#include <iostream>
#include <thread>
#include <cstdlib>
#include <ctime>
//#include <mutex>
#include <random>
using namespace std;
const int philosophers_amount = 5;
mutex p_mutex;
default_random_engine engine;
uniform_int_distribution<int> rand_gen(0, 1500);
void philosopher_lifecycle(int philosopher_number) {
    for(int i = 0; i < 5; i++) {
        p_mutex.lock();
        cout << "Filozof nr " << philosopher_number << " rozmysla" << endl;
        p_mutex.unlock();
        this_thread::sleep_for(chrono::duration<int, milli>(rand_gen(engine) + 3500));
        p_mutex.lock();
        cout << "Filozof nr " << philosopher_number << " zaczal jesc" << endl;
        p_mutex.unlock();
        this_thread::sleep_for(chrono::duration<int, milli>(rand_gen(engine) + 3500));
    }
    p_mutex.lock();
    cout << "Filozof nr " << philosopher_number << " zakonczyl dzialanie" << endl;
    p_mutex.unlock();
}
int main() {
    cout << "Poczatek programu" << endl;
    thread threads[philosophers_amount];
    for(int i = 0; i < philosophers_amount; i++) {
        threads[i] = thread(philosopher_lifecycle, i+1);
    }
    for(int i = 0; i < philosophers_amount; i++) {
        threads[i].join();
    }
    cout << "Koniec programu" << endl;
    return 0;
}

​