August Challenge 2019 Division 2
Encoding, Dilemma, Football, Distribute Apples, Zombie and the Caves, Guddu and his Mother
September Challenge 2019 Division 2
Easy Fibonacci, Chef and Interesting Subsequences
October Challenge 2019 Division 2
Chef and Maximum Star Value, Phone Prices, Operations on a Matrix, Array Modification, Missing Number
November Challenge 2019 Division 2
Hard Sequence, Weapon Value
December Challenge 2019 Division 2
Plus Multiply, Addition, That Is My Score!, (Challenge) Cubical Virus, Sticky Notes, Easy Subsequence Selection, Binary XOR, Chefina and Ranges
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon, Chefina and Prefix Suffix Sums, English, Chefland Army, (Challenge) Building Anthills
April Challenge 2020 Division 1
Strange Number, Squared Subsequences, Ready Bitwise, Leaked Answers (Challenge)
United States