August Long Challenge 2017
Chef and Mover, Palindromic Game, Greedy Candidates, Chef and Rainbow Array
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
October Challenge 2017
Chef and a great voluntary Program, Max Mex, Counter Test For CHEFSUM, A Balanced Contest
December Challenge 2017
Total Diamonds, Chef and Hamming Distance of arrays, Penalty Shoot-out, Chef And his Cake, Chef and Universe
July Cook-Off 2017
Chang and the Perfect Function
September Cook-Off 2017
Statistics Construction, Subsequence Equality
October Cook-Off 2017
Chef and Employment Test, Chef and Weird Queries
September Lunchtime 2017
Chef and Cook-Off Contests
India