October Challenge 2017
A Balanced Contest, Max Mex
November Challenge 2017
Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes, Chef Hates Palindromes
December Challenge 2017
Total Diamonds, Chef And his Cake, Penalty Shoot-out, Chef and Hamming Distance of arrays
November Cook-Off 2017
Random Pair, Online Chess
December Cook-Off 2017
Beautiful Array, Football Match
December Lunchtime 2017
Days in Month, Strange Function
January Challenge 2018
Partition the numbers, String Merging, Rectangle, K-Concatenation, Maximum Score
January Lunchtime 2018
Chef and Game with Sequence
February Challenge 2018
Chef And His Characters, Chef And The Patents, Points Inside A Polygon, Car-pal Tunnel, Permutation and Palindrome
March Challenge 2018 DIV 1
Mix the Colors, Minions and Voting, Chef and Easy Problem
April Challenge 2018 Division 1
Chef and Array (Challenge), Cutting Plants, Highway Crossing, Count Good Prefixes
May Challenge 2018 Division 2
Mighty Friend, Minimum Deletions, Xor Again, Dibs on Fibs
