partition.html

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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head>  <meta name="generator" content=  "HTML Tidy for Linux/x86 (vers 1 September 2005), see www.w3.org">  <title>partition</title>  <link href="../cppreference.css" rel="stylesheet" type="text/css"></head><body><table>  <tr>  <td>  <div class="body-content">  <div class="header-box">    <a href="../index.html">cppreference.com</a> &gt; <a href=    "index.html">C++ Algorithms</a> &gt; <a href=    "partition.html">partition</a>  </div>  <div class="name-format">    partition  </div>  <div class="syntax-name-format">    Syntax:  </div>  <pre class="syntax-box">  #include &lt;algorithm&gt;  iterator partition( iterator start, iterator end, Predicate p );</pre>  <p>The partition() algorithm re-orders the elements in  [<em>start</em>,<em>end</em>) such that the elements for which the  predicate <em>p</em> returns true come before the elements for which  <em>p</em> returns false.</p>  <p>In other words, partition() uses <em>p</em> to divide the elements  into two groups.</p>  <p>The return value of partition() is an iterator to the first  element for which <em>p</em> returns false.</p>  <p>parition() runs in <a href="../complexity.html">linear  time</a>.</p>  <div class="related-name-format">    Related topics:  </div>  <div class="related-content">    <a href="stable_partition.html">stable_partition</a>  </div>  </div>  </td>    </tr>  </table></body></html>

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