#include <iostream>
using namespace std;
int a[100];
int main()
{
int n, i, suma=0, poz=0;
cout << "n= "; cin >> n;
cout << " introdu " << n << " componente a vectorului \n";
for (i=0; i<n; ++i)
{
cin >> a[i];
if (a[i]>0)
{
++poz;
suma+=a[i];
}
}
float media = (float)suma / poz;
cout << " media = " << media;
return 0;
}