📄 text5-44.htm
字号:
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<body bgcolor="#FFFFFF" link="#0000FF" vlink="#3399FF" alink="#FF0066">
<div id="Layer1" style="position:absolute; width:711px; height:21px; z-index:1; top: 10px; background-color: #CCCCCC; layer-background-color: #CCCCCC; border: 1px none #000000; left: 26px"><b>|</b><font face="宋体" size="2"><a href="../text1/text1-0.htm">第一章</a></font><b>|</b><font face="宋体" size="2"><a href="../text2/text2-0.htm">第二章</a></font><b>|</b><font face="宋体" size="2"><a href="../text3/text3-0.htm">第三章</a></font><b>|</b><font face="宋体" size="2"><a href="../text4/text4-0.htm">第四章</a></font><b>|</b><font face="宋体" size="2">第五章</font><b>|</b><font face="宋体" size="2"><a href="../text6/text6-0.htm">第六章</a></font><b>|</b><font face="宋体" size="2"><a href="../text7/text7-0.htm">第七章</a></font><b>|</b><font face="宋体" size="2"><a href="../text8/text8-0.htm">第八章</a></font><b>|</b><font face="宋体" size="2"><a href="../text9/text9-0.htm">第九章</a></font><b>|</b><font face="宋体" size="2"><a href="../text10/text10-0.htm">第十章</a></font><b>|</b><font size="2" face="宋体"><a href="../textA/textA-0.htm">算法分析</a><b><font color="#000000">|</font></b>
</font></div>
<pre align="left">
<b><font face="Arial, Helvetica, sans-serif" size="4" color="#000000">(2) <font color="#FF0000">find operation</font> ( for n-1 finds O( <img src="IMAGE/n2.gif" width="21" height="20">) )
int <font color="#FF0000">find1</font>( int i )
{
for ( ; parent [ i] >= 0; i = parent [ i ] )
;
return i;
}
void <font color="#FF0000">union1</font>( int i, int j ) <i><font size="3" color="#CC0099"> /* for n-1 unions O(n) */</font></i>
{
parent [ i ] = j;
}
<i><font size="3" color="#CC0099"> complement is easy, performance characteristics is not good </font></i> O( <img src="IMAGE/n2.gif" width="21" height="20">)
<font color="#FF0000">a forest with p nodes</font></font></b></pre>
<table width="495" cellspacing="0" hspace="50">
<tr>
<td width="284">
<pre><b><font face="Arial, Helvetica, sans-serif" size="4" color="#000000">union (0, 1), find (0)
union (1, 2), find (0)
…
…
union (n-2, n-1), find (0)</font></b></pre>
</td>
<td width="528"><img src="IMAGE/text5-z8.gif" width="39" height="213" align="right"></td>
</tr>
</table>
<p> </p>
<table width="731" cellspacing="0" cellpadding="0">
<tr>
<td width="327"> </td>
<td width="271"><a href="../index.htm"><img width="60" height="25" usemap="#MapMap4" border="0" src="../../images/home.gif"></a><a href="../index.htm"><map name="MapMap4"><area shape="rect" coords="42,-34,88,-15" href="text0.htm"><area shape="rect" coords="4,4,55,23" href="text5-index.htm"></map></a></td>
<td width="131"><font face="楷体_GB2312" size="2"><b><a href="text5-43.htm">上一页</a>
<a href="text5-45.htm">下一页</a> </b></font></td>
</tr>
</table>
<p> </p>
</body>
</html>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -