Topic	Replies	Views	Activity
PPTEST - Editorial editorial cook39 , dynamic-programming , editorial , easy	5	6018	September 26, 2018
PPTREE - Editorial editorial bitwise , trie , dynamic-programming , cook39 , editorial , xor , medium-hard	2	7453	September 25, 2018
PPXOR - Editorial editorial editorial , easy-medium , xor , bitwise , cook39	9	6816	September 13, 2015
PPLUCKY - Editorial editorial editorial , medium , bit , segment-tree , fenwick , cook39	3	5211	August 29, 2015
PPNUM - Editorial editorial editorial , easy , ad-hoc , cook39	7	4277	October 23, 2013

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