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Cod sursa(job #430427)
#include<algorithm>
using namespace std;
#define INF 1000000
#define Nmax 110
int v[Nmax][Nmax],N,best[Nmax][Nmax];
int main()
{
freopen("royfloyd.in","r",stdin);
freopen("royfloyd.out","r",stdin);
scanf("%d",&N);
for(int i=1;i<=N;++i)
for(int j=1;j<=N;++j)
{
scanf("%d",&v[i][j]);
}
for(int k=1;k<=N;++k)
for(int i=1;i<=N;++i)
for(int j=1;j<=N;++j)
{
if(v[i][k]!=0&&v[k][j]!=0&&i!=j)
best[i][j]=min(best[i][j],v[i][k]+v[k][j]);
}
for(int i=1;i<=N;++i)
{
for(int j=1;j<=N;++j)
if(i!=j)
printf("0 ");
else printf("%d ",best[i][j]);
printf("\n");
}
}