December Challenge 2018 Division 2
Chef and Interactive Contests
April Cook-Off 2019 Division 2
Making a Meal, Chef Learning Hungarian Algorithm
May Cook-Off 2019 Division 2
Chain Reaction, Recover the Sequence
August Challenge 2019 Division 2
Dilemma, Football, Distribute Apples, Zombie and the Caves
September Challenge 2019 Division 2
Chef and Interesting Subsequences , Chef Designed a Network, Easy Fibonacci
October Challenge 2019 Division 2
Even Edges, Missing Number, Chef and Maximum Star Value, Array Modification, Operations on a Matrix, Phone Prices
November Challenge 2019 Division 2
Physical Exercise, Hard Sequence, Smallest Beautiful Number, Weapon Value
December Challenge 2019 Division 2
Plus Multiply, Addition, That Is My Score!, Binary XOR, Easy Subsequence Selection
January Challenge 2020 Division 2
Chef and Dynamo, Doraemon, Equality, Breaking Bricks
May Challenge 2020 Division 2
Triple Sort, Coronavirus Spread, Isolation Centers
January Cook-Off 2020 Division 2
Chef Chick, Exam Cheating
January Lunchtime 2020 Division 2
Bob and His Friends, Chef and Street Food, Under the Tunnels
December Challenge 2020 Division 2
Hail XOR, Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution
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