October Challenge 2017
Chef and a great voluntary Program, Chef and Magic Arrays, A Balanced Contest, Counter Test For CHEFSUM, Max Mex, Chef and Cycled Cycles
December Challenge 2017
Chef and Universe, Total Diamonds, Chef And his Cake, Chef And Easy Xor Queries, Penalty Shoot-out, Red and blue points, Chef and Hamming Distance of arrays
July Cook-Off 2017
Chang and Bitwise OR, Chang and the Perfect Function, Chang and Perfect Quadruples
August Cook-Off 2017
Real obtuse, From heaven to earth
December Lunchtime 2017
Too Much Sweetness, Days in Month, Strange Function
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers
January Lunchtime 2018
Chef and Game with Sequence, Chef and Escaping from the Labyrinth
March Challenge 2018 DIV 1
Mix the Colors, Minion Chef and Bananas, Minions and Voting, Chef and Glove, A Big Sale, Chef and Easy Problem
March Cook-off 2018 Division 1
Chef Goes to the Cinema, Chef Restores a Matrix
ALKHWARIZM (Rated)
Harry in the Chamber of Secrets, Help Voldemort, Hedwig The Smart Bird, Sam, The Charming Angel
