September Challenge 2020 Division 2
A Problem on Sticks, Chefina and Swap, Coronavirus Spread 2, Ada Matrix
October Challenge 2020 Division 2
Positive AND, Replace for X, Adding Squares, Covid Run, Chef and Easy Queries
November Challenge 2020 Division 2
Magical Candy Store, Iron, Magnet and Wall, Ada and Dishes, Restore Sequence
December Challenge 2020 Division 2
Hail XOR, String Operations, Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution
October Cook-Off 2020 Division 2
Decreasing Srrnmieeda, Split the Str Ing
October Lunchtime 2020 Division 2
AND Plus OR, Chef Is Just Throwing Random Words
February Challenge 2021 Division 2
Frog Sort, Team Name, Another Tree with Number Theory, Prime Game, Maximise Function
March Challenge 2021 Division 2
Space Arrays, College Life 4, Interesting XOR!
May Cook-Off 2021 Division 3
The Last Problem, Marathon, Vaccine Drive, Chef and Subarrays
May Challenge 2021 Division 2 (Rated)
Xor Equality, Tic Tac Toe
SnackDown 2021 - Online Qualifiers
Lucky Number, Maximum Number Of Distinct Elements
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