Pentru asta am primit 0 puncte:))

#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("euclid2.in");
ofstream fout("euclid2.out");
int euclid(int x, int y)
{
if(!y)
return x;
return(y, y%x);
}
int main()
{
int x, nr1, nr2;
fin >> x;
for(int i = 1; i <= x; i++)
{
fin >> nr1 >> nr2;
fout << euclid(nr1, nr2) << "\n";
}
return 0;
}