August Long Challenge 2017
Chef and Mover, Palindromic Game, Greedy Candidates, Chef and Rainbow Array
October Challenge 2017
Max Mex, Counter Test For CHEFSUM, A Balanced Contest
December Challenge 2017
Chef and Hamming Distance of arrays
July Cook-Off 2017
Chang and Bitwise OR, Chang and the Perfect Function
January Challenge 2018
String Merging, Partition the numbers, Maximum Score, K-Concatenation
February Challenge 2018
Chef And The Patents, Car-pal Tunnel, Permutation and Palindrome
May Challenge 2018 Division 2
Minimum Deletions, Fake Binary Search, Dibs on Fibs
India