S1 - zad.19.

#include <iostream>

int main()
{
    int a, br=0, s=0, g=1;
    std:: cin >> a;
    s=a;
    g=a;
    while(a!=0)
    {
        std:: cin >> a;
        br++;
        s+=a;
        g*=a;
    }
    std:: cout << "Suma: " << (float)s/br;
    std:: cout << "Suma: " << // n-ti korijen neee'am pooojma xD


   return 0;
}