March Challenge 2020 Division 2
Pintu and Fruits, XOR Engine
April Challenge 2020 Division 2
Strange Number, Squared Subsequences, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
April Cook-Off 2020 Division 2
Matrix Decomposition, Lift Requests
May Cook-Off 2020 Division 2
Chef and Recipe, Chef, Chefina and Their Friendship
May Lunchtime 2020 Division 2
Weird Walk, Lost Weekends
June Challenge 2020 Division 2
Chef and Price Control, Chef and String, Covid Sampling (Challenge), The Tom and Jerry Game!, Even Matrix, Chef and Icecream
July Challenge 2020 Division 2
Ada King, Missing a Point, Chef and Card Game, Chef and Strings
August Challenge 2020 Division 2
Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP
October Challenge 2020 Division 2
Positive AND, Replace for X, Covid Run, Chef and Easy Queries
January Challenge 2021 Division 2
Watching CPL, Fair Elections
December Challenge 2020 Division 2
Hail XOR, Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution
India