1006 Sign In and Sign Out (25)

#include <cstdio>
#include <vector>
#include <string>
#include <cstring>
#include <cstdlib>
#include <iostream>
#include <algorithm>
#define INF 0x3fffffff

using namespace std;

struct person
{
char id[20];
char intime[20];
char outtime[20];
};

int cmp1(person a,person b)
{
return strcmp(a.intime,b.intime)<0;
}

int cmp2(person a,person b)
{
return strcmp(a.outtime,b.outtime)>0;
}

int main()
{
int n;
person p[1005];
memset(p,0,sizeof(p));
cin>>n;
for (int i=0;i<n;i++)
{
cin>>p[i].id>>p[i].intime>>p[i].outtime;
}
sort(p,p+n,cmp1);
cout<<p[0].id<<' ';
sort(p,p+n,cmp2);
cout<<p[0].id;
}