Răspuns:
#include <iostream>
using namespace std;
int main() {
int a,b,c,d, m = 0;
cout <<"a=";
cin >> a;
cout <<"b=";
cin >> b;
cout <<"c=";
cin >> c;
cout <<"d=";
cin >> d;
m = (a + b + c + d) / 4;
cout << "media notelor este m= " << m;
return 0;
}