November Challenge 2014
Distinct Characters Subsequence
January Challenge 2015
Chef and Stones, One Dimensional Kingdoms
February Challenge 2015
Chef and Chain, Let us play with rank list, Chef and Equality
March Challenge 2015
Chef and Notebooks, Sign Wave
April Challenge 2015
Chef and Piano Scales, Chef and Interview, Broken Telephone
August Challenge 2015
Gravity Guy, Aditi and Magic Trick
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix
October Challenge 2015
Who dares to be a millionaire, Count Subarrays, Time measure
March Challenge 2016
Palindromic substrings, maximize the sum, Chef And Special Dishes
India