Help in CF 687B

Правка en1, от kittyK, 2020-08-03 06:29:09

Can anyone explain how to solve this 687B - Remainders Game . I don't understand how to come with ideas for such problems and I did not understand the editorial well.

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en1 Английский kittyK 2020-08-03 06:29:09 173 Initial revision (published)