June Cook-Off 2019 Division 2
Multiple Choice Exam, Eat Twice
July Challenge 2019 Division 2
Guess the Prime!, Parity Again, Circular Merging, Minimum and Maximum, Chef and Mean
August Challenge 2019 Division 2
Dilemma, Zombie and the Caves, Distribute Apples, Football, Encoding, Guddu and his Mother
October Challenge 2019 Division 1
Chef and Maximum Star Value, Array Modification
February Challenge 2020 Division 2
Long Contest and Cook Off Overlaps, Hard Cash, School of Geometry, No Change Required, Expected Change, Chef and Railway Stations, The Theatre Problem
March Challenge 2020 Division 1
Chef and DAG, Winning Ways 2, Lasers Everywhere
April Challenge 2020 Division 1
Factor Tree, Leaked Answers (Challenge), Ready Bitwise, Perfect Power Divisors, Squared Subsequences, Strange Number
October Challenge 2020 Division 1
Positive AND, Replace for X
April Challenge 2021 Division 2
Binary String MEX, Worthy Matrix, Chef and Dice
SnackDown 2021 - Online Qualifiers
Lucky Number, Maximum Number Of Distinct Elements
Peru