February Challenge 2019 Division 2
Chef and Secret Ingredients, Appy and Contest
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining
September Challenge 2019 Division 2
Chef and Good Subsequences
December Challenge 2019 Division 2
That Is My Score!, Addition, Easy Subsequence Selection, Binary XOR, Plus Multiply
February Challenge 2020 Division 2
Chef and Railway Stations, No Change Required, The Theatre Problem, School of Geometry, Hard Cash, Long Contest and Cook Off Overlaps
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
April Cook-Off 2020 Division 2
Matrix Decomposition, Lift Requests, Simple Operations
February Lunchtime 2020 Division 2
At the Gates, Swapping to Palindrome, Not All Flavours
June Challenge 2020 Division 2
The Tom and Jerry Game!, Chef and Price Control, Chef and String, Chef and Icecream, Even Matrix
August Cook-Off 2020 Division 2
Polygon Relationship, Chef and Work, K-Foldable String
SnackDown 2021 - Online Qualifiers
Lucky Number, Maximum Number Of Distinct Elements
Bangladesh