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[CS Academy] MeowRead more
[CS Academy] Suffix FlipRead more
[Codeforces] Beta Round 63 (Div. 2) E. SubsegmentsRead more
[Codeforces] Unknown Language Round 2 E. Ali goes shoppingRead more
[Codeforces] Beta Round 66 C. LionAge IIRead more
[Codeforces] Beta Round 69 (Div. 1 Only) B. Falling AnvilsRead more
[Codeforces] Beta Round 71 C. BeaverRead more
[CS Academy] Odd Divisor CountRead more
[CS Academy] Numbers TournamentRead more