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278 A Trance of Nightfall dp geometry matrices probabilities Statement E Codeforces Round 487 (Div. 2) {989} PROGRAMMING Codeforces Round #487 (Div. 2) Editorial 2900
758 Chemistry Lab dp geometry probabilities Statement F 2022-2023 ICPC, NERC, Southern and Volga Russian Regional Contest (Online Mirror, ICPC Rules, Preferably Teams) {1765} PROGRAMMING 109642 2200