#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <string.h>
#include <errno.h>

pid_t Fork(void) {
    pid_t pid;

    if ((pid = fork()) < 0) {
        fprintf(stderr, "Fork Error: %s\n", strerror(errno));
        exit(1);
    }

    return pid;
}

int main() {
    pid_t pid;
    int x = 1;
    pid = Fork();
    if (pid == 0) {
        // Child
        printf("Child: x = %d\n", ++x);
        //getchar();
        exit(0);
    }

    //wait(NULL); No Wait => Topo Sort

    printf("Parent: x = %d\n", ++x);
    getchar();
    exit(0);
}