October Cook-Off 2016
ChefWatson uses Social Network, 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
January Cook-Off 2017
Digit Longest Increasing Subsequences 2
May Challenge 2017
Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers
August Long Challenge 2017
Chef and Mover, Greedy Candidates, Palindromic Game, Chef and Rainbow Array
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
August Cook-Off 2017
Matrix and Chef, Real obtuse, From heaven to earth
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle
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