June Challenge 2016
Devu and an Array, Chef And Binary Operation
July Challenge 2016
Andrash and Stipendium, Chefland and Electricity
April Challenge 2017
Chef and Digits, Chef and Divisor Tree, Stable market, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes
May Challenge 2017
Courses in an university, Chef and Subsequences, Median of adjacent maximum numbers, Blocked websites, Chef and his daily routine, Gotham PD, Long Sandwich , Chef and Sub Array
June Challenge 2017
Chef and Prime Queries, A Good Set, Cloning, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets
January Challenge 2018
A humongous Query, Partition the numbers, String Merging, Rectangle, K-Concatenation, Killjee and k-th letter , Killing Monsters, Maximum Score
September Challenge 2018 Division 1
AND Square Subsegments, Sasha and Photos, Bad Shuffle
February Challenge 2020 Division 1
Chef and Railway Stations, No Change Required, Long Contest and Cook Off Overlaps
April Challenge 2020 Division 1
Squared Subsequences, Leaked Answers (Challenge), Factor Tree, Ready Bitwise, Perfect Power Divisors, Strange Number
April Cook-Off 2020 Division 1
Tower Counting, Simple Operations
RECode 12.0 (Rated for all)
Chef and String, Chef and Walk, Chef and Rotation, Chef and Or, Chef and Subsequences, Chef and Numbers
Peru