c++ ห.ร.ม.

int a, b, gcd;
cout << "Enter number {a b} : ";
cin >> a >> b;

for ( int i = 1; i < 100; i++)
{
if (a%i == 0 && b%i == 0)
{
gcd = i;
}
}
cout << "G.C.D (" << a << "," << b << ") = " << gcd << endl;