June Challenge 2014
Chef and Subarray, Guessing Game
July Challenge 2014
Count Substrings, Reach The Point
August Challenge 2014
The Leaking Robot, Cleaning Tables, Chef and Gift
September Challenge 2014
Chef and Left-Right, Fun with Rotation
October Challenge 2014
Chef and Ground, Magical Girl and Colored Liquid Potions
January Challenge 2015
Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries
February Challenge 2015
Chef and Chain, Let us play with rank list, Chef and Equality
April Challenge 2015
Broken Telephone, Chef and Piano Scales, Chef and Interview
May Challenge 2015
Chef and Prime Divisors, Set Difference , Chef and new recipe
August Challenge 2015
Way Out, Gravity Guy, Cooking Machine
April Cook-Off 2015
Equality, Version Control System
May Cook-Off 2015
Devu and friendship testing
September Challenge 2016
Chef and digits of a number
December Challenge 2019 Division 2
Plus Multiply, That Is My Score!
May Lunchtime 2020 Division 2
Weird Walk, Lost Weekends
June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control
India