#include <stdio.h>
#include <pthread.h>
#include <stdlib.h>
#include <unistd.h>


int odp1=0;

void *thread_function(void *arg) {

	//int i=0;
	//for (i=0;i<4;i++){

	//printf ("%d\n",tablica[cnt]);

	int* tablica = (int*)arg;


	printf("pierwszy wezel: %d running.\n", tablica[0]);



		sleep(1+1);

		odp1 = tablica[0]*tablica[0];
		printf ("odp1 to %d\n",odp1);
		int odp2 = tablica[1]*tablica[1];
		printf ("odp2 to %d\n",odp2);
		odp1 = odp1+odp2;

		printf("wezel: %d done.\n", tablica[0]);
		printf("wynik to %d\n",odp1);



		pthread_exit(&odp1);

	return NULL;

}

int main(int argc, char **argv)
{
	int i;
	for (i=0;i<(argc-1);i++)
	{
	if (atoi(argv[i+1])==0)
		{
		printf("Podaj wartosci liczbowe\n");
		return 1;
		}
	}
	printf("argc = %d\n", argc);

	int tablica[argc];
	for (i = 0; i < argc-1; i++)
	{
		tablica[i]=atoi(argv[i+1]);

		printf("tablica[%d] = %d\n", i, tablica[i]);
  	}

	int argumenty=argc-1;
	printf ("ilosc argumentow= %d\n",argumenty);
	if (argumenty%2==1){
	argumenty=(argumenty+1)/2;
	printf("liczba watkow = %d\n",argumenty);}
	else {
	argumenty=argumenty/2;
	printf("liczba watkow = %d\n",argumenty);}


	int COUNT=argumenty;

	int err;

	int cnt;

	pthread_t p_thread[COUNT];

	int *odp[2];


	for(cnt = 0,i = 0; cnt < COUNT, i < COUNT; cnt++,i+2){



		err = pthread_create(&p_thread[cnt], NULL, &thread_function, &tablica[i]);



		if(err != 0)

			fprintf(stderr, "Error creating the thread");

	}

  	for(cnt = 0; cnt < COUNT; cnt++) {

		pthread_join(p_thread[cnt], (void **)&(odp[cnt]));

	}





  //fprintf(stdout, "All threads completed.\n First thread returned %d.\n Second thread returned %d.\n", *odp[0], *odp[1]);


return 0;
}