October Challenge 2015
Count Subarrays, Who dares to be a millionaire, Time measure
March Challenge 2016
Palindromic substrings, maximize the sum
April Challenge 2016
Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring
June Challenge 2016
Devu and an Array, Chef and Coins Game, Chef And Binary Operation, Chef and Rectangle Array, Chef And The Hiring Event, Chef and Array and K
July Challenge 2016
Andrash and Stipendium, Chef and Tetris, Chef and Robots Competition, Chefland and Electricity
October Cook-Off 2016
Sherlock and the Ugly Flower, Watson asks Does Permutation Exist, ChefWatson uses Social Network
India