Игра ножницы, камень, бумага используя threads в C

#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#include <semaphore.h>
 
 
void *arbit(void *arg);
void player1(int i);
void player2(int i);
void test(int i);
 
int i;
int num_play;
pthread_t pl1,pl2,arb;
sem_t p1,p2;
int p, m, k=0;
 
int x[1000];
int y[1000];
 
void *arbit(void *arg)
{
int i= *(int*) arg;
player1(i);
test(i);
player2(i);
test(i);
printf("Player 1 - Victory:%d Draw: %d Loss %d \n", p, m, k);
printf("Player 2 - Victory:%d Draw: %d Loss %d \n", k, m, p);
}
 
void player1(int i)
{
y[i]=rand()%3;
sem_wait(&p1);
if(y[i]==0)
printf("Player 1 choice scissors.\n");
if(y[i]==1)
printf("Player 1 choice paper.\n");
if(y[i]==2)
printf("Player 1 choice rock.\n");
sem_post(&p1);
}
 
 
void test(int i)
{
for(i=0;i<=num_play;i++)
{
if((y[i]==0 && x[i]==1) || (y[i]==1 && x[i]==2) || (y[i]==2 && x[i]==0))
{
p++;
}
if((y[i]==1 && x[i]==0) || (y[i]==2 && x[i]==1) || (y[i]==0 && x[i]==2))
{
k++;
}
if((y[i]==1 && x[i]==1) || (y[i]==2 && x[i]==2) || (y[i]==0 && x[i]==0))
{
m++;
}
}
}
 
void player2(int i)
{
x[i]=rand()%3;
sem_wait(&p2);
if(x[i]==0)
printf("Player 1 choice scissors.\n");
if(x[i]==1)
printf("Player 1 choice paper.\n");
if(x[i]==2)
printf("Player 1 choice rock.\n");
sem_post(&p2);
}
 
 
int main()
{
printf("Enter number of games: \n");
scanf("%d",&num_play);
sem_init(&p1,0,1);
sem_init(&p2,0,1);
for(i=0;i<=num_play;i++)
{
pthread_create(&pl1,NULL,(void *)player1,&i);
pthread_create(&pl2,NULL,(void *)player2,&i);
pthread_create(&arb,NULL,(void *)arbit,&i);
}
pthread_join(pl2,NULL);
pthread_join(pl1,NULL);
pthread_join(arb,NULL);
return 0;
}