kruskal code implementation code example

Example: code implementation of krushkals algorithm

a,b,u,v,n,ne=1;
    int min,mincost=0,cost[9][9],parent[9];
    int find(int);
    int uni(int,int);
    void main()
    {    #include <stdio.h>
    #include <conio.h>
    #include <stdlib.h>
    int i,j,k,
    	printf("\n\tImplementation of Kruskal's Algorithm\n");
    	printf("\nEnter the no. of vertices:");
    	scanf("%d",&n);
    	printf("\nEnter the cost adjacency matrix:\n");
    	for(i=1;i<=n;i++)
    	{
    	for(j=1;j<=n;j++)
    	{
    	scanf("%d",&cost[i][j]);
    	if(cost[i][j]==0)
    	cost[i][j]=999;
    	}
    	}
    	printf("The edges of Minimum Cost Spanning Tree are\n");
    	while(ne < n)
    	{
    	for(i=1,min=999;i<=n;i++)
    	{
    	for(j=1;j <= n;j++)
    	{
    	if(cost[i][j] < min)
    	{
    	min=cost[i][j];
    	a=u=i;
    	b=v=j;
    	}
    	}
    	}
    	u=find(u);
    	v=find(v);
    	if(uni(u,v))
    	{
    	printf("%d edge (%d,%d) =%d\n",ne++,a,b,min);
    	mincost +=min;
    	}
    	cost[a][b]=cost[b][a]=999;
    	}
    	printf("\n\tMinimum cost = %d\n",mincost);
    	getch();
    }
    int find(int i)
    {
    	while(parent[i])
    	i=parent[i];
    	return i;
    }
    int uni(int i,int j)
    {
    	if(i!=j)
    	{
    	parent[j]=i;
    	return 1;
    	}
    	return 0;
    }