Possible Original Problem for CF2081D

Правка en1, от gza, 2025-11-07 17:30:54

I'm solving CF2081D this evening,at the first glance,I figure out that this problem is identical to COCI2016_2017 CONTEST #6 T5 SIRNI.

Can anyone explain this situation, or did I misread the task?

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en1 Английский gza 2025-11-07 17:30:54 236 Initial revision (published)