How to approach this problem?

Revision en1, by ishan_luhani, 2024-05-31 20:00:59

Problem: Problem 1632B

I can't understand this problem's editorial, from where to derive this 2k−1 , 2k−2 , … , 0 , 2k , 2k+1 , … , n−1

How can I approach other bitmasks problems?

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en1 English ishan_luhani 2024-05-31 20:00:59 280 Initial revision (published)