Is last quetion of div 3 always on trees ? 
Difference between en1 and en2, changed 17 character(s)
I have seen many times that last/second last question of div 3 is on trees like<br>
- [627 f](https://codeforces.com/contest/1324/problem/F) teached me about rerooting
<br>
- [629 e](https://codeforces.com/contest/1328/problem/E) teached me prefix postfix number
<br>
- [624 e](https://codeforces.com/contest/1311/problem/E) constructive algo on tree
<br>
and i many more div 3 i saw tree question , so is that a conicidence or what

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en3 English vivekr_nirma 2020-04-10 15:48:33 4
en2 English vivekr_nirma 2020-04-10 15:47:32 17
en1 English vivekr_nirma 2020-04-10 15:46:40 460 Initial revision (published)