July Challenge 2020 Division 2
Chefina and Swaps, Chef and Dragon Dens, Missing a Point, Doctor Chef, Chef and Card Game, Chef and Strings, Ada King
August Challenge 2020 Division 1
Insanely Hard School Exams, Subsequence Frequency Counting, Smallest KMP, Chef Thanos Wants Perfect Balance, Chef and Wedding Arrangements
September Challenge 2020 Division 1
Find XOR, Ada Matrix, Divide Candies, Chef and Trump Cards, Chefina and Swap
July Cook-Off 2020 Division 2
Even-tual Reduction, OR-thodox Distinction
June Lunchtime 2020 Division 2
Maximum AND, Chef and Demonetisation, Increasing Decreasing
SnackDown 2021 - Online Qualifiers
Lucky Number, Maximum Number Of Distinct Elements
SnackDown 2021 - Online Round 1A
Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM
India