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339A - Helpful Maths (Codeforces - Codeforces Round #197 (Div. 2)) categories

Category Problems Count
1 implementation 1053
2 Greedy 598
3 Codeforces Div. 2 - A Problems 471
4 sortings 316
5 strings 215
6 Problem list 100
7 The_scorpion 24