August Challenge 2020 Division 2
Another Card Game Problem, Chef and Linear Chess, Smallest KMP, Chef Wars - Return of the Jedi
September Challenge 2020 Division 2
Chefina and Swap, A Problem on Sticks, Ada Matrix, Coronavirus Spread 2
October Challenge 2020 Division 2
Chef and Easy Queries, Covid Run, Positive AND
November Challenge 2020 Division 2
Restore Sequence, Ada and Dishes
December Challenge 2020 Division 2
Even Pair Sum, Vaccine Production, Vaccine Distribution
November Cook-Off 2020 Division 2
Chef and IPC Certificates
September Lunchtime 2020 Division 2
GCD operations, Watermelon, Root the Tree
January Challenge 2021 Division 3
Fair Elections, Chef and Division 3, Encoded String
February Challenge 2021 Division 3
Maximise Function, Highest Divisor
May Challenge 2021 Division 3 (Rated)
Tic Tac Toe, Solubility, Golf, Xor Equality, Tree House
July Challenge 2021 Division 3 (Rated)
XxOoRr, Optimal Denomination, Maximum Production, Relativity
August Challenge 2021 Division 2 (Unrated)
Problem Difficulties, Olympics Ranking
India