September Challenge 2015
Count Steps in Matrix, Chain of Doughnuts
October Challenge 2015
Time measure, Count Subarrays, Who dares to be a millionaire
November Challenge 2015
Eugene and function, Chef and cakes
December Challenge 2015
Chef and the stones, Oracle Devu and Longest Common Subsequence
September Lunchtime 2015
Sum of palindromic numbers
January Long Challenge 2016
Rupsa and the Game, Devu and Perfume, Chef and Time Machine, Churu and Balls
February Challenge 2016
Chef and Strange Operations, Chef-Detective
March Challenge 2016
Palindromic substrings, maximize the sum, Chef And Special Dishes
April Challenge 2016
Chef And Coloring, Chef And Magical Path, Help Watson Escape, Chef and Ballons
June Challenge 2016
Chef And The Hiring Event, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Devu and an Array
August Challenge 2016
Chef and Circle Run, Chef and Chocolate, Chef and Round Run
September Challenge 2016
Chef and digits of a number, Chef and calculation, Faded Palindromes, Dividing Machine, Chef and Friends
December Challenge 2016
Train Partner, Kth Max Subarray, Kirito in labyrinth, Our Base is Under Attack
August Cook-Off 2016
Tweedle-Dee and Tweedle-Dum
July Lunchtime 2016
Drumpf for President!, Lumpy - The Bus Driver
India