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Cod sursa(job #359488)
#include<stdio.h>
int n,i,j,k, a[101][101];
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" ,&a[i][j]);
for(k=1;k<=n;k++)
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(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++)
printf("%d", a[i][j]);
return 0;
}