Question

Write a function named totalEvens that computes the total number of even integers that are less than a given threshold. The function takes one parameter: 1. threshold, an integer The function repeatedly asks the user to enter a number until -1 is entered. The function returns the total number of even integers less then threshold. For example, if threshold is 10 and user enters: 5 4 7 20 12 -1 The function would return 1. (USE C++)

Answer 1

#include <iostream>

using namespace std;

int totalEvens(int threshold) {
    int count = 0, num;
    while (true) {
        cout << "Enter a number(-1 to exit): ";
        cin >> num;
        if (num == -1) break;
        if (num < threshold && num % 2 == 0) {
            count++;
        }
    }
    return count;
}

int main() {
    int t;
    cout << "Enter a threshold value: ";
    cin >> t;
    int n = totalEvens(t);
    cout << "Number of evens entered is " << n << endl;
    return 0;
}