September Challenge 2019 Division 2
Chef and Good Subsequences, Easy Fibonacci, Chef Designed a Network, Chef and Interesting Subsequences
September Lunchtime 2019 Division 2
Chef Feeds Cats, Chef and Football Match
October Challenge 2019 Division 2
Phone Prices, Operations on a Matrix, Array Modification, Missing Number, Even Edges
October Lunchtime 2019 Division 2
Khaled in HIT, Counting Inversions Revisited
November Challenge 2019 Division 2
Hard Sequence, A Simple Game, Weapon Value
November Lunchtime 2019 Division 2
Planting Trees, Compress the List
December Challenge 2019 Division 2
(Challenge) Cubical Virus, Addition, That Is My Score!, Sticky Notes, Binary XOR, Plus Multiply, Chefina and Ranges, Easy Subsequence Selection
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon, English
February Challenge 2020 Division 1
Long Contest and Cook Off Overlaps, (Challenge) Raisins, Hard Cash, The Theatre Problem, No Change Required, Chef and Railway Stations, School of Geometry
July Challenge 2020 Division 1
Doctor Chef, Missing a Point, Chefina and Swaps
August Challenge 2020 Division 1
Insanely Hard School Exams, Subsequence Frequency Counting, Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP, Chef Thanos Wants Perfect Balance, Chef and Wedding Arrangements
India