109 lines
2.6 KiB
C
109 lines
2.6 KiB
C
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/*
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* C Program to Describe the Representation of Graph using Incidence Matrix
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*/
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#include<stdio.h>
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struct node
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{
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int from, to;
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} a[5], t;
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void addEdge(int am[][5], int i, int j, int in)
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{
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int p, q;
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a[in].from = i;
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a[in].to = j;
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for ( p = 0; p <= in; p++)
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{
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for (q = p + 1; q <= in; q++)
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{
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if (a[p].from > a[q].from)
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{
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t = a[p];
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a[p] = a[q];
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a[q] = t;
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}
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else if (a[p].from == a[q].from)
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{
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if (a[p].to > a[q].to)
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{
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t = a[p];
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a[p] = a[q];
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a[q] = t;
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}
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}
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else
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{
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continue;
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}
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}
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}
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}
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int main()
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{
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int n, c = 0, x, y, ch, i, j;
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int am[5][5];
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printf("Enter the no of vertices\n");
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scanf("%d", &n);
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for (i = 0; i < 5; i++)
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{
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for (j = 0; j < 5; j++)
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{
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am[i][j] = 0;
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}
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}
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while (ch != -1)
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{
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printf("Enter the nodes between which you want to introduce edge\n");
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scanf("%d%d", &x, &y);
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addEdge(am, x, y, c);
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c++;
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printf("Press -1 to exit\n");
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scanf("%d", &ch);
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}
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for (j = 0; j < c; j++)
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{
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am[a[j].from][j] = 1;
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am[a[j].to][j] = 1;
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}
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for (i = 0; i < n; i++)
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{
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for (j = 0; j < c; j++)
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{
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printf("%d\t",am[i][j]);
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}
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printf("\n");
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}
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}
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/*
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Enter the no of vertices
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5
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Enter the nodes between which you want to introduce edge
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0
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1
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Press -1 to exit
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0
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Enter the nodes between which you want to introduce edge
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0
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2
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Press -1 to exit
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0
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Enter the nodes between which you want to introduce edge
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2
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3
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Press -1 to exit
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0
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Enter the nodes between which you want to introduce edge
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1
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4
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Press -1 to exit
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0
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Enter the nodes between which you want to introduce edge
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0
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3
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Press -1 to exit
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-1
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1 1 1 0 0
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1 0 0 1 0
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0 1 0 0 1
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0 0 1 0 1
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0 0 0 1 0
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