📄 ds10.2.2.htm
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</span>L.r[0]=L.r[i]； </span><span lang="EN-US" style="mso-bidi-font-size: 10.0pt; font-family: 宋体; mso-hansi-font-family: Times New Roman"><span style="mso-spacerun: yes; font-family: 宋体; mso-hansi-font-family: Times New Roman"> </span>/*
保存待插入元素 */</span><span lang="EN-US" style="font-family:宋体;
mso-hansi-font-family:"Times New Roman""><o:p>
</o:p>
</span></b></span></font></p>
<p class="MsoNormal" style="text-indent: 21.25pt; margin-left: 21.25pt; margin-top: 0; margin-bottom: 0"><font color="#FFFFFF" size="5"><span style="font-family: 宋体; mso-hansi-font-family: Times New Roman"><b><span lang="EN-US">low=1；high=i-1；<span style="mso-spacerun: yes; font-family: 宋体; mso-hansi-font-family: Times New Roman">
</span></span><span lang="EN-US" style="mso-bidi-font-size: 10.0pt; font-family: 宋体; mso-hansi-font-family: Times New Roman">/*
设置初始区间 */</span><span lang="EN-US" style="font-family:宋体;mso-hansi-font-family:
"Times New Roman""><o:p>
</o:p>
</span></b></span></font></p>
<p class="MsoNormal" style="text-indent: 21.25pt; margin-left: 21.25pt; margin-top: 0; margin-bottom: 0"><span style="font-family: 宋体; mso-hansi-font-family: Times New Roman"><b><font color="#FFFFFF" size="5"><span lang="EN-US" style="font-family:宋体;mso-hansi-font-family:"Times New Roman"">while(low<=high)<span style="mso-spacerun: yes; font-family: 宋体; mso-hansi-font-family: Times New Roman">
</span></span><span lang="EN-US" style="mso-bidi-font-size: 10.0pt; font-family: 宋体; mso-hansi-font-family: Times New Roman">/*
</span></font><span lang="EN-US" style="mso-bidi-font-size: 10.0pt; font-family: 宋体; mso-hansi-font-family: Times New Roman"><font color="#FFFFFF" size="4">该循环语句完成确定插入位置
*/</font></span><font color="#FFFFFF" size="5"><span lang="EN-US" style="font-family:宋体;mso-hansi-font-family:
"Times New Roman""><o:p>
</o:p>
</span></font></b></span></p>
<p class="MsoNormal" style="text-indent: 21.25pt; margin-left: 21.25pt; margin-top: 0; margin-bottom: 0"><font color="#FFFFFF" size="5"><span lang="EN-US" style="font-family:宋体;mso-hansi-font-family:"Times New Roman""><b>{<span style="mso-tab-count: 1; font-family: 宋体; mso-hansi-font-family: Times New Roman">
</span>mid=(low+high)/2；<o:p>
</o:p>
</b></span></font></p>
<p class="MsoNormal" style="text-indent: 21.25pt; margin-left: 42.5pt; margin-top: 0; margin-bottom: 0"><font color="#FFFFFF" size="5"><span lang="EN-US" style="font-family:宋体;mso-hansi-font-family:"Times New Roman""><b>if(L.r[0].key>L.r[mid].key)<o:p>
</o:p>
</b></span></font></p>
<p class="MsoNormal" style="text-indent: 21.25pt; margin-left: 63.75pt; margin-top: 0; margin-bottom: 0"><font color="#FFFFFF" size="5"><span style="font-family: 宋体; mso-hansi-font-family: Times New Roman"><b><span lang="EN-US">low=mid+1；<span style="mso-spacerun: yes; font-family: 宋体; mso-hansi-font-family: Times New Roman">
</span></span><span lang="EN-US" style="mso-bidi-font-size: 10.0pt; font-family: 宋体; mso-hansi-font-family: Times New Roman">/*
插入位置在高半区中 */</span><span lang="EN-US" style="font-family:
宋体;mso-hansi-font-family:"Times New Roman""><o:p>
</o:p>
</span></b></span></font></p>
<p class="MsoNormal" style="text-indent: 21.25pt; margin-left: 42.5pt; margin-top: 0; margin-bottom: 0"><font color="#FFFFFF" size="5"><span style="font-family: 宋体; mso-hansi-font-family: Times New Roman"><b><span lang="EN-US">else<span style="mso-spacerun: yes; font-family: 宋体; mso-hansi-font-family: Times New Roman">
</span>high=mid-1；<span style="mso-spacerun: yes; font-family: 宋体; mso-hansi-font-family: Times New Roman">
</span></span><span lang="EN-US" style="mso-bidi-font-size: 10.0pt; font-family: 宋体; mso-hansi-font-family: Times New Roman">/*
插入位置在低半区中 */</span><span lang="EN-US" style="font-family:宋体;mso-hansi-font-family:"Times New Roman""><o:p>
</o:p>
</span></b></span></font></p>
<p class="MsoNormal" style="text-indent: 21.25pt; margin-left: 21.25pt; margin-top: 0; margin-bottom: 0"><font color="#FFFFFF" size="5"><span lang="EN-US" style="font-family:宋体;mso-hansi-font-family:"Times New Roman""><b>}/*
while */<o:p>
</o:p>
</b></span></font></p>
<p class="MsoNormal" style="text-indent: 21.25pt; margin-left: 21.25pt; margin-top: 0; margin-bottom: 0"><font color="#FFFFFF" size="5"><span style="font-family: 宋体; mso-hansi-font-family: Times New Roman"><b><span lang="EN-US" style="font-family:宋体;mso-hansi-font-family:"Times New Roman"">for(j=i-1；j>=high+1；--j)<span style="mso-spacerun: yes; font-family: 宋体; mso-hansi-font-family: Times New Roman">
</span></span><span lang="EN-US" style="mso-bidi-font-size: 10.0pt; font-family: 宋体; mso-hansi-font-family: Times New Roman">/*
high+1为插入位置 */</span><span lang="EN-US" style="font-family:宋体;mso-hansi-font-family:"Times New Roman""><o:p>
</o:p>
</span></b></span></font></p>
<p class="MsoNormal" style="text-indent: 21.25pt; margin-left: 42.5pt; margin-top: 0; margin-bottom: 0"><font color="#FFFFFF" size="5"><span style="font-family: 宋体; mso-hansi-font-family: Times New Roman"><b><span lang="EN-US">L.r[j+1]=L.r[j]；
</span><span lang="EN-US" style="mso-bidi-font-size: 10.0pt; font-family: 宋体; mso-hansi-font-family: Times New Roman">/*
后移元素，留出插入空位 */</span><span lang="EN-US" style="font-family:宋体;mso-hansi-font-family:"Times New Roman""><o:p>
</o:p>
</span></b></span></font></p>
<p class="MsoNormal" style="text-indent: 21.25pt; margin-left: 21.25pt; margin-top: 0; margin-bottom: 0"><font color="#FFFFFF" size="5"><span style="font-family: 宋体; mso-hansi-font-family: Times New Roman"><b><span lang="EN-US">L.r[high+1]=L.r[0]；
</span><span lang="EN-US" style="mso-bidi-font-size: 10.0pt; font-family: 宋体; mso-hansi-font-family: Times New Roman">/*
将元素插入 */</span><span lang="EN-US" style="font-family:宋体;mso-hansi-font-family:"Times New Roman""><o:p>
</o:p>
</span></b></span></font></p>
<p class="MsoNormal" style="text-indent: 21.25pt; margin-top: 0; margin-bottom: 0"><font color="#FFFFFF" size="5"><span lang="EN-US" style="font-family:宋体;mso-hansi-font-family:"Times New Roman""><b>}/*
for */<o:p>
</o:p>
</b></span></font></p>
<p class="MsoNormal" style="margin-top: 0; margin-bottom: 0"><font color="#FFFFFF" size="5"><span lang="EN-US" style="font-family:宋体;mso-hansi-font-family:
"Times New Roman""><b>}/* InsertSort */</b></span></font></p>
<p class="MsoNormal" style="margin-top: 0; margin-bottom: 0"><font color="#FFFFFF" size="5"><span lang="EN-US" style="font-family:宋体;mso-hansi-font-family:
"Times New Roman""><b><o:p>
</o:p>
</b></span></font></p>
<p class="MsoNormal" style="margin-top: 0; margin-bottom: 0"><span style="font-family:宋体;mso-hansi-font-family:"Times New Roman""><b><font size="5" color="#FFFF00">【时间效率】</font></b></span></p>
<p class="MsoNormal" style="margin-top: 0; margin-bottom: 0"><span style="font-family:宋体;mso-hansi-font-family:"Times New Roman""><b><font color="#FFFFFF" size="5"><span lang="EN-US"><o:p>
</o:p>
</span></font></b></span></p>
<p class="MsoNormal" style="margin-top: 0; margin-bottom: 0"><font color="#FFFFFF" size="5"><b><span lang="EN-US" style="font-family: 宋体; mso-hansi-font-family: Times New Roman"><o:p>
</o:p>
</span></b></font><span style="mso-bidi-font-size: 10.0pt; font-family: 宋体; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman; mso-bidi-font-family: Times New Roman; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"><b><font size="5" color="#FFFFFF">
确定插入位置所进行的折半查找，关键码的比较次数至多为<img border="0" src="ds10.23.gif" align="middle" width="66" height="24">次，移动记录的次数和直接插入排序相同，故时间复杂度仍为<span lang="EN-US" style="mso-bidi-font-size: 10.0pt; font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman; mso-bidi-font-family: Times New Roman">O(n<sup>2</sup>)</span><span style="mso-bidi-font-size: 10.0pt; font-family: 宋体; mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman; mso-bidi-font-family: Times New Roman; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">。是一个稳定的排序方法。</span></font></b></span></p>
<p align="left"> </p>
<p align="center"><b><font size="5"><a href="ds10.2.htm"><font color="#FFFF00">返回</font></a></font></b></p>
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