September Challenge 2020 Division 2
A Problem on Sticks, Ada Matrix
October Challenge 2020 Division 2
Positive AND, Covid Run, Chef and Easy Queries
December Challenge 2020 Division 2
Vaccine Production, Vaccine Distribution, Even Pair Sum
January Challenge 2021 Division 3
Fair Elections, Chef and Division 3, Point Of Impact, Encoded String
April Challenge 2021 Division 3
Strong Language, World Record, Chef and Dice, Valid Pair
May Cook-Off 2021 Division 3
The Last Problem, Marathon, Vaccine Drive
May Challenge 2021 Division 3 (Rated)
Xor Equality, Tic Tac Toe, Golf, Solubility
June Challenge 2021 Division 2 (Unrated)
Bella ciao, Summer Heat, Bitwise Tuples
August Challenge 2021 Division 2 (Unrated)
Problem Difficulties, Olympics Ranking
September Challenge 2021 Division 2 (Unrated)
Shuffling Parities, Airline Restrictions, Travel Pass
October Challenge 2021 Division 2 (Unrated)
Longest AND Subarray, Digit Removal, MEX-OR
India