hdoj1234

#include "stdafx.h"#include <stdlib.h>#include <stdio.h>#include <string.h>

struct person{ char no[16]; char arrive[9]; char depart[9];}a[1000];

int  main(){ int n,m; int i,j,k; char early[9]; char night[9]; struct person persone,personn;

 scanf("%d",&n);

 for(i=1;i<=n;i++) {  scanf("%d",&m);  for(j=0;j<m;j++)  {   scanf("%s %s %s",a[j].no,a[j].arrive,a[j].depart);  }

  strcpy(early,"23:59:59");     strcpy(night,"00:00:00");  for(k=0;k<m;k++)  {   if(strcmp(a[k].arrive,early) < 0)   {    strcpy(early,a[k].arrive);    persone = a[k];   }   if(strcmp(a[k].depart,night) > 0)   {    strcpy(night,a[k].depart);    personn = a[k];   }  } 

  printf("%s %s/n",persone.no,personn.no);

 }

 return 0;

}