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8315 Bear and Three Musketeers brute force dfs and similar graphs hashing Statement B Codeforces Round 318 [RussianCodeCup Thanks-Round] (Div. 2) {574} PROGRAMMING Codeforces Round #318 [RussianCodeCup Thanks-Round] Editorial 1500
1369 C+K+S brute force constructive algorithms dfs and similar graphs greedy hashing math strings Statement C Codeforces Round 980 (Div. 1) {2023} PROGRAMMING 1500.0 135341