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Cod sursa(job #662690)
#include <fstream>
using namespace std;
const int MAXSIZE = 101;
ifstream in("royfloyd.in");
ofstream out("royfloyd.out");
int size;
int matrix[MAXSIZE][MAXSIZE];
int main()
{
in >> size;
for(int i=1;i<=size;i++)
for(int k=1;k<=size;k++)
in >> matrix[i][k];
in.close();
for(int k=1;k<=size;k++)
for(int i=1;i<=size;i++)
for(int j=1;j<=size;j++)
if(matrix[i][k] && matrix[k][j] && (matrix[i][j] > matrix[i][k] + matrix[k][j] || !matrix[i][j]) && i!=j)
matrix[i][j] = matrix[i][k] + matrix[k][j];
for(int i=1;i<=size;i++)
{
for(int k=1;k<=size;k++)
out << matrix[i][k] << " ";
out << "\n";
}
out.close();
return (0);
}