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

int gold_total;
pthread_mutex_t Mutex;

void* mine(void* argument){
	int arg = (int)argument;
	int my_value = 0;
	while(1){
		sleep(1);
		pthread_mutex_lock(&Mutex);
			printf("Worker number %d is mining!\n",arg);
			if (gold_total == 0){
				pthread_mutex_unlock(&Mutex);
				pthread_exit((void *)my_value);
			}
			my_value += 10;
			gold_total -= 10;
		pthread_mutex_unlock(&Mutex);
	}
}


int main(int argc, char** argv){
	int i;
	int a[2];
	pthread_mutex_init(&Mutex, NULL);

	for (i = 1; i < argc; i++){
		a[i-1] = atoi(argv[i]);
	}

	pthread_t Workers[a[1]];
	gold_total = a[0];
	int gold[a[1]];
	int return_gold[a[1]];

	for (i = 0; i < a[1];i++){
		pthread_create(&Workers[i], NULL, mine,(void *) i+1);
	}

	for (i = 0; i < a[1];i++){
		pthread_join(Workers[i],(void **)&gold[i]);
		return_gold[i] = (int) gold[i];
		printf("%d\n", return_gold[i]);
	}

	pthread_mutex_destroy(&Mutex);

	return 0;
}