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Cod sursa(job #987522)
#include <fstream>
using namespace std;
fstream fin("royfloyd.in", ios::in);
fstream fout("royfloyd.out", ios::out);
short w[101][101];
short N;
int main()
{
short i,j,k;
fin>>N;
for(i=1; i<=N; i++)
{
for(j=1; j<=N; j++) fin>>w[i][j];
}
for(k=1; k<=N; k++)
{
for(i=1; i<=N; i++)
{
for(j=1; j<=N; j++)
{
if(i!=j && w[i][k] && w[k][j] && (!w[i][j] || w[i][k] + w[k][j] < w[i][j])) w[i][j] = w[i][k] + w[k][j];
}
}
}
for(i=1; i<=N; i++)
{
for(j=1; j<=N; j++)
{
fout<<w[i][j]<<' ';
}
fout<<'\n';
}
fin.close(); fout.close();
return 0;
}