A1006

输入n行员工id以及到达和离开的时间，输出最早到达的员工的id和最晚离开的员工的id

注：字符串赋值函数strcpy(目标字符串，原字符串)字符串之间的赋值使用该函数，需要#include<string.h>

 #include<cstdio>
 #include<string.h>
 int main(){
     char signinid[],signoutid[],temid[];
     int h1,m1,s1,h2,m2,s2,n,temin,temout;
     long long signin=,signout=;
     scanf("%d",&n);
     while(n--){
         scanf("%s %d:%d:%d %d:%d:%d", &temid,&h1,&m1,&s1,&h2,&m2,&s2);
         temin=h1*+m1*+s1;
         temout=h2*+m2*+s2;
         if(temin<signin){
             signin=temin;
             strcpy(signinid,temid);
         }
         if(temout>signout){
             signout=temout;
             strcpy(signoutid,temid);
         }
     }
     printf("%s %s",signinid,signoutid);
     return ;
 }