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385C - Bear and Prime Numbers (Codeforces - Codeforces Round #226 (Div. 2)) categories

Category Problems Count
1 Dynamic Programming 1222
2 implementation 1055
3 math 684
4 data structures 496
5 brute force 494
6 Codeforces Div. 2 - C Problems 460
7 Binary Search & Ternary Search 352
8 Number Theory 254
9 CUET 56