September Challenge 2015
Count Steps in Matrix, Chain of Doughnuts
October Challenge 2015
Time measure, Count Subarrays, Who dares to be a millionaire
March Challenge 2016
Palindromic substrings, maximize the sum
April Challenge 2016
Chef and Ballons, Chef And Coloring, Chef And Magical Path, Help Watson Escape
June Challenge 2016
Chef And Binary Operation, Chef and Coins Game, Devu and an Array
September Challenge 2016
Chef and digits of a number, Chef and calculation, Faded Palindromes
March Challenge 2017
Cooking Schedule, Xenny and Alternating Tasks, Bear and Extra Number, (CH) Bear and Sorted Rows, Bandwidth of a matrix
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets
India