December Challenge 2018 Division 2
Chef and Interactive XOR, Max and Electrical Panel, Chef and An Ideal Problem, Chef and Interactive Contests
November Challenge 2018 Division 2
Chef and Ridges, Appy Loves One, Chef, Primes and Trees (Challenge), Chef and Difficult Contests, Chef and Happiness
December Lunchtime 2018 Division 2
Print Pattern, Age Calculator
March Challenge 2019 Division 2
Chef and Number Game, Chef and a Beautiful Digit
July Challenge 2019 Division 2
Minimum and Maximum, Chef and Mean
August Challenge 2019 Division 2
Zombie and the Caves, Distribute Apples, Dilemma, Guddu and his Mother, Football
October Challenge 2019 Division 2
Array Modification, Operations on a Matrix, Phone Prices
November Challenge 2019 Division 2
Hard Sequence, Weapon Value
December Challenge 2019 Division 2
Plus Multiply, Easy Subsequence Selection, That Is My Score!
January Challenge 2020 Division 2
Chef and Dynamo, Breaking Bricks
February Challenge 2020 Division 2
School of Geometry, Hard Cash
July Challenge 2020 Division 2
Ada King, Chef and Card Game, Chef and Strings
October Challenge 2020 Division 2
Covid Run, Chef and Easy Queries
December Challenge 2021 Division 3 (Rated)
Utkarsh and Placement tests
Taiwan