no66.htm

常用经典算法及讲解

yes">&nbsp;&nbsp; </span>2<span style="mso-spacerun: yes">&nbsp;&nbsp;
</span>33<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>18<span
style="mso-spacerun: yes">&nbsp;&nbsp; </span>43<span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp; </span>4<span style="mso-spacerun: yes">&nbsp;&nbsp;
</span>35<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>20<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp; </span>16<span style="mso-spacerun:
yes">&nbsp; </span>31<span style="mso-spacerun: yes">&nbsp;&nbsp;
</span>64<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>53<span
style="mso-spacerun: yes">&nbsp;&nbsp; </span>38<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>59<span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;
</span>6<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>45<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;&nbsp; </span>1<span style="mso-spacerun:
yes">&nbsp; </span>40<span style="mso-spacerun: yes">&nbsp;&nbsp;
</span>61<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>58<span
style="mso-spacerun: yes">&nbsp;&nbsp; </span>63<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>52<span style="mso-spacerun: yes">&nbsp;&nbsp;
</span>21<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>36<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp; </span>30<span style="mso-spacerun:
yes">&nbsp; </span>15<span style="mso-spacerun: yes">&nbsp;&nbsp;
</span>54<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>39<span
style="mso-spacerun: yes">&nbsp;&nbsp; </span>60<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>37<span style="mso-spacerun: yes">&nbsp;&nbsp;
</span>46<span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span>7<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp; </span>55<span style="mso-spacerun:
yes">&nbsp; </span>12<span style="mso-spacerun: yes">&nbsp;&nbsp;
</span>57<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>62<span
style="mso-spacerun: yes">&nbsp;&nbsp; </span>51<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>48<span style="mso-spacerun: yes">&nbsp;&nbsp;
</span>25<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>22<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp; </span>14<span style="mso-spacerun:
yes">&nbsp; </span>29<span style="mso-spacerun: yes">&nbsp;&nbsp;
</span>10<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>49<span
style="mso-spacerun: yes">&nbsp;&nbsp; </span>24 <span style="mso-spacerun:
yes">&nbsp;&nbsp;</span>27<span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;
</span>8<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>47<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp; </span>11<span style="mso-spacerun:
yes">&nbsp; </span>56<span style="mso-spacerun: yes">&nbsp;&nbsp;
</span>13<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>28<span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span>9<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>50<span style="mso-spacerun: yes">&nbsp;&nbsp;
</span>23<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>26<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><b
style='mso-bidi-font-weight:normal'><span lang=EN-US style='font-size:12.0pt;
mso-bidi-font-size:10.0pt'>17. ( ex 6_32 p.201 <span style="mso-spacerun:
yes">&nbsp;</span>选择排序，利用递归实现 )<o:p></o:p></span></b></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>void select(int
a[],int begin,int n)<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>{int i,t,min;<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>min=begin;<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>for (i=begin+1;i&lt;n;i++)<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;&nbsp; </span>if(a[i]&lt;a[min])<span
style="mso-spacerun: yes">&nbsp; </span>min=i;<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>t=a[begin]; a[begin]=a[min]; a[min]=t;<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>if (begin&lt;n-1)<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;&nbsp; </span>select(a,begin+1,n);<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>}<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>main()<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>{int
a[10]={5,6,7,99,1,2,0,45,21,-97};<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>int i,n=10;<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>for(i=0;i&lt;=n-1;i++)<span
style="mso-spacerun: yes">&nbsp; </span><span style="mso-spacerun:
yes">&nbsp;</span>printf(&quot;%5d &quot;,a[i]);<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>printf(&quot;\n&quot;);<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>select(a,0,n);<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>for(i=0;i&lt;=n-1;i++)<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span><span style="mso-spacerun: yes">&nbsp;
</span>printf(&quot;%5d &quot;,a[i]);<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>printf(&quot;\n&quot;);<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>}<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><b
style='mso-bidi-font-weight:normal'><span lang=EN-US style='font-size:12.0pt;
mso-bidi-font-size:10.0pt'>18.( ex 6_25 p.202<span style="mso-spacerun:
yes">&nbsp; </span>二分查找，递归方法 )<o:p></o:p></span></b></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>void
binsearch(int b[],int x,int low,int high)<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>{int mid;<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>if (low&gt;high)<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp; </span>{printf(&quot;\n%d dosn't exists in the
array!\n&quot;,x);<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;&nbsp; </span>exit(0);<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp; </span>}<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>mid=(low+high)/2;<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>if(x==b[mid])<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;&nbsp; </span>{printf(&quot;OK!
b[%d]=%d\n&quot;,mid,x);<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span>exit(0);<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;&nbsp; </span>}<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>if(x&gt;b[mid])<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;&nbsp; </span>binsearch(b,x,mid+1,high);<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>else<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;&nbsp; </span>binsearch(b,x,mid,high-1);<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>}<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>main()<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>{int
a[10]={2,3,4,5,7,10,20,40,50,100};<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>int key,n=10;;<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>printf(&quot;input a number for
search:\n&quot;);<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>scanf(&quot;%d&quot;,&amp;key);<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><span
style="mso-spacerun: yes">&nbsp;</span>binsearch(a,key,0,n-1);<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly'><span
lang=EN-US style='font-size:12.0pt;mso-bidi-font-size:10.0pt'>}<o:p></o:p></span></p>

<p class=MsoPlainText style='line-height:18.0pt;mso-line-height-rule:exactly;
layout-grid-mode:char;mso-layout-grid-align:none'><span lang=EN-US
style='font-size:12.0pt;mso-bidi-font-size:10.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>

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