cs3da.htm

文章说明的程序设计

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<p class="MsoPlainText" style="line-height: 150%"><span lang="EN-US">2、【解答】</span><span lang="EN-US" style="font-family:&quot;Times New Roman&quot;;mso-bidi-font-family:&quot;Courier New&quot;;
mso-font-kerning:8.0pt"><o:p>
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<p class="MsoPlainText" style="line-height: 150%"><span lang="EN-US" style="font-family:&quot;Times New Roman&quot;;mso-bidi-font-family:&quot;Courier New&quot;;
mso-font-kerning:8.0pt"><span style="mso-tab-count:1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</span>(1) </span><span style="mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;
mso-font-kerning:8.0pt">指针</span><i style="mso-bidi-font-style:normal"><span lang="EN-US" style="font-family:&quot;Times New Roman&quot;;mso-bidi-font-family:&quot;Courier New&quot;;
mso-font-kerning:8.0pt">p</span></i><span style="mso-ascii-font-family:&quot;Times New Roman&quot;;
mso-hansi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:8.0pt">右移</span><i style="mso-bidi-font-style:normal"><span lang="EN-US" style="font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt">k</span></i><span style="mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;
mso-font-kerning:8.0pt">个结点</span><span lang="EN-US" style="font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt"><o:p>
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<p class="MsoPlainText" style="line-height: 150%"><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt"><span style="mso-tab-count:1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</span><b style="mso-bidi-font-weight:normal">template&lt;class Type&gt; void</b> 
<i style="mso-bidi-font-style:normal">List</i>&lt;<b style="mso-bidi-font-weight:normal">Type</b>&gt; 
<b style="mso-bidi-font-weight:
normal">:: <o:p>
</o:p>
</b></span></p>
<p class="MsoPlainText" style="text-indent: 21.25pt; line-height: 150%"><i style="mso-bidi-font-style:normal"><span lang="EN-US" style="font-size:9.0pt;
mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;mso-bidi-font-family:
&quot;Courier New&quot;;mso-font-kerning:8.0pt">siftToRight</span></i><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt"> ( <i style="mso-bidi-font-style:normal">ListNode</i>&lt;<b style="mso-bidi-font-weight:
normal">Type</b>&gt; *<b style="mso-bidi-font-weight:normal">&amp; </b><i style="mso-bidi-font-style:normal">p</i><b style="mso-bidi-font-weight:normal">,</b> 
<i style="mso-bidi-font-style:normal">ListNode</i>&lt;<b style="mso-bidi-font-weight:
normal">Type</b>&gt; *<b style="mso-bidi-font-weight:normal">&amp; </b><i style="mso-bidi-font-style:normal">pr</i><b style="mso-bidi-font-weight:normal">, 
int</b><i style="mso-bidi-font-style:normal"> k</i> ) <b style="mso-bidi-font-weight:
normal">{</b><o:p>
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<p class="MsoPlainText" style="line-height: 150%"><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt"><span style="mso-tab-count:2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</span><b style="mso-bidi-font-weight:
normal">if </b>( <i style="mso-bidi-font-style:normal">p == NULL</i> <b style="mso-bidi-font-weight:normal">&amp;&amp;</b> 
<i style="mso-bidi-font-style:
normal">pr</i> !<i style="mso-bidi-font-style:normal">= first</i> ) <b style="mso-bidi-font-weight:normal">{</b><span style="mso-tab-count:3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</span>//</span><span style="font-size:9.0pt;mso-bidi-font-size:10.5pt;mso-ascii-font-family:&quot;Times New Roman&quot;;
mso-hansi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:8.0pt">已经在链的最右端</span><b style="mso-bidi-font-weight:normal"><span lang="EN-US" style="font-size:9.0pt;
mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;mso-bidi-font-family:
&quot;Courier New&quot;;mso-font-kerning:8.0pt"><o:p>
</o:p>
</span></b></p>
<p class="MsoPlainText" style="text-indent: 21.25pt; line-height: 150%; margin-left: 21.25pt"><b style="mso-bidi-font-weight:normal"><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt"><span style="mso-spacerun: yes">&nbsp;&nbsp; 
</span>cout &lt;&lt;</span></b><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt"> &quot;</span><span style="font-size:9.0pt;mso-bidi-font-size:10.5pt;mso-ascii-font-family:&quot;Times New Roman&quot;;
mso-hansi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:8.0pt">已经在链的最右端，不能再右移。</span><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt">&quot; 
&lt;&lt; <b style="mso-bidi-font-weight:normal">endl;<o:p>
</o:p>
</b></span></p>
<p class="MsoPlainText" style="text-indent: 21.25pt; line-height: 150%; margin-left: 21.25pt"><b style="mso-bidi-font-weight:normal"><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt"><span style="mso-spacerun: yes">&nbsp;&nbsp; 
</span>return;<o:p>
</o:p>
</span></b></p>
<p class="MsoPlainText" style="text-indent: 21.25pt; line-height: 150%; margin-left: 21.25pt"><b style="mso-bidi-font-weight:normal"><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt">}<o:p>
</o:p>
</span></b></p>
<p class="MsoPlainText" style="text-indent: 21.25pt; line-height: 150%; margin-left: 21.25pt"><b style="mso-bidi-font-weight:normal"><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt">int</span></b><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt"> <i style="mso-bidi-font-style:normal">i</i><b style="mso-bidi-font-weight:normal">;</b><span style="mso-spacerun: yes">&nbsp; 
</span><i style="mso-bidi-font-style:normal">ListNode</i>&lt;<b style="mso-bidi-font-weight:normal">Type</b>&gt; 
*<i style="mso-bidi-font-style:
normal">q</i><b style="mso-bidi-font-weight:normal">;<o:p>
</o:p>
</b></span></p>
<p class="MsoPlainText" style="text-indent: 21.25pt; line-height: 150%; margin-left: 21.25pt"><b style="mso-bidi-font-weight:normal"><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt">if </span></b><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt">( <i style="mso-bidi-font-style:normal">p 
== NULL</i><b style="mso-bidi-font-weight:
normal"> </b>)<span style="mso-tab-count:6">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</span>//</span><span style="font-size:9.0pt;mso-bidi-font-size:10.5pt;mso-ascii-font-family:&quot;Times New Roman&quot;;
mso-hansi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:8.0pt">从链头开始</span><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt"><o:p>
</o:p>
</span></p>
<p class="MsoPlainText" style="text-indent: 21.25pt; line-height: 150%; margin-left: 21.25pt"><b style="mso-bidi-font-weight:normal"><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt"><span style="mso-spacerun: yes">&nbsp;&nbsp; 
</span>{ </span></b><i style="mso-bidi-font-style:
normal"><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;
font-family:&quot;Times New Roman&quot;;mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:
8.0pt">i </span></i><b style="mso-bidi-font-weight:normal"><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt">= </span></b><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt">1<b style="mso-bidi-font-weight:normal">;<span style="mso-spacerun: yes">&nbsp; 
</span></b><i style="mso-bidi-font-style:normal">pr</i> = <i style="mso-bidi-font-style:normal">NULL</i><b style="mso-bidi-font-weight:normal">;</b><span style="mso-spacerun: yes">&nbsp; 
</span><i style="mso-bidi-font-style:normal">p</i> = <i style="mso-bidi-font-style:
normal">first</i><b style="mso-bidi-font-weight:normal">; }<span style="mso-tab-count:1">&nbsp;&nbsp; 
</span><span style="mso-tab-count:2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</span></b>//</span><span style="font-size:9.0pt;mso-bidi-font-size:10.5pt;mso-ascii-font-family:&quot;Times New Roman&quot;;
mso-hansi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:8.0pt">重置</span><i style="mso-bidi-font-style:normal"><span lang="EN-US" style="font-size:9.0pt;
mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;mso-bidi-font-family:
&quot;Courier New&quot;;mso-font-kerning:8.0pt">p</span></i><span style="font-size:9.0pt;
mso-bidi-font-size:10.5pt;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:
&quot;Times New Roman&quot;;mso-font-kerning:8.0pt">到链头也算一次右移</span><b style="mso-bidi-font-weight:
normal"><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;
font-family:&quot;Times New Roman&quot;;mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:
8.0pt"><o:p>
</o:p>
</span></b></p>
<p class="MsoPlainText" style="text-indent: 21.25pt; line-height: 150%; margin-left: 21.25pt"><b style="mso-bidi-font-weight:normal"><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt">else </span></b><i style="mso-bidi-font-style:normal"><span lang="EN-US" style="font-size:9.0pt;
mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;mso-bidi-font-family:
&quot;Courier New&quot;;mso-font-kerning:8.0pt">i </span></i><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt">= 0<b style="mso-bidi-font-weight:normal">;</b><o:p>
</o:p>
</span></p>
<p class="MsoPlainText" style="line-height: 150%"><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:8.0pt"><span style="mso-tab-count:2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</span><b style="mso-bidi-font-weight:
normal">while </b>( <i style="mso-bidi-font-style:normal">p</i> != <i style="mso-bidi-font-style:normal">NULL</i> 
<b style="mso-bidi-font-weight:
normal">&amp;&amp;</b> <i style="mso-bidi-font-style:normal">i</i> &lt; <i style="mso-bidi-font-style:normal">k</i> 
) <b style="mso-bidi-font-weight:normal">{<span style="mso-tab-count:4">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</span></b>//</span><span style="font-size:9.0pt;mso-bidi-font-size:10.5pt;mso-ascii-font-family:&quot;Times New Roman&quot;;
mso-hansi-font-family:&quot;Times New Roman&quot;;mso-font-kerning:8.0pt">右移</span><i style="mso-bidi-font-style:normal"><span lang="EN-US" style="font-size:9.0pt;
mso-bidi-font-size:10.5pt;font-family:&quot;Times New Roman&quot;;mso-bidi-font-family:
&quot;Courier New&quot;;mso-font-kerning:8.0pt">k</span></i><span style="font-size:9.0pt;
mso-bidi-font-size:10.5pt;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:
&quot;Times New Roman&quot;;mso-font-kerning:8.0pt">个结点</span><b style="mso-bidi-font-weight:
normal"><span lang="EN-US" style="font-size:9.0pt;mso-bidi-font-size:10.5pt;
font-family:&quot;Times New Roman&quot;;mso-bidi-font-family:&quot;Courier New&quot;;mso-font-kerning:
8.0pt"><o:p>
</o:p>