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232A - Cycles (Codeforces - Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2)) categories

Category Problems Count
1 Greedy 603
2 Codeforces Div. 2 - C Problems 460
3 Binary Search & Ternary Search 352
4 constructive algorithms 331
5 graphs 293
6 combinatorics 216