#include <iostream>
#include <Qthread>
 
using namespace std;
 
class MyThread: public Qthread 
{ 
   private:
	int tid;
   public:
	MyThread (int i) : ID (i) 
	{}
	void run()
	{   cout << "Thread " << ID << " is running\n": }
}; 
 
int main(int argc, char *argv[]) {
  int N = atoi (argv[1]);
  myThread *x[n];
 
  /* create threads */
  for (int i = 0; i < N; ++i) {
      x[i] = new MyThread(i);
      x[i]->start();
  }
  
  /* block until all threads complete */
  for (int i = 0; i < N; ++i) {
      x[i]->wait(); 
  }
 
  return EXIT_SUCCESS;
}