Lucky Four codechef solution in c++

#include <iostream>
using namespace std;

int countLuckyFours(int num) {
    int count = 0;
    while (num > 0) {
        if (num % 10 == 4) {
            count++;
        }
        num /= 10;
    }
    return count;
}

int main() {
    int t;
    cin >> t;

    while (t--) {
        int n;
        cin >> n;

        int result = countLuckyFours(n);
        cout << result << endl;
    }

    return 0;
}

This C++ code defines a function countLuckyFours that counts the occurrences of the digit '4' in a given number. Inside the main function, it reads an integer t from the standard input, which represents the number of test cases. Then, for each test case, it reads an integer n, calls the countLuckyFours function with n as an argument, and outputs the count of occurrences of the digit '4' in n to the standard output.