Arrays

#include <bits/stdc++.h>
using namespace std;

#define int long long

signed main()
{
    int n;
    cin >> n; // size of array a
    int a[n + 5]; // [0 , n + 4]

    for(int i = 0; i < n; i++){
        cin >> a[i]; // element in the i-th index (position)
    }
    int s = 0;
    int odd = 0 , even = 0;
    for(int i = 0; i < n; i++){
        s += a[i];
        if(a[i] % 2 == 0)
            even++;
        else
            odd++;
    }
    cout << "Sum of array: " << s << endl;
    cout << "Even: " << even << endl;
    cout << "Odd: " << odd << endl;
    /*
    for(int i = 0; i < n; i++){
        cout << a[i] << " ";
    }
    cout << endl; // [0 , n - 1]
    for(int i = n - 1; i >= 0; i--){
        cout << a[i] << " ";
    }*/

}