cmmdc a n nr var3

#include <iostream>

using namespace std;

int main()
{
    int n,a,b,cmmdc,r,i;
    cout<<"Introduceti nr de nr din sir: "; cin>>n;
    cout<<"a= "; cin>>a;
    for (i=2; i<=n; i++)
    {
        cout<<"b= "; cin>>b;
        if (b!=0)
        {
            do
            {
                r=a%b;
                a=b;
                b=r;
            }while (r!=0);
        }
    }
    if (a==0)
        cout<<"Cmmdc nedefnit";
    else
        cout<<"Cmmdc este: "<<a;
    return 0;
}