomIt last,<br /></p>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Compare comp <span class="br0">)</span><span class="sy4">;</span></div>
</td>
<td class="t-dcl-nopad"></td>
<td><span class="t-mark-rev t-until-cxx20">(C++20 &#21069;)</span></td>
</tr>
<tr class="t-dcl t-since-cxx20">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> RandomIt, <span class="kw1">class</span> Compare <span class="sy1">&gt;</span><br /></span>
<p><span class="kw4">constexpr</span> <span class="kw4">void</span> make_heap<span class="br0">(</span> RandomIt first, RandomIt last,<br /></p>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Compare comp <span class="br0">)</span><span class="sy4">;</span></div>
</td>
<td class="t-dcl-nopad"></td>
<td><span class="t-mark-rev t-since-cxx20">(C++20 &#36215;)</span></td>
</tr>
</tbody>
<tbody>
<tr class="t-dcl-sep">
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>
<p>&#22312;&#33539;&#22260; <code>[first, last)</code> &#20013;&#26500;&#36896;<i>&#26368;&#22823;&#22534;</i>&#12290;&#20989;&#25968;&#31532;&#19968;&#29256;&#26412;&#29992; <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy1">&lt;</span></span></span> &#27604;&#36739;&#20803;&#32032;&#65292;&#31532;&#20108;&#29256;&#26412;&#29992;&#32473;&#23450;&#30340;&#27604;&#36739;&#20989;&#25968; <code>comp</code> &#12290;</p>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">&#21442;&#25968;</span></h3>
<table class="t-par-begin">
<tr class="t-par">
<td>first, last</td>
<td>-</td>
<td>&#21046;&#20316;&#22534;&#26469;&#28304;&#30340;&#20803;&#32032;&#33539;&#22260;</td>
</tr>
<tr class="t-par">
<td>comp</td>
<td>-</td>
<td>&#27604;&#36739;&#20989;&#25968;&#23545;&#35937;&#65288;&#21363;&#28385;&#36275;<a href="cpp-named_req-Compare.html"><span style="font-style:italic">&#27604;&#36739;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(Compare)</span></a> &#35201;&#27714;&#30340;&#23545;&#35937;&#65289;&#65292;&#33509;&#39318;&#20010;&#21442;&#25968;<i>&#23567;&#20110;</i>&#31532;&#20108;&#20010;&#65292;&#21017;&#36820;&#22238; &#8203;<span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> &#12290;<br />
<p>&#27604;&#36739;&#20989;&#25968;&#30340;&#31614;&#21517;&#24212;&#31561;&#20215;&#20110;&#22914;&#19979;&#65306;</p>
<p><span class="t-cc"><span class="mw-geshi cpp source-cpp">&nbsp;<span class="kw4">bool</span> cmp<span class="br0">(</span><span class="kw4">const</span> Type1 <span class="sy3">&amp;</span>a, <span class="kw4">const</span> Type2 <span class="sy3">&amp;</span>b<span class="br0">)</span><span class="sy4">;</span></span></span></p>
<p>&#34429;&#28982;&#31614;&#21517;&#19981;&#24517;&#26377; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">const</span> <span class="sy3">&amp;</span></span></span> &#65292;&#20989;&#25968;&#20063;&#19981;&#33021;&#20462;&#25913;&#20256;&#36882;&#32473;&#23427;&#30340;&#23545;&#35937;&#65292;&#32780;&#19988;&#24517;&#39035;&#25509;&#21463;&#65288;&#21487;&#20026; const &#30340;&#65289;&#31867;&#22411; <code>Type1</code> &#19982; <code>Type2</code> &#30340;&#20540;&#65292;&#26080;&#20851;&#20046;<a href="cpp-language-value_category.html">&#20540;&#31867;&#21035;</a>&#65288;&#20174;&#32780;&#19981;&#20801;&#35768; <span class="t-c"><span class="mw-geshi cpp source-cpp">Type1 <span class="sy3">&amp;</span></span></span> <span class="t-rev-inl t-since-cxx11"><span>&#65292;&#20134;&#19981;&#20801;&#35768; <span class="t-c"><span class="mw-geshi cpp source-cpp">Type1</span></span> &#65292;&#38500;&#38750; <code>Type1</code> &#30340;&#31227;&#21160;&#31561;&#20215;&#20110;&#22797;&#21046;</span> <span><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span></span></span>&#65289;&#12290;<br />
&#31867;&#22411; <span class="t-c"><span class="mw-geshi cpp source-cpp">Type1</span></span> &#19982; <span class="t-c"><span class="mw-geshi cpp source-cpp">Type2</span></span> &#24517;&#39035;&#20351;&#24471; <span class="t-c"><span class="mw-geshi cpp source-cpp">RandomIt</span></span> &#31867;&#22411;&#30340;&#23545;&#35937;&#33021;&#22312;&#35299;&#24341;&#29992;&#21518;&#38544;&#24335;&#36716;&#25442;&#21040;&#36825;&#20004;&#20010;&#31867;&#22411;&#12290; &#8203;</p>
</td>
</tr>
<tr class="t-par-hitem">
<td colspan="3">&#31867;&#22411;&#35201;&#27714;</td>
</tr>
<tr class="t-par-req">
<td colspan="3">-
<div class="spacer"></div>
<code>RandomIt</code> &#24517;&#39035;&#28385;&#36275;<a href="cpp-named_req-RandomAccessIterator.html"><span style="font-style:italic">&#32769;&#24335;&#38543;&#26426;&#35775;&#38382;&#36845;&#20195;&#22120;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(LegacyRandomAccessIterator)</span></a> &#30340;&#35201;&#27714;&#12290;</td>
</tr>
<tr class="t-par-req">
<td colspan="3">-
<div class="spacer"></div>
&#35299;&#24341;&#29992; <code>RandomIt</code> &#32467;&#26524;&#30340;&#31867;&#22411;&#24517;&#39035;&#28385;&#36275;<a href="cpp-named_req-MoveAssignable.html"><span style="font-style:italic">&#21487;&#31227;&#21160;&#36171;&#20540;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(MoveAssignable)</span></a> &#21644;<a href="cpp-named_req-MoveConstructible.html"><span style="font-style:italic">&#21487;&#31227;&#21160;&#26500;&#36896;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(MoveConstructible)</span></a> &#30340;&#35201;&#27714;&#12290;</td>
</tr>
</table>
<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">&#36820;&#22238;&#20540;</span></h3>
<p>&#65288;&#26080;&#65289;</p>
<h3><span class="mw-headline" id=".E5.A4.8D.E6.9D.82.E5.BA.A6">&#22797;&#26434;&#24230;</span></h3>
<p>&#33267;&#22810; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">3</span><span class="sy2">*</span><a href="cpp-iterator-distance.html"><span class="kw673">std::<span class="me2">distance</span></span></a><span class="br0">(</span>first, last<span class="br0">)</span></span></span> &#27425;&#27604;&#36739;&#12290;</p>
<h3><span class="mw-headline" id=".E6.B3.A8.E6.84.8F">&#27880;&#24847;</span></h3>
<p><i>&#26368;&#22823;&#22534;</i>&#26159;&#25317;&#26377;&#19979;&#21015;&#23646;&#24615;&#30340;&#20803;&#32032;&#33539;&#22260; <code>[f,l)</code> &#65306;</p>
<dl>
<dd>
<ul>
<li>&#35774; <code>N = l - f</code> &#65292;&#23545;&#20110;&#25152;&#26377; <code>0 &lt; i &lt; N</code> &#65292; <code>f[floor(<span class="t-mfrac"></span></code>
<table>
<tr>
<td>i-1</td>
</tr>
<tr>
<td>2</td>
</tr>
</table>
<code>)]</code> &#19981;&#23567;&#20110; <code>f[i]</code> &#12290;</li>
<li>&#21487;&#29992; <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-algorithm-push_heap.html"><span class="kw1636">std::<span class="me2">push_heap</span></span></a><span class="br0">(</span><span class="br0">)</span></span></span> &#28155;&#21152;&#26032;&#20803;&#32032;&#12290;</li>
<li>&#21487;&#29992; <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-algorithm-pop_heap.html"><span class="kw1637">std::<span class="me2">pop_heap</span></span></a><span class="br0">(</span><span class="br0">)</span></span></span> &#31227;&#38500;&#39318;&#20803;&#32032;&#12290;</li>
</ul>
</dd>
</dl>
<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">&#31034;&#20363;</span></h3>
<div class="t-example">
<div class="t-example-live-link"></div>
<div dir="ltr" class="mw-geshi" style="text-align: left;">
<div class="cpp source-cpp">
<pre class="de1"><span class="co2">#include &lt;iostream&gt;</span>
<span class="co2">#include &lt;algorithm&gt;</span>
<span class="co2">#include &lt;functional&gt;</span>
<span class="co2">#include &lt;vector&gt;</span>
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;Max heap:<span class="es1">\n</span>&quot;</span><span class="sy4">;</span>
<a href="cpp-container-vector.html"><span class="kw1269">std::<span class="me2">vector</span></span></a><span class="sy1">&lt;</span><span class="kw4">int</span><span class="sy1">&gt;</span> v <span class="br0">{</span> <span class="nu0">3</span>, <span class="nu0">2</span>, <span class="nu0">4</span>, <span class="nu0">1</span>, <span class="nu0">5</span>, <span class="nu0">9</span> <span class="br0">}</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;initially, v: &quot;</span><span class="sy4">;</span>
<span class="kw1">for</span> <span class="br0">(</span><span class="kw4">auto</span> i <span class="sy4">:</span> v<span class="br0">)</span> <a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> i <span class="sy1">&lt;&lt;</span> <span class="st0">&#39; &#39;</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
std<span class="sy4">::</span><span class="me2">make_heap</span><span class="br0">(</span>v.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span>, v.<span class="me1">end</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;after make_heap, v: &quot;</span><span class="sy4">;</span>
<span class="kw1">for</span> <span class="br0">(</span><span class="kw4">auto</span> i <span class="sy4">:</span> v<span class="br0">)</span> <a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> i <span class="sy1">&lt;&lt;</span> <span class="st0">&#39; &#39;</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<a href="cpp-algorithm-pop_heap.html"><span class="kw1637">std::<span class="me2">pop_heap</span></span></a><span class="br0">(</span>v.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span>, v.<span class="me1">end</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;after pop_heap, v: &quot;</span><span class="sy4">;</span>
<span class="kw1">for</span> <span class="br0">(</span><span class="kw4">auto</span> i <span class="sy4">:</span> v<span class="br0">)</span> <a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> i <span class="sy1">&lt;&lt;</span> <span class="st0">&#39; &#39;</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<span class="kw4">auto</span> top <span class="sy1">=</span> v.<span class="me1">back</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
v.<span class="me1">pop_back</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;former top element: &quot;</span> <span class="sy1">&lt;&lt;</span> top <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;after removing the former top element, v: &quot;</span><span class="sy4">;</span>
<span class="kw1">for</span> <span class="br0">(</span><span class="kw4">auto</span> i <span class="sy4">:</span> v<span class="br0">)</span> <a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> i <span class="sy1">&lt;&lt;</span> <span class="st0">&#39; &#39;</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;Min heap:<span class="es1">\n</span>&quot;</span><span class="sy4">;</span>
<a href="cpp-container-vector.html"><span class="kw1269">std::<span class="me2">vector</span></span></a><span class="sy1">&lt;</span><span class="kw4">int</span><span class="sy1">&gt;</span> v1 <span class="br0">{</span> <span class="nu0">3</span>, <span class="nu0">2</span>, <span class="nu0">4</span>, <span class="nu0">1</span>, <span class="nu0">5</span>, <span class="nu0">9</span> <span class="br0">}</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;initially, v1: &quot;</span><span class="sy4">;</span>
<span class="kw1">for</span> <span class="br0">(</span><span class="kw4">auto</span> i <span class="sy4">:</span> v1<span class="br0">)</span> <a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> i <span class="sy1">&lt;&lt;</span> <span class="st0">&#39; &#39;</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
std<span class="sy4">::</span><span class="me2">make_heap</span><span class="br0">(</span>v1.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span>, v1.<span class="me1">end</span><span class="br0">(</span><span class="br0">)</span>, <a href="cpp-utility-functional-greater.html"><span class="kw1037">std::<span class="me2">greater</span></span></a><span class="sy1">&lt;&gt;</span><span class="br0">{</span><span class="br0">}</span><span class="br0">)</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;after make_heap, v1: &quot;</span><span class="sy4">;</span>
<span class="kw1">for</span> <span class="br0">(</span><span class="kw4">auto</span> i <span class="sy4">:</span> v1<span class="br0">)</span> <a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> i <span class="sy1">&lt;&lt;</span> <span class="st0">&#39; &#39;</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<a href="cpp-algorithm-pop_heap.html"><span class="kw1637">std::<span class="me2">pop_heap</span></span></a><span class="br0">(</span>v1.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span>, v1.<span class="me1">end</span><span class="br0">(</span><span class="br0">)</span>, <a href="cpp-utility-functional-greater.html"><span class="kw1037">std::<span class="me2">greater</span></span></a><span class="sy1">&lt;&gt;</span><span class="br0">{</span><span class="br0">}</span><span class="br0">)</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;after pop_heap, v1: &quot;</span><span class="sy4">;</span>
<span class="kw1">for</span> <span class="br0">(</span><span class="kw4">auto</span> i <span class="sy4">:</span> v1<span class="br0">)</span> <a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> i <span class="sy1">&lt;&lt;</span> <span class="st0">&#39; &#39;</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<span class="kw4">auto</span> top1 <span class="sy1">=</span> v1.<span class="me1">back</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
v1.<span class="me1">pop_back</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;former top element: &quot;</span> <span class="sy1">&lt;&lt;</span> top1 <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;after removing the former top element, v1: &quot;</span><span class="sy4">;</span>
<span class="kw1">for</span> <span class="br0">(</span><span class="kw4">auto</span> i <span class="sy4">:</span> v1<span class="br0">)</span> <a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> i <span class="sy1">&lt;&lt;</span> <span class="st0">&#39; &#39;</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1757">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div>
</div>
<p>&#36755;&#20986;&#65306;</p>
<div dir="ltr" class="mw-geshi" style="text-align: left;">
<div class="text source-text">
<pre class="de1">Max heap:
initially, v: 3 2 4 1 5 9
after make_heap, v: 9 5 4 1 2 3
after pop_heap, v: 5 3 4 1 2 9
former top element: 9
after removing the former top element, v: 5 3 4 1 2
Min heap:
initially, v1: 3 2 4 1 5 9
after make_heap, v1: 1 2 4 3 5 9
after pop_heap, v1: 2 3 4 9 5 1
former top element: 1
after removing the former top element, v1: 2 3 4 9 5</pre></div>
</div>
</div>
<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">&#21442;&#38405;</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-algorithm-sort_heap.html"><span class="t-lines"><span>sort_heap</span></span></a></div>
</div>
</td>
<td>&#23558;&#19968;&#20010;&#26368;&#22823;&#22534;&#21464;&#25104;&#19968;&#20010;&#25353;&#21319;&#24207;&#25490;&#24207;&#30340;&#20803;&#32032;&#33539;&#22260;<br />
<span class="t-mark">(&#20989;&#25968;&#27169;&#26495;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-container-priority_queue.html"><span class="t-lines"><span>priority_queue</span></span></a></div>
</div>
</td>
<td>&#36866;&#37197;&#19968;&#20010;&#23481;&#22120;&#20197;&#25552;&#20379;&#20248;&#20808;&#32423;&#38431;&#21015;<br />
<span class="t-mark">(&#31867;&#27169;&#26495;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-utility-functional-greater.html"><span class="t-lines"><span>greater</span></span></a></div>
</div>
</td>
<td>&#23454;&#29616; <span class="t-c"><span class="mw-geshi cpp source-cpp">x <span class="sy1">&gt;</span> y</span></span> &#30340;&#20989;&#25968;&#23545;&#35937;<br />
<span class="t-mark">(&#31867;&#27169;&#26495;)</span></td>
</tr>
</table>
</div>
<div class="visualClear"></div>
</div>
</div>
</div>
</body>
</html>
Reference in New Issue View Git Blame Copy Permalink