vivekr_nirma's blog

By vivekr_nirma, history, 4 years ago, In English

I have seen many times that last/second last question of div 3 is on trees like
- 627 f teached me about rerooting
- 629 e teached me prefix postfix number
- 624 e constructive algo on tree
and in many more div 3 i saw tree questions , so is that a coincidence or what

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4 years ago, # |
  Vote: I like it +6 Vote: I do not like it

Seriously, what answer do you expect to get?