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613B - Skills (Codeforces - Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2)) categories

Category Problems Count
1 brute force 494
2 Codeforces Div. 2 - D Problems 443
3 Best Problem Setters 410
4 Binary Search & Ternary Search 352
5 two pointers 128