#include <iostream>
#include <string>
#include <unistd.h>
#include <ThreadPool> // Include my library

int main(void){
    uint nproc = std::thread::hardware_concurrency();

    ThreadPool p(nproc); // Initialize the thread pool with nproc threads
    std::vector<std::future<std::string>> futures; futures.resize(nproc); // Create a vector of futures

    char sc = 'A';
    for(auto& f : futures){
        // Enqueue the lambda task with the ThreadPool, storing the future so we can get our result later (and to prevent blocking).
        f = p.enqueue([](const char c) {
            sleep(2); // Sleep for 2 seconds. The *entire program* should only sleep for 2-3 seconds, due to the multithreading.
            return std::string(20, c);
        }, sc++);
    }

    // Print out our results.
    for(auto& f : futures){
        std::cout << f.get() << "\n";
    }

    std::cout << std::flush;
    return 0;
}