邻接矩阵

  1 #include <stdio.h>
  2 #include <stdlib.h>
  3 #include <string.h>
  4 
  5 #define MaxVertexNodeNumSize 1000
  6 #define MaxVertexNodeNameSize 100
  7 
  8 struct VertexNode
  9 {
 10     char VertexName[MaxVertexNodeNameSize];
 11     int VertexWeight;
 12 };
 13 
 14 struct _Graph
 15 {
 16     struct VertexNode VertexList[MaxVertexNodeNumSize];
 17     int ArcList[MaxVertexNodeNumSize][MaxVertexNodeNumSize];
 18     int ArcNum,VertexNum;
 19 };
 20 
 21 //if doesn't find index,return -1
 22 int VertexName2Index(struct _Graph *UnsignedGraph,char *VName)
 23 {
 24     int i;
 25     for(i = 0; i < UnsignedGraph -> VertexNum; i ++)
 26     {
 27         if(strcmp(UnsignedGraph -> VertexList[i].VertexName,VName)==0)
 28         {
 29             return i;
 30         }
 31     }
 32     return -1;
 33 }
 34 
 35 struct _Graph *UGCreat(int ArcSum,int VertexSum)
 36 {
 37     int i,j;
 38     struct _Graph *UnsignedGraph = malloc(sizeof(struct _Graph));
 39     UnsignedGraph -> ArcNum = ArcSum;
 40     UnsignedGraph -> VertexNum = VertexSum;
 41 
 42     for(i = 0; i < MaxVertexNodeNumSize; i ++)
 43     {
 44         for(j = 0; j < MaxVertexNodeNumSize; j ++)
 45         {
 46             UnsignedGraph -> ArcList[i][j] = INT_MAX;
 47         }
 48     }
 49 
 50     for(i = 0; i < VertexSum; i ++)
 51     {
 52         scanf("%s %d",UnsignedGraph -> VertexList[i].VertexName,&UnsignedGraph -> VertexList[i].VertexWeight);
 53     }
 54 
 55     for(i = 0; i < ArcSum; i ++)
 56     {
 57         char Arc_1[MaxVertexNodeNameSize];
 58         char Arc_2[MaxVertexNodeNameSize];
 59         int ArcIndex_1;
 60         int ArcIndex_2;
 61         int ArcWeight;
 62 
 63         scanf("%s %s %d",Arc_1,Arc_2,&ArcWeight);
 64 
 65         ArcIndex_1 = VertexName2Index(UnsignedGraph,Arc_1);
 66         ArcIndex_2 = VertexName2Index(UnsignedGraph,Arc_2);
 67         UnsignedGraph -> ArcList[ArcIndex_1][ArcIndex_2] = UnsignedGraph -> ArcList[ArcIndex_2][ArcIndex_1] = ArcWeight;
 68     }
 69     return UnsignedGraph;
 70 }
 71 
 72 void Travel(struct _Graph *UnsignedGraph)
 73 {
 74     char StartingPoint[MaxVertexNodeNameSize];
 75     char OverPoint[MaxVertexNodeNameSize];
 76     
 77     printf("Input start and over
");
 78     scanf("%s %s",StartingPoint,OverPoint);
 79     
 80     int StartIndex = VertexName2Index(UnsignedGraph,StartingPoint);
 81     int OverIndex = VertexName2Index(UnsignedGraph,OverPoint);
 82     
 83     printf("Distance:%d GetVertexPointSum:%d",UnsignedGraph->ArcList[StartIndex][OverIndex]
 84                                              ,UnsignedGraph->VertexList[StartIndex].VertexWeight+UnsignedGraph->VertexList[OverIndex].VertexWeight);
 85 }
 86 
 87 int main()
 88 {
 89     struct _Graph *G = UGCreat(8,5);
 90 
 91     Travel(G);
 92     return 0;
 93 }
 94 
 95 /*
 96         beijing 18
 97         zhengzhou 10
 98         hefei 9
 99         nanjing 12
100         guangzhou 14
101         beijing zhengzhou 7
102         beijing hefei 9
103         beijing nanjing 8
104         zhengzhou hefei 5
105         hefei nanjing 3
106         zhengzhou guangzhou 7
107         hefei guangzhou 8
108         nanjing guangzhou 6
109         
110 */

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原文地址：https://www.cnblogs.com/Asurudo/p/9427509.html