December Challenge 2019 Division 2
Plus Multiply, Binary XOR, Easy Subsequence Selection, That Is My Score!, Addition
December Lunchtime 2019 Division 2
The Evil Professor, Stupid Machine, Check Algorithm
January Challenge 2020 Division 2
Chef and Dynamo, (Challenge) Building Anthills, Breaking Bricks, English, Chefina and Prefix Suffix Sums, Equality, Doofish Matrix, Doraemon
February Challenge 2020 Division 1
Chef and Railway Stations, Long Contest and Cook Off Overlaps, (Challenge) Raisins, Hard Cash, School of Geometry, The Theatre Problem, No Change Required, Expected Change
April Challenge 2020 Division 1
Strange Number, Squared Subsequences, Perfect Power Divisors, Ready Bitwise, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue
ENIGMA - PLINTH'20 LNMIIT (Rated for all)
Minion AND Range, Recruit Villagers
India