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题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1234
#include<bits/stdc++.h>
using namespace std;
const int N=10005;
typedef struct time{
int h,m,s;
}Node;
struct node{
string s;
Node in;
Node out;
}stu[N];
bool cmp(node a,node b)
{
if(a.in.h!=b.in.h)
return a.in.h<b.in.h;
if(a.in.m!=b.in.m)
return a.in.m<b.in.m;
if(a.in.s!=b.in.s)
return a.in.s<b.in.s;
}
bool cmp2(node a,node b)
{
if(a.out.h!=b.out.h)
return a.out.h>b.out.h;
if(a.out.m!=b.out.m)
return a.out.m>b.out.m;
if(a.out.s!=b.out.s)
return a.out.s>b.out.s;
}
int main()
{
int t,n;
cin>>t;
while(t--)
{
cin>>n;
for(int i=0;i<n;i++){
cin>>stu[i].s;
char a;
cin>>stu[i].in.h>>a>>stu[i].in.m>>a>>stu[i].in.s;
cin>>stu[i].out.h>>a>>stu[i].out.m>>a>>stu[i].out.s;
}
sort(stu,stu+n,cmp);
cout<<stu[0].s<<' ';
sort(stu,stu+n,cmp2);
cout<<stu[0].s<<endl;
}
return 0;
}