#include <stdio.h>
#include <unistd.h>
#include <omp.h>

int main(int argc, char **argv){
	int i, x = 1, y = 2, z = 3;


	printf("start - 4\n");
	sleep(2);
	#pragma omp parallel private(i) num_threads(4)
	{
	printf("Hello from thread %d\n", omp_get_thread_num());
	for(i = 0; i < 1500 * (omp_get_thread_num() + 1); i++){
		x = y + z;
		z = x - y;
		if(i % 500 == 0)
			sleep(1);
	}
	printf("Bye from thread %d - %d\n", omp_get_thread_num(), i);
	}
	printf("end - 4\n\n");
	
	printf("start - 6\n");
	sleep(2);
	#pragma omp parallel private(i) num_threads(6)
	{
	printf("Hello from thread %d\n", omp_get_thread_num());
	for(i = 0; i < 1000 * (omp_get_thread_num() + 1); i++){
		x = y + z;
		z = x - y;
		if(i % 500 == 0)
			sleep(1);
	}
	printf("Bye from thread %d - %d\n", omp_get_thread_num(), i);
	}
	printf("end - 6\n\n");

	printf("start - 2\n");
	sleep(2);
	#pragma omp parallel private(i) num_threads(2)
	{
	printf("Hello from thread %d\n", omp_get_thread_num());
	for(i = 0; i < 3000 * (omp_get_thread_num() + 1); i++){
		x = y + z;
		z = x - y;
		if(i % 500 == 0)
			sleep(1);
	}
	printf("Bye from thread %d - %d\n", omp_get_thread_num(), i);
	}
	printf("end - 2\n\n");

	return 0;
}