The question is a very good one on segment trees and the solutions can be of great help to those who wish to learn segment trees. It is requested that the solutions be made public.
Thank you.
@pushkarmishra : This is one of the questions that Directi uses to hire interns . That’s why the solutions are not public .
http://careers.directi.com/display/CAR/Coding+Puzzles
For the problems listed at above page , the solutions are not available due to obvious reasons .
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Wow, finally some good answer for the question why it’s not public, thanks 
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