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<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"><a href="../text5/text5-0.htm">第五章</a></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">第七章</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>
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<b><font face="Arial, Helvetica, sans-serif" size="4" color="#000000">〖<font color="#FF0000">example</font>〗
<font color="#0033CC"><i> file </i></font> -- 4500 records (A1, …, A4500 )
<i><font color="#0033CC"> block</font></i> -- 250 records
<i><font color="#0033CC">run</font></i> -- 3 blocks
1. internally sort three blocks at a time (i.e. 750 records ) to
obtain six runs R1 - R6
<img src="image/text7-a11.gif" width="476" height="49">
2. set aside three blocks of internal memory, each capable of
holding 250 records.
<img src="image/text7-a12.gif" width="458" height="141"></font></b></pre>
<pre> <img src="IMAGE/text7-a120.gif" width="257" height="124"> </pre>
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