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来自「浙江大学计算机学院数据结构课程的教学课件」· HTM 代码 · 共 101 行
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<b>|</b><font face="宋体" size="2">第一章</font><b>|</b><font face="宋体" size="2"><a href="text2-0.htm">第二章</a></font><b>|</b><font face="宋体" size="2"><a href="text3-0.htm">第三章</a></font><b>|</b><font face="宋体" size="2"><a href="text4-0.htm">第四章</a></font><b>|</b><font face="宋体" size="2"><a href="text5-0.htm">第五章</a></font><b>|</b><font face="宋体" size="2"><a href="text6-0.htm">第六章</a></font><b>|</b><font face="宋体" size="2"><a href="text7-0.htm">第七章</a></font><b>|</b><font face="宋体" size="2"><a href="text8-0.htm">第八章</a></font><b>|</b><font face="宋体" size="2"><a href="text9-0.htm">第九章</a></font><b>|</b><font face="宋体" size="2"><a href="text10-0.htm">第十章</a></font><b>|</b><font size="2" face="宋体"><a href="textA-0.htm">算法分析</a><b><font color="#000000">|</font></b>
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<b>|</b><font face="宋体" size="2">第一章</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"><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>
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<p><font face="Arial, Helvetica, sans-serif" color="#000000" size="4"><b><br>
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<pre><font face="Arial, Helvetica, sans-serif" color="#000000" size="4"><b><font size="5" color="#FF0033">•</font> <font color="#0000FF"><i>Iterative summing of a list of numbers</i></font>
float <font color="#ff0033">sum</font>(float list[ ] , int n)
{
float tempsum=0; count++; <font color="#FF0099"> /* for assignment*/ </font>
int i;
for ( i=0; i < n; i++) {
count ++; <font color="#FF0099"> / * for the for loop */ </font>
tempsum +=list[ i ]; count ++; <font color="#FF0099"> / * for assignment */</font>
}
count ++; <font color="#FF0099"> /* last execution of for*/</font>
count ++; <font color="#FF0099"> /* for return*/</font>
return tempsum;
}
float <font color="#ff0033">sum</font>(float list[ ] , int n) <font color="#FF0099"> /*simplified version*/</font>
{
float tempsum=0;
int i;
for ( i=0; i < n; i++)
count += 2;
count += 3;
return 0;
}
<font color="#ff0033" size="5">count = 2n + 3</font>
</b></font></pre>
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<pre><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b><font color="#0033CC"> Statement</font></b></font></pre>
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<pre><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> <font color="#0000FF">s / e Frequency Total steps</font></b></font></pre>
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<pre><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b>float <font color="#FF0033">sum</font>(float list[ ] , int n)<br></b></font><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> {</b></font><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> <br> float tempsum=0;<br></b></font><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> int i;<br></b></font><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> for ( i=0; i < n; i++)<br></b></font><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> tempsum +=list[ i ];<br></b></font><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> return tempsum;<br></b></font><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> } </b></font></pre>
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<pre><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> 0 0 0 <br></b></font><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> 0 0 0 <br></b></font><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> 1 1 1<br></b></font><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> 0 0 0<br></b></font><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> 1 n+1 n+1<br></b></font><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> 1 n n <br></b></font><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> 1 1 1 <br></b></font><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> 0 0 0 </b></font></pre>
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<pre><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> Total </b></font></pre>
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<pre><font face="Arial, Helvetica, sans-serif" color="#000000" size="3"><b> <font color="#FF0033">2n+3</font></b></font></pre>
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<pre><font face="Arial, Helvetica, sans-serif" color="#000000" size="4"><b> </b></font></pre>
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