November Challenge 2014
Distinct Characters Subsequence
January Challenge 2015
Sereja and Votes, Chef and Stones
February Challenge 2015
Chef and Chain, Chef and Equality
March Challenge 2015
Chef and Notebooks, Sign Wave
April Challenge 2015
Chef and Interview, Broken Telephone, Chef and Piano Scales
May Challenge 2015
Chef and new recipe, Set Difference , Chef and Prime Divisors, Devu and binary String
June Challenge 2015
Steady tables, Chef and His Friend, Chef and Memory Limit, Chef and Polygons
July Challenge 2015
Bread, Na2a and lucky stone, Chef and Cube
August Challenge 2015
Gravity Guy, Cooking Machine, Aditi and Magic Trick
October Challenge 2015
Count Subarrays, Who dares to be a millionaire, Time measure
June Cook-Off 2015
Longest non regular parentheses sub-sequence, Strange operations
August Cook-Off 2015
Chef and the XORed Number , Chef and the Wildcard Matching
September Mega Cook-Off 2015
Forgotten Language, Stacks
October Cook-Off 2015
Word Stem, Almost Sorted Permutation
February Challenge 2016
Chef and Strange Operations, Chef-Detective, Rectangles of Love, Devu and a light discussion
March Challenge 2016
Palindromic substrings, maximize the sum, Chef And Special Dishes
October Cook-Off 2016
Watson asks Does Permutation Exist, ChefWatson uses Social Network
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