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Cod sursa(job #291117)
#include<stdio.h>
#include<limits.h>
#define INF INT_MAX/2
int n,a[101][101];
int main(){
int i,j,k;
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",&a[i][j]);
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(a[i][j]==0) a[i][j]=INF;
for(k=1;k<=n;k++)
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(i!=k&&j!=k&&i!=j&&a[i][k]+a[k][j]<a[i][j])
a[i][j]=a[i][k]+a[k][j];
for(i=1;i<=n;i++){
for(j=1;j<=n;j++)
if(a[i][j]==INF) printf("0 ");
else printf("%d ",a[i][j]);
printf("\n");
}
return 0;
}