July Challenge 2020 Division 2
LCM Constraints, Chefina and Swaps, Chef and Dragon Dens, Missing a Point, Doctor Chef, Expected Repetitions, Chef and Card Game, Chef and Strings, Ada King
August Challenge 2020 Division 2
Chef and Linear Chess, Chef and Wedding Arrangements, Smallest KMP, Another Card Game Problem, Chef Wars - Return of the Jedi, Subsequence Frequency Counting
October Challenge 2020 Division 1
Inversions, Positive AND, Replace for X, D-Dimensional MST, Adding Squares
October Lunchtime 2020 Division 1
Chef Likes Good Sequences, Chef Is Just Throwing Random Words, Counting Spaghetti, Cute Chef Gift
China