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[Codeforces] Beta Round 46 (Div. 2) D. GameRead more
[Codeforces] Beta Round 48 C. Three Base StationsRead more
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[Codeforces] Beta Round 54 (Div. 2) C. TreesRead more
[Codeforces] Beta Round 57 (Div. 2) D. Eternal VictoryRead more
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