December Challenge 2018 Division 2
Chef and Interactive Contests
November Challenge 2018 Division 2
Chef and Difficult Contests
August Challenge 2019 Division 2
Dilemma, Football, Distribute Apples
September Challenge 2019 Division 2
Easy Fibonacci, Chef and Interesting Subsequences , Chef Designed a Network
October Challenge 2019 Division 2
Even Edges, Array Modification, Operations on a Matrix, Phone Prices
November Challenge 2019 Division 2
Hard Sequence, Weapon Value
December Challenge 2019 Division 2
Addition, That Is My Score!, Binary XOR, Plus Multiply, Easy Subsequence Selection
January Challenge 2020 Division 2
Chef and Dynamo, Doraemon, Equality, Breaking Bricks
February Challenge 2020 Division 2
The Theatre Problem, Hard Cash, School of Geometry, No Change Required
January Lunchtime 2020 Division 2
Bob and His Friends, Chef and Street Food
June Challenge 2020 Division 2
Even Matrix, Chef and Price Control, Chef and String, Chef and Icecream, The Tom and Jerry Game!
September Challenge 2020 Division 2
A Problem on Sticks, Ada Matrix
June Long One 2022 Division 3 (Rated)
Full Path Eraser, Subscriptions, Divisible by i , Possible GCD, Alternate Additions, Equal Strings
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