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#include <iostream>
#include <fstream>
using namespace std;
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
int main()
{
int i,j,k,n;
f>>n;
cout<<n;
int** A=new int*[n+1];
for(i=1;i<=n;i++)
{
A[i]=new int[n+1];
}
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][j]==0)&&(i!=j)))
{
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<<"\n";
}
return 0;
}