March Challenge 2020 Division 2
Pintu and Fruits, XOR Engine
April Challenge 2020 Division 2
Strange Number, Unit GCD, Sell All the Cars, COVID Pandemic and Long Queue
December Challenge 2020 Division 2
Vaccine Distribution, Vaccine Production, Even Pair Sum, Positive Prefixes
December Cook-Off 2020 Division 2
Minimum Attendance Requirement
March Challenge 2021 Division 3
Interesting XOR!, Chef and Groups, College Life 4, Consecutive Adding, Space Arrays, Wireless Electricity (Challenge), No Time to Wait
India