pros millis()

#include <iostream>
#include <chrono>
#include <thread>

int main() {
    auto start = std::chrono::steady_clock::now();

    // Perform some time-consuming task or wait
    std::this_thread::sleep_for(std::chrono::milliseconds(2000));

    auto end = std::chrono::steady_clock::now();
    auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(end - start).count();

    std::cout << "Elapsed time: " << duration << " milliseconds\n";

    return 0;
}