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Cod sursa(job #642059)
#include<cstdio>
using namespace std;
int mat[101][101],n,i,j,k,x;
int main()
{
freopen("royfloyd.in","r",stdin);
freopen("royfloyd.out","w",stdout);
scanf("%d",&n);
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
{
scanf("%d",&x);
if(x==0&&i!=j)
mat[i][j]=10000000;
else
mat[i][j]=x;
}
for(k=1;k<=n;k++)
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(mat[i][k]+mat[k][j]<mat[i][j])
mat[i][j]=mat[i][k]+mat[k][j];
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
{
if(mat[i][j]==10000000)
printf("0 ");
else
printf("%d ",mat[i][j]);
}
printf("\n");
}
return 0;
}