October Challenge 2019 Division 2
Chef and Maximum Star Value
November Challenge 2019 Division 2
Physical Exercise, Hard Sequence, A Simple Game, Weapon Value
December Lunchtime 2019 Division 2
Stupid Machine, Check Algorithm
January Challenge 2020 Division 2
Breaking Bricks, Equality, Doraemon, Chef and Dynamo
February Challenge 2020 Division 2
No Change Required, The Theatre Problem, School of Geometry, Hard Cash, (Challenge) Raisins, Long Contest and Cook Off Overlaps
May Challenge 2020 Division 1
Triple Sort, Chef and Bitwise Product
April Cook-Off 2020 Division 2
Matrix Decomposition, Lift Requests
India