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#include <iostream>
#include <fstream>
using namespace std;
int mat[100][100],n;
void citire()
{
ifstream f("royfloyd.in");
f>>n;
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
f>>mat[i][j];
f.close();
}
void cost()
{
for(int k=1;k<=n;k++)
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
if(mat[i][j] && i!=j &&(mat[i][j]>mat[i][k]+mat[k][j] || !mat[i][j])mat[i][j]=mat[i][k]+mat[k][j];
}
void afisare()
{
ofstream g("royfloyd.out");
for(int i=1;i<=n;i++)
{
for(int j=1;j<=n;j++)
g<<mat[i][j]<<" ";
g<<"\n";
}
g.close();
}
int main()
{
citire();
cost();
afisare();
return 0;
}