Напишите функцию qualityPoints - C++ - Ответ 4015849

#include <iostream>
using namespace std;
struct student {
    int num;
    int balls[10];
};
int qualityPoints(student * pointer) {
    int balls=0;
    for(int i=0; i< pointer->num; i++)
        balls+=pointer->balls[i];
    balls=balls/pointer->num;
    if(balls>=90)
        return 4;
    if(balls>=80)
        return 3;
    if(balls>=70)
        return 2;
    if(balls>=60)
        return 1;
    return 0;
}
int main() {
    student students[3];
 
    students[0].num=2;
    students[0].balls[0]=90;
    students[0].balls[1]=93;
    students[0].balls[2]=80;
 
    students[1].num=3;
    students[1].balls[0]=30;
    students[1].balls[1]=40;
    students[1].balls[2]=50;
 
    students[2].num=3;
    students[2].balls[0]=83;
    students[2].balls[1]=80;
    students[2].balls[2]=85;
 
    cout << "0 = " << qualityPoints(&students[0]) << endl;
    cout << "1 = " << qualityPoints(&students[1]) << endl;
    cout << "2 = " << qualityPoints(&students[2]) << endl;
    cin.get();
}