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Cod sursa(job #227039)
#include<stdio.h>
#define MAXN 101
#define MIN(a,b) a<b?a:b
int i,j,k,n,x;
int a[MAXN][MAXN];
int main(void)
{
freopen("royfloyd.in","r",stdin);
freopen("royfloyd.out","w",stdout);
scanf("%d",&n);
for(i=1;i<=n;i++)
for(j=1;j<i;j++)
a[i][j]=a[j][i]=10000001;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
{
scanf("%d",&x);
if(x)
a[i][j]=x;
}
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]&&i!=j)
a[i][j]=MIN(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]);
printf("\n");
}
return 0;
}