CSU OJ infected computer 1427

1#include <iostream>2#include <algorithm>3#include <stdio.h>4 #defineMax 200055 #definell Long Long6 using namespacestd;7 8 structg{9     int  from;Ten     intto ; One ll time; A }game[max]; -  - BOOLGraf[max]; the  - BOOLCMP (G a,g b) { -     returnA.time <B.time; - } + intMain () - { +     intn,m; A      while(cin>>n>>L) { at          for(inti =0; I < max;i++){ -graf[i]=false; -Game[i].time=game[i]. from=game[i].to=0; -         } -graf[1]=true; -  in          for(inti =0; I < m;i++){ -Cin>>game[i].time>>game[i]. from>>game[i].to; to         } +Sort (game,game+m,cmp); -  the         BOOLFlag =false; *          for(inti =0; I < m;i++){ $             if(Game[i]. from==1){Panax NotoginsengFlag =true; -                 //graf[game[i].to] = true; the             } +             if(Flag&&graf[game[i]. from]){ AGraf[game[i].to] =true; the             } +         } -ll ans =0; $          for(inti =1; I <= n;i++){ $             if(Graf[i]) ans++; -         } -cout<<ans<<Endl; the     } -     return 0;Wuyi}

If I have to divide it, I think it belongs to and look up a kind of

CSU OJ infected computer 1427