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#include <iostream>
#include <fstream>
using namespace std;
ifstream input("royfloyd.in");
ofstream output("royfloyd.out");
int main()
{
int n;
input >> n;
int x[n][n];
for(int i = 0; i < n; i++)
{
for(int j = 0; j < n; j++)
{
input >> x[i][j];
}
}
for(int k = 0; k < n; k++)
{
for(int i = 0; i < n; i++)
{
for(int j = 0; j < n; j++)
{
if (x[i][k] && x[k][j] && (x[i][j] > x[i][k] + x[k][j] || !x[i][j]) && i != j)
{
x[i][j] = x[i][k] + x[k][j];
}
}
}
}
for(int i = 0; i < n; i++)
{
for(int j = 0; j < n; j++)
{
output << x[i][j] << " ";
}
output << "\n";
}
return 0;
}