#include <iostream>
#include <thread>

using namespace std;

void task2();

void task()
{
    std::thread t2(task2);
    t2.join();
}

void task2()
{
    *(int *)0xdeadbeef = 42;
}

int main(int argc, char **argv) {

    std::thread t1(task);
    t1.join();

    std::cout << "\nthread has been executed";

    return 0;
}