PAT甲题题解-1006. Sign In and Sign Out (25)-找最小最大

判断哪个人最早到，哪个人最晚走
水，就是找最大值最小值

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cstring>
#include <string.h>
using namespace std;
int m;
char unlock[20],lock[20];
char start[20]="25:00:00",endtime[20]="00:00:00";
int main()
{
    char id[20],time1[20],time2[20];
    scanf("%d",&m);
    for(int i=0;i<m;i++){
        scanf("%s %s %s",id,time1,time2);
        if(strcmp(time1,start)<0){
            strcpy(unlock,id);
            strcpy(start,time1);
        }
        if(strcmp(time2,endtime)>0){
            strcpy(lock,id);
            strcpy(endtime,time2);
        }
    }
    printf("%s %s",unlock,lock);
    return 0;
}