[Codeforces] Round 335 (Div. 1) B. Lazy StudentRead more
[Codeforces] Round 340 (Div. 2) D. PolylineRead more
[Codeforces] Round 341 (Div. 2) C. Wet Shark and FlowersRead more
[Codeforces] Educational Round 7 C. Not Equal on a SegmentRead more
[Codeforces] Round 342 (Div. 2) A. Guest From the PastRead more
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[CS Academy] Distinct PalindromesRead more
[CS Academy] Array ColoringRead more