Задача за контролното 7,12

#include<iostream>>
using namespace std;

int main()
{
    double avg;
    bool is_prime=true;
    int a[100],n,sum=0,odd=0,even=0,min,max,product=1,moreavg,count=0,prnumb=0,qdrnumb=0,num_cpy;
    cout << "Enter number count: ";
    cin >> n;
    moreavg = 0;
    for (int i=0; i < n; i++){
        cout << "Enter a number: ";
        cin >> a[i];
    }
    for (int i=0; i < n; i++){
        if (a[i]%2==0){even++;}
    }
     for (int i=0; i < n; i++){
        if (a[i]%2==1){odd++;}
    }
    min = max = a[0];
     for (int i=0; i < n; i++){
        if (a[i]<min) {min=a[i];}
    }
    for (int i=0; i < n; i++){
        if (a[i]>max) {max=a[i];}
    }
    for (int i=0; i < n; i++){
        sum += a[i];
    }
    for (int i=0; i < n; i++){
        product *= a[i];
    }
    avg =(double) sum/n;
    for(int i=0; i<n; i++){
        if (a[i]>avg) {moreavg++;}
    }
    for(int i = 0; i < n; i++) {
        is_prime=true;
    for(int j = 2; j < a[i]; j++) {
        if(a[i]%j==0) {
            is_prime = false;
        }
    }
    if(is_prime==true) { prnumb++; }

    }
    for(int i = 0; i < n; i++) {
    num_cpy = a[i];
    count = 0;
    while(num_cpy!=0) {
    count += (num_cpy%2);
    num_cpy/=2;
    }
    if(count==1) { qdrnumb++; }

    }


    cout << endl;
    cout << "The sum of the numbers is: " << sum << endl;
    cout << "The product of the numbers is: " << product << endl;
    cout << "Min number: " << min << endl;
    cout << "Max number: " << max << endl;
    cout << "Even numbers: " << even << endl;
    cout << "Odd numbers: " << odd << endl;
    cout << "Average of the numbers: " << avg << endl;
    cout << "Numbers bigger than the Average: " << moreavg << endl;
    cout << "Prime numbers: " << prnumb << endl;
    cout << "Quadratic numbers: " << qdrnumb << endl;
}