Is last quetion of div 3 always on trees ?
Difference between en2 and en3, changed 4 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
n many more div 3 i saw tree questions , so is that a coniincidence 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)