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Cod sursa(job #626255)
#include <fstream>
using namespace std;
#define maxN 101
ifstream fin("royfloyd.in");
ofstream fout("royfloyd.out");
int c[maxN][maxN], n;
int main()
{
fin >> n;
for(int i = 1; i<=n; i++)
for(int j = 1; j<=n; j++)
{
fin >> c[i][j];
}
for(int k = 1; k <= n; k++)
for(int i = 1; i <= n; i++)
for(int j = 1; j <= n; j++)
if(i!=j && c[i][k] != 0 && c[k][j] != 0 && (c[i][j] > c[i][k] + c[k][j] || c[i][j] == 0))
c[i][j] = c[i][k] + c[k][j];
for(int i = 1; i <= n; i++)
{
for(int j = 1; j <=n; j++)
fout << c[i][j] << ' ';
fout << '\n';
}
fout.close();
fin.close();
return 0;
}