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help in problem 580/C (Kefa and park).

Revision en1, by devil_60, 2018-06-18 06:42:25

I am unable to get what is wrong with my logic. The question link is here:

My solution is this:

Tags #graph, #tree


  Rev. Lang. By When Δ Comment
en1 English devil_60 2018-06-18 06:42:25 210 Initial revision (published)