Problem G of Codeforces Round 644(Div 3)

Revision en1, by NeutralMilkHotel, 2020-06-14 20:36:29 Can anyone explain why in problem G we are having a cyclic shift as d where (d.n)%m=0? I seem to get a bit of the intuitive picture but a proper formal proof would be appreciated.


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en1 English NeutralMilkHotel 2020-06-14 20:36:29 261 Initial revision (published)