Question

using c++ write a program that reads numbers from the user until the user enters a Sentinel. Use a Sentinel of -999. Ignore all negative numbers from the user input. Do the following:   must use loops and numbers to do this
1. Output the sum of all even numbers

2. Output the sum of all odd numbers

3. Output the count of all even numbers

4. Output the count of all odd numbers

Answer 1

#include <iostream>
using namespace std;

int main() {
    int num, evenSum = 0, oddSum = 0, evenCount = 0, oddCount = 0;
    while (true) {
        cout << "Enter a number: ";
        cin >> num;
        if(num == -999) break;
        if(num > 0) {
            if (num % 2 == 0) {
                evenSum += num;
                evenCount++;
            } else {
                oddSum += num;
                oddCount++;
            }
        }
    }
    cout << "Sum of all even numbers is " << evenSum << endl;
    cout << "Sum of all odd numbers is " << oddSum << endl;
    cout << "Count of all even numbers is " << evenCount << endl;
    cout << "Count of all odd numbers is " << oddCount << endl;
    return 0;
}