int main(int argc, char* argv[]) {
int id = fork();
if (id == 0) {
sleep(1);
}
printf("Current ID: %d, parent ID: %d\n", getpid(), getppid());
int res = wait(NULL);
if (res == -1) {
printf("No children to wait for\n");
} else {
printf("%d finished execution\n", res);
}
return 0;
}