#include "pch.h"
#include <iostream>
using namespace std;

int main()
{
int i;
double mid = 0;
int a[21];
for (i = 0; i < 21; i++)
{
cout << "Vvedite ocenku po informatike uchenika" << i << endl;
cin >> a[i];
mid = mid + a[i];
}
mid = mid / 21;
cout << "Ocenka nije sredney u sleduushih uchenikov:" << endl;
for (i = 0; i < 21; i++)
if (a[i] < mid)
cout << "nomer [" « i « "] - ocenka " << a[i] « endl;
return 0;
}