자식프로세스 기다리는 것 wait 하나로 종결???

#include<stdio.h>
#include<stdlib.h>
#include<unistd.h>
#include<sys/types.h>
 
int main(void)
{
        pid_t pid, cpid;
        char *message;
        int n;
 
        printf("fork program starting\n");
        pid = fork();
        switch(pid)
        {
                case -1:
                        printf("fork failed\n");
                        exit(1);
                case 0:
                        message = "This is the child";
                        n=5;
                        break;
                default:
                        wait();
                        message = "This is the parent";
                        n=3;
                        break;
        }
        for(; n>0; n--)
        {
                puts(message);
                sleep(1);
        }
                exit(0);
}