October Challenge 2014
Magical Girl and Colored Liquid Potions, Chef and Ground
November Challenge 2014
Distinct Characters Subsequence
January Challenge 2015
Chef and Stones, Sereja and Votes
February Challenge 2015
Chef and Chain, Chef and Strange Formula, Chef and Strings, Let us play with rank list, Chef and Equality
April Challenge 2015
Broken Telephone, Chef and Piano Scales, Chef and Interview
October Challenge 2015
Time measure, Count Subarrays, Who dares to be a millionaire, Spheres, Rupsa and Equilateral Triangle
November Challenge 2015
Eugene and function, Chef and cakes
December Challenge 2015
Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence
August Cook-Off 2015
Chef and the Wildcard Matching, Chef and the XORed Number
July Lunchtime 2015
Greedy puppy, Puppy and game
September Lunchtime 2015
Sum of palindromic numbers
March Challenge 2016
Palindromic substrings, maximize the sum, Chef And Special Dishes
April Challenge 2016
Chef And Magical Path, Chef And Coloring, Chef and Ballons, Help Watson Escape
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
November Challenge 2017
Chef and Intersection Line, Chef Hates Palindromes, Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
India