February Challenge 2020 Division 2
Hard Cash, (Challenge) Raisins, School of Geometry
March Challenge 2020 Division 2
XOR Engine, Pintu and Fruits
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
June Challenge 2020 Division 2
Chef and Icecream, Chef and String, Chef and Price Control
July Challenge 2020 Division 2
Chef and Card Game, Chef and Strings
October Challenge 2020 Division 2
Positive AND, Chef and Easy Queries, Covid Run
November Challenge 2020 Division 2
Restore Sequence, Ada and Dishes
December Challenge 2020 Division 2
Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution
July Challenge 2021 Division 3 (Rated)
Maximum Production, Relativity
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