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Cod sursa(job #504425)
#include<iostream>
#include<fstream>
#define inf 1002
using namespace std;
int i,j,n,a[101][101],k;
int main()
{ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
f>>n;
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
if(i!=j)a[i][j]=inf;
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
f>>a[i][j];
for(int k=1;k<=n;k++)
for(int i=1;i<=n;i++)
if(k!=i)
for(int j=1;j<=n;j++)
if(k!=j)
if(a[i][j]>a[i][k]+a[k][j])
a[i][j]=a[i][k]+a[k][j];
for(int i=1;i<=n;i++)
{for(int j=1;j<=n;j++)
g<<a[i][j]<<" ";
g<<'\n';
}
}