C++ operating system

What does the following program output? What does it imply about global variables and the fork() command? How does the output change if int nums[SIZE] is moved into main()? (15 pts)

int nums[SIZE] = {0,1,2,3,4};

int main(){

pid_t pid;

pid = fork();

if (pid == 0){

for (int i = 0; i < SIZE; i++){

nums[i] *= -i;

printf("CHILD: %d ",nums[i]);

}

printf(" ");

}else if (pid > 0){

wait(NULL);

for (int i = 0; i < SIZE; i++)

printf("PARENT: %d ",nums[i]);

printf(" ");

}

}