August Challenge 2019 Division 2
Encoding, Dilemma, Maximize an Expression, Chef and Gordon Ramsay, Guddu and his Mother
September Challenge 2019 Division 2
Power Sum, Doofish Set, Expected GCD
September Lunchtime 2019 Division 2
Ice Cream Queue, Treeversion
October Challenge 2019 Division 2
Queries on Matrix, Even Edges, Bacterial Reproduction
November Challenge 2019 Division 2
Winning Ways, D-Dart, Pretty Boxes, Weapon Value
December Challenge 2019 Division 2
Plus Multiply, Binomial Fever, Scoring Pairs
January Challenge 2020 Division 2
Army of Me, Breaking Bricks
June Challenge 2020 Division 2
Convenient Airports, Danya and Different Values
United States