Question

Q#1:

Write a C++ program to enter a number, compute and print the following:

- Sum of even digits in the number

- Count of even digits in the number

- Count of digits below 5

For example, if the input is 3429, then

Sum of even digits in the number = 6

Count of even digits in the number = 2

Count of digits below 5 = 3

Answer 1

#include <iostream>

using namespace std;

int main() {
    int n, d, evenCount = 0, evenSum = 0, digitCount = 0;
    cin >> n;
    if (n == 0) {
        digitCount++;
        evenCount++;
    }
    while (n > 0) {
        d = n % 10;
        if (d % 2 == 0) {
            evenCount++;
            evenSum += d;
        }
        if (d < 5) {
            digitCount++;
        }
        n /= 10;
    }
    cout << "Sum of even digits in the number = " << evenSum << endl;
    cout << "Count of even digits in the number = " << evenCount << endl;
    cout << "Count of digits below 5 = " << digitCount << endl;
    return 0;
}