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Cod sursa(job #547310)
#include <stdio.h>
using namespace std;
long a[101][101],n,i,j,k;
int main()
{
freopen("royfloyd.in","r",stdin);
freopen("royfloyd.out","w",stdout);
scanf("%ld", &n);
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
scanf("%ld", &a[i][j]);
for(k=1;k<=n;k++)
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(k!=i && k!=j && i!=j)
if(a[i][j]>a[i][k]+a[k][j] && (a[i][k] && a[k][j]) )
a[i][j]=a[i][k]+a[k][j];
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
printf("%ld ", a[i][j]);
printf("\n");
}
return 0;
}