November Challenge 2014
Distinct Characters Subsequence
March Challenge 2015
Chef and Notebooks, Sign Wave
April Challenge 2015
Chef and Interview, Broken Telephone, Chef and Piano Scales
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix
October Challenge 2015
Count Subarrays, Who dares to be a millionaire
May Cook-Off 2015
Devu and friendship testing
October Cook-Off 2015
Almost Sorted Permutation
July Lunchtime 2015
Greedy puppy, Puppy and game
September Lunchtime 2015
Sum of palindromic numbers
India