October Challenge 2016
Chef and Keyboard, Big Queries, Fenwick Iterations, Chef and Three Dogs, Power Sums, Sereja and Progressions
December Challenge 2016
Train Partner, Chef and Finding Direction, Kirito in labyrinth, Roses for Alexey
December Lunchtime 2016
Superheroes and villains, Fly height mode
January Challenge 2017
Capital Movement, Tourists in Mancunia, Reservior, Digits Cannot Separate, Cats and Dogs
March Challenge 2017
Xenny and Alternating Tasks, Bear and Extra Number, Bandwidth of a matrix
January Cook-Off 2017
Digit Longest Increasing Subsequences, Digit Longest Increasing Subsequences 2
January Lunchtime 2017
Sealing up, Segment Queries, Nothing in Common
June Challenge 2017
Chef and Prime Queries, A Good Set, Cloning, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets
June Lunchtime 2017
Company and Club Hierarchies, Two Numbers, Maximum Unique Segment
January Lunchtime 2018
Chef and Game with Sequence, Chef and Function, Chef and Escaping from the Labyrinth
February Challenge 2018
Broken Clock, Chef And His Characters, Chef And The Patents, Chef and odd queries, Car-pal Tunnel, Permutation and Palindrome
