Compile-Time Timer Reload

#include <iostream>
using namespace std;

// Define constexpr computeReload here
constexpr unsigned int computeReload(unsigned int clockHz, unsigned int intervalMs) {
    return (clockHz * intervalMs + 500) / 1000;
};

// Define constexpr RELOAD_TABLE here
constexpr unsigned int RELOAD_TABLE[3] = {
    computeReload(1'000'000, 1),
    computeReload(1'000'000, 10),
    computeReload(1'000'000, 100),
};

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

    // Print RELOAD_TABLE[idx]
    cout << RELOAD_TABLE[idx];

    return 0;
}