March Challenge 2016
Chef And Special Dishes, Palindromic substrings
April Challenge 2016
Chef and Ballons, Chef And Magical Path, Chef And Coloring, Help Watson Escape
May Challenge 2016
Chef and Balls, Forest Gathering, Laddu
June Challenge 2016
Chef and Coins Game, Devu and an Array
July Challenge 2016
Chef and Tetris, Andrash and Stipendium
August Challenge 2016
Chef and Chocolate, Chef and Round Run
September Challenge 2016
Chef and digits of a number, Faded Palindromes, Chef and calculation
October Challenge 2016
Sereja and Progressions, Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs
November Challenge 2016
Chef and squares, Task for Alexey
July Cook-Off 2016
Chef and Proportion, Chef and Numbers
April Challenge 2017
Bear and Row 01, Similar Dishes, Dish Of Life
May Challenge 2017
Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings
December Challenge 2020 Division 2
Even Pair Sum, Vaccine Production, Vaccine Distribution
India