October Cook-Off 2016
Watson asks Does Permutation Exist
February Challenge 2017
Chef and His Apartment Dues
March Challenge 2017
Xenny and Alternating Tasks, Bear and Extra Number, Bandwidth of a matrix
April Challenge 2017
Similar Dishes, Bear and Row 01, Dish Of Life
May Challenge 2017
Chef and Sub Array , Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings
August Long Challenge 2017
Chef and Rainbow Array, Chef and Mover, Greedy Candidates
October Challenge 2017
Chef and a great voluntary Program, A Balanced Contest, Max Mex, Counter Test For CHEFSUM
November Challenge 2017
Chef Hates Palindromes, Chef goes Left Right Left, Villages and Tribes
March Challenge 2018 DIV 2
A Big Sale, Mix the Colors, Chef and Glove, Minion Chef and Bananas
August Challenge 2019 Division 2
Dilemma, Football, Distribute Apples
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