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1069 DZY Loves FFT probabilities Statement B Codeforces Round 254 (Div. 1) {444} PROGRAMMING Codeforces Round #254 Editorial 2400
10654 Little Pony and Expected Maximum probabilities Statement A Codeforces Round 259 (Div. 1) {453} PROGRAMMING Codeforces Round #259 Editorial 1600
2451 I'm Feeling Lucky! probabilities Statement D April Fools Contest 2018 {952} PROGRAMMING April Fools Day Contest 2018: editorial 2000