functie cmmdc

#include <iostream>
#include <fstream>

using namespace std;
ifstream f("date.in");

int cmmdc (int a, int b)
{
    while (a != b)
    {
        if (a > b)
        {
            a = a - b;
        }
        else
        {
            b = b - a;
        }
    }
    return a;
}

int main()
{
    int a1,b1,a2,b2,c1,c2,q1,q2;
    f>>a1>>b1>>a2>>b2;
    c1=a1;
    c2=a2;
    q1=b1;
    q2=b2;
    if (cmmdc(a1,b1)==1)
    cout<<c1<<" "<<q1;
    else
    if (cmmdc(a1,b1)==1)
    cout<<c2<<" "<<q2;
    else
    cout<<"Nu sunt.";
}