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

int gold = 0;



pthread_mutex_t gold_mutex;

void* mine(void *arg){
	int index = (int)arg;
	int count = 0;
	while(count < 2){
		if(pthread_mutex_trylock(&gold_mutex) == 0){
			gold += 10;
			printf("Miner %d gathered 10 gold \n", index);
			// sleep(2);
			pthread_mutex_unlock(&gold_mutex);
			count++;
		}
	}
}

void* trade(void *arg){
	int index = (int)arg;
	int count = 0;
	while(count < 2){
		if(pthread_mutex_trylock(&gold_mutex) == 0){
			if(gold < 10){
				printf("Warehouse is empty, cannot sell \n");
				// sleep(2);
				pthread_mutex_unlock(&gold_mutex);
				count++;
				continue;
			}
			gold -= 10;
			printf("Trader %d sold 10 gold \n", index);
			// sleep(2);
			pthread_mutex_unlock(&gold_mutex);
			count++;


		}
	}
}


int parse_cmdMaikatideba(char* argv){
	int res = 0;
	for (int i = 0; i < strlen(argv); ++i)
	{
		res*=10;
		res += argv[i] - '0';
	}
	return res;
}

int main(int argc, char *argv[])
{

	int minersCounter = parse_cmdMaikatideba(argv[1]);
	int tradersCounter = parse_cmdMaikatideba(argv[2]);

	printf("%s\n", argv[1]);
	printf("%s\n", argv[2]);

	pthread_t miners[minersCounter];
	pthread_t traders[tradersCounter];
	for (int i = 0; i < minersCounter; ++i)
	{
		int res = pthread_create(&miners[i], NULL, mine, (void*)i);
		if(res != 0){
			exit(0);
		}

	}
	for (int i = 0; i < tradersCounter; ++i)
	{

		int res = pthread_create(&traders[i], NULL, trade, (void*)i);
		if(res !=0){
			exit(0);
		}
	}

	for (int i = 0; i < minersCounter; ++i)
	{
		int res = pthread_join(miners[i], NULL);
		if(res != 0){
			exit(0);
		}

	}
	for (int i = 0; i < tradersCounter; ++i)
	{

		int res = pthread_join(traders[i], NULL);
		if(res != 0){
			exit(0);
		}
	}

	printf("%d\n", gold);

	return 0;
}