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36817 Dreamoon and WiFi bitmasks brute force combinatorics dp math probabilities Statement B Codeforces Round 272 (Div. 2) {476} PROGRAMMING 1300
3146 Jerry's Protest brute force combinatorics dp probabilities Statement D 8VC Venture Cup 2016 - Elimination Round {626} PROGRAMMING 23522 1800
2983 Tree Array brute force combinatorics dp math probabilities trees Statement B Codeforces Round 728 (Div. 1) {1540} PROGRAMMING 1250.0 Tutorial