Code:
#include iostream
#include conio.h
using namespace std;
struct node
{
int fr, to, cost;
}p[6];
int c = 0, temp1 = 0, temp = 0;
void prims(int *a, int b[][7], int i, int j)
{
a[i] = 1;
while (c < 6)
{
int min = 999;
for (int i = 0; i < 7; i++)
{
if (a[i] == 1)
{
for (int j = 0; j < 7; )
{
if (b[i][j] >= min || b[i][j] == 0)
{
j++;
}
else if (b[i][j] < min)
{
min = b[i][j];
temp = i;
temp1 = j;
}
}
}
}
a[temp1] = 1;
p[c].fr = temp;
p[c].to = temp1;
p[c].cost = min;
c++;
b[temp][temp1] = b[temp1][temp]=1000;
}
for (int k = 0; k < 6; k++)
{
cout<<"source node:"<
}
int main()
{
int a[7];
for (int i = 0; i < 7; i++)
{
a[i] = 0;
}
int b[7][7];
for (int i = 0; i < 7; i++)
{
cout<<"enter values for "<<(i+1)<<" row"<
for (int j = 0; j < 7; j++)
{
cin>>b[i][j];
}
}
prims(a, b, 0, 0);
getch();
}
Output:
enter values of adjacency matrix for a 7 node graph:
enter values for 1 row
0
3
6
0
0
0
0
enter values for 2 row
3
0
2
4
0
0
0
enter values for 3 row
6
2
0
1
4
2
0
enter values for 4 row
0
4
1
0
2
0
4
enter values for 5 row
0
0
4
2
0
2
1
enter values for 6 row
00
0
2
0
2
0
1
enter values for 7 row
0
0
0
4
1
1
0
MINIMUM SPANNING TREE AND ORDER OF TRAVERSAL:
source node:0
destination node:1
weight of node3
source node:1
destination node:2
weight of node2
source node:2
destination node:3
weight of node1
source node:2
destination node:5
weight of node2
source node:5
destination node:6
weight of node1
source node:6
destination node:4
weight of node1
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