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Cod sursa(job #157409)
#include <fstream>
using namespace std;
int main()
{
ifstream f("royfloyd.in");
int n;
f>>n;
int a[101][101],i,j,k;
for (i=1; i<=n; i++)
for (j=1; j<=n; j++) f>>a[i][j];
f.close();
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]=a[i][k]+a[k][j];
ofstream f2("royfloyd.out");
for (i=1; i<=n; i++)
{
for (j=1; j<=n; j++) f2<<a[i][j]<<" ";
f2<<endl;
}
f2.close();
}