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#include <bits/stdc++.h>
using namespace std;
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
const int N = 102;
const int oo = 10000010;
int n,d[N][N];
int main()
{
/// citirea grafului
f>>n;
for(int i=1; i<=n; i++)
for(int j=1; j<=n; j++)
{
f>>d[i][j];
if(d[i][j]==0)
d[i][j]=oo;
}
for(int k=1; k<=n; k++) /// pe unde vreau sa treca un drum ameliorat
for(int i=1; i<=n; i++) /// de unde
for(int j=1; j<=n; j++) ///pana unde
if(i!=j && i!=k && j!=k && d[i][j]>d[i][k]+d[k][j])
d[i][j]=d[i][k]+d[k][j];
for(int i=1; i<=n; i++,g<<'\n') /// dupa fiecare linie - enter
for(int j=1; j<=n; j++,g<<' ') /// dupa fiecare element spatiu
{
if(d[i][j]==oo)d[i][j]=0;
g<<d[i][j];
}
return 0;
}