February Challenge 2021 Division 3
Team Name, Another Tree with Number Theory, Chef and Meetings, Prime Game, Multiple Games, XOR Sums, Maximise Function, Highest Divisor, Frog Sort
March Challenge 2021 Division 2
Space Arrays, Maximum Topological Sort, Random Walk Queries, Locked Safe, Paparazzi Gennady, Consecutive Adding, College Life 4, Dense Graph, Interesting XOR!
April Challenge 2021 Division 2
Binary String MEX, Tree Permutations, Worthy Matrix, Destroy the EMP Chip, Chef and Pair Flips, String Power, Chef and Dice, Boolean Game
April Cook-Off 2021 Division 1
Tree Distances, OR of ANDs
