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<title>第五章 数组和广义表 </title>
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<p class=MsoNormal style='text-indent:128.0pt;mso-char-indent-count:8.0;
mso-char-indent-size:16.0pt'><span style='font-size:16.0pt;mso-bidi-font-size:
10.0pt;font-family:宋体;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;
mso-bidi-font-family:Arial'>第五章</span><span style='font-size:16.0pt;mso-bidi-font-size:
10.0pt;font-family:Arial'> </span><span style='font-size:16.0pt;mso-bidi-font-size:
10.0pt;font-family:宋体;mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;
mso-bidi-font-family:Arial'>数组和广义表</span><span lang=EN-US style='font-size:
16.0pt;mso-bidi-font-size:10.0pt;font-family:Arial'> <o:p></o:p></span></p>
<p style='mso-outline-level:1'><span lang=EN-US style='mso-bidi-font-size:10.0pt;
font-family:"Times New Roman"'>5.18 <o:p></o:p></span></p>
<p><span lang=EN-US style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>void
RSh(int A[n],int k)//</span><span style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>把数组</span><span
lang=EN-US style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>A</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>的元素循环右移</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>k</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>位</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>,</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>只用一个辅助存储空间</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'><br>
{<br>
for(i=1;i<=k;i++)<br>
if(n%i==0&&k%i==0) p=i;//</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>求</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>n</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>和</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>k</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>的最大公约数</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>p<br>
for(i=0;i<p;i++) <br>
{<br>
j=i;l=(i+k)%n;temp=A[i];<br>
while(l!=i)<br>
{<br>
A[j]=temp;<br>
temp=A[l];<br>
A[l]=A[j];<br>
j=l;l=(j+k)%n;<br>
}// </span><span style='mso-bidi-font-size:10.0pt;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>循环右移一步</span><span
lang=EN-US style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'><br>
A[i]=temp;<br>
}//for<br>
}//RSh<br>
</span><span style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>分析</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>:</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>要把</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>A</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>的元素循环右移</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>k</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>位</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>,</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>则</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>A[0]</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>移至</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>A[k],A[k]</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>移至</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>A[2k]......</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>直到最终回到</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>A[0].</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>然而这并没有全部解决问题</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>,</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>因为有可能有的元素在此过程中始终没有被访问过</span><span
lang=EN-US style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>,</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>而是被跳了过去</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>.</span><span
style='mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>分析可知</span><span lang=EN-US
style='mso-bidi-font-size:10.0pt;font-family:"Times New Roman"'>,</span><span
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