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<title>●试题四</title>
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<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-hansi-font-family:"Times New Roman"'>●试题四<span
lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-hansi-font-family:"Times New Roman"'>阅读下列算法说明和算法，将应填入</span><span
lang=EN-US style='mso-bidi-font-size:10.5pt'>(n)</span><span style='mso-bidi-font-size:
10.5pt;font-family:宋体;mso-hansi-font-family:"Times New Roman"'>的字句写在答题纸的对应栏内。<span
lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-hansi-font-family:"Times New Roman"'>【说明】<span
lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-hansi-font-family:"Times New Roman"'>下列最短路径算法的具体流程如下：首先构造一个只含</span><span
lang=EN-US style='mso-bidi-font-size:10.5pt'>n</span><span style='mso-bidi-font-size:
10.5pt;font-family:宋体;mso-hansi-font-family:"Times New Roman"'>个顶点的森林，然后依权值从小到大从连通网中选择不使森林中产生回路的边加入到森林中去，直至该森林变成一棵树为止，这棵树便是连通网的最小生成树。该算法的基本思想是：为使生成树上总的权值之和达到最小，则应使每一条边上的权值尽可能地小，自然应从权值最小的边选起，直至选出</span><span
lang=EN-US style='mso-bidi-font-size:10.5pt'>n-1</span><span style='mso-bidi-font-size:
10.5pt;font-family:宋体;mso-hansi-font-family:"Times New Roman"'>条互不构成回路的权值最小边为止。</span><span
lang=EN-GB style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-hansi-font-family:
"Times New Roman";mso-ansi-language:EN-GB'><o:p></o:p></span></p>
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<p class=MsoNormal align=center style='text-align:center;mso-layout-grid-align:
none;text-autospace:none'><span style='mso-bidi-font-size:10.5pt;font-family:
宋体;mso-hansi-font-family:"MS Sans Serif"'>图</span><span lang=EN-US
style='mso-bidi-font-size:10.5pt'>5</span><span style='mso-bidi-font-size:10.5pt;
font-family:宋体;mso-hansi-font-family:"Times New Roman"'>算法流程图</span><span
lang=EN-GB style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-hansi-font-family:
"Times New Roman";mso-ansi-language:EN-GB'><o:p></o:p></span></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-hansi-font-family:"Times New Roman"'>【算法】<span
lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
lang=EN-US style='mso-bidi-font-size:10.5pt'>/*</span><span style='mso-bidi-font-size:
10.5pt;font-family:宋体;mso-hansi-font-family:"Times New Roman"'>对图定义一种新的表示方法，以一维数组存放图中所有边，并在构建图的存储结构时将它构造为一个<span
lang=EN-US>"有序表"。以顺序表</span></span><span lang=EN-US style='mso-bidi-font-size:
10.5pt'>MSTree</span><span style='mso-bidi-font-size:10.5pt;font-family:宋体;
mso-hansi-font-family:"Times New Roman"'>返回生成树上各条边。</span><span lang=EN-US
style='mso-bidi-font-size:10.5pt'>*/<o:p></o:p></span></p>
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lang=EN-US style='mso-bidi-font-size:10.5pt'>typedef struct{<o:p></o:p></span></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
lang=EN-US style='mso-bidi-font-size:10.5pt'>VertexType vex1</span><span
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lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
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style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-hansi-font-family:"Times New Roman"'>；<span
lang=EN-US><o:p></o:p></span></span></p>
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lang=EN-US><o:p></o:p></span></span></p>
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