test_threads.cpp

// CPP program to demonstrate multithreading
// using three different callables.
#include <iostream>
#include <thread>
using namespace std;

// A dummy function
void foo(int Z)
{
    for (int i = 0; i < Z; i++) {
        //cout << "Thread using function"
          //     " pointer as callable\n";
    }
}

// A callable object
class thread_obj {
public:
    void operator()(int x)
    {
        for (int i = 0; i < x; i++);
          //  cout << "Thread using function"
            //      " object as  callable\n";
    }
};

int main()
{
    //cout << "Threads 1 and 2 and 3 "
     //    "operating independently" << endl;

    // This thread is launched by using
    // function pointer as callable
    thread th1(foo, 3);

    // This thread is launched by using
    // function object as callable
    thread th2(thread_obj(), 3);

    // Define a Lambda Expression
    auto f = [](int x) {
        for (int i = 0; i < x; i++);
            //cout << "Thread using lambda"
             //" expression as callable\n";
    };

    // This thread is launched by using
    // lamda expression as callable
    thread th3(f, 3);

    // Wait for the threads to finish
    // Wait for thread t1 to finish
    th1.join();

    // Wait for thread t2 to finish
    th2.join();

    // Wait for thread t3 to finish
    th3.join();

	/*int n;

	cin >> n;

	for (int i = 0; i < n; i++) {
		int c, w, k;
		cin >> c >> w >> k;
		cout << (c * k <= w ? "yes" : "no") << endl;
	}*/

	return 0;
}