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#include <iostream>
#include <fstream>
using namespace std;
ifstream f ("royfloyd.in");
ofstream g ("royfloyd.out");
int main()
{
int k,n,i,j,a[500][500];
f>>n;
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
{
f>>a[i][j];
}
}
for(k=1;k<=n;k++)
{
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
{
if(a[i][j]>(a[i][k]+a[k][j])&&a[i][k]!=0&&a[k][j]!=0)
{
a[i][j]=a[i][k]+a[k][j];
}
}
}
}
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
{
g<<a[i][j]<<" ";
}
g<<endl;
}
}