October Challenge 2015
Count Subarrays, Who dares to be a millionaire, Time measure
September Lunchtime 2015
Sum of palindromic numbers
March Challenge 2016
Palindromic substrings, maximize the sum, Chef And Special Dishes
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 Binary Operation, Chef and Coins Game
September Challenge 2016
Chef and digits of a number, Faded Palindromes, Chef and calculation
October Challenge 2016
Chef and Keyboard, Chef and Three Dogs
March Challenge 2017
Xenny and Alternating Tasks, Bear and Extra Number
June Challenge 2017
A Good Set, Xenny and Coin Rankings
India