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611F - New Year and Cleaning (Codeforces - Good Bye 2015) categories

Category Problems Count
1 implementation 1055
2 Best Problem Setters 410
3 Binary Search & Ternary Search 352
4 Codeforces Div. 1, D 209
5 Codeforces Div. 2 - F Problems 119
6 #Errichto 78