void *departCart()
{
    while(1)
    {

        //determine groupsizes
        sleep(5);
        int posArray[4];
        int groupsize1 = (rand() % (MAX_GROUPSIZE + 1 - MIN_GROUPSIZE)) + MIN_GROUPSIZE;
        int groupsize2 = (rand() % (MAX_GROUPSIZE + 1 - MIN_GROUPSIZE)) + MIN_GROUPSIZE;
        int groupsize3 = (rand() % (MAX_GROUPSIZE + 1 - MIN_GROUPSIZE)) + MIN_GROUPSIZE;
        if(groupsize1 + groupsize2 + groupsize3 == CART_SIZE)
        {
            sem_wait(&groupQueue);
            sem_wait(&groupQueue);
            sem_wait(&groupQueue);
            printf("\nCART DEPARTED WITH 3 GROUPS:\t%d,%d,%d\n",groupsize1,groupsize2,groupsize3);
        }else
        {
            if (groupsize1 + groupsize2 == CART_SIZE)
            {
                sem_wait(&groupQueue);
                sem_wait(&groupQueue);
                printf("\nCART DEPARTED WITH 2 GROUPS:\t%d,%d\n",groupsize1,groupsize2);
            } else
            {
                if (groupsize1 + groupsize2 == CART_SIZE - 1)
                {
                    sem_wait(&groupQueue);
                    sem_wait(&groupQueue);
                    sem_wait(&singleQueue);
                    printf("\nCART DEPARTED WITH 2 GROUPS:\t%d,%d AND 1 SINGLE RIDER\n",groupsize1,groupsize2);
                }
            }
        }
    }
}