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Thursday, December 3, 2009

WARSHALL’S ALGORITHM

WARSHALL’S ALGORITHM


SOURCE CODE:


#include “ stdio.h “
#include “ conio.h “
void main()
{
int n,i,j,k,p[10][10],a[10][10];
clrscr();
printf("Enter The Number Of Nodes: ");
scanf("%d",&n);

for(i=0;i < n;i++)
{
printf("\n");
for(j=0;j < n;j++)
{
scanf("%d",&a[i][j]);
}
}
for(i=0;i < n;i++)
{
for(j=0;j < n;j++)
{
if(a[i][j]==0)
p[i][j]=0;
else
p[i][j]=1;
}
}
for(k=0;k < n;k++)
{
for(i=0;i < n;i++)
{
for(j=0;j < n;j++)
{
p[i][j]=p[i][j]||(p[i][k]&&p[k][j]);
}
}
}
printf("\n");
for(i=0;i < n;i++)
{
for(j=0;j < n;j++)
{
printf("%d ",p[i][j]);
}
printf("\n");
}
getch();
}



OUTPUT:


Enter The Number Of Nodes: 4

0
1
0
0

0
0
0
1

0
0
0
0

1
0
1
0

1 1 1 1
1 1 1 1
0 0 0 0