今日當值救生員
#ifndef DUTYLIFEGUARD_H_INCLUDED
#define DUTYLIFEGUARD_H_INCLUDED
#include <stdio.h>
#include <string.h>
#include "functions.h"
void dutylifeguard(Member members[]) {
int id1, id2, id3, id4, confirm;
printf("Hired positions (sorted by number): \n");