February Challenge 2017
Chef and His Apartment Dues
March Challenge 2017
Xenny and Alternating Tasks, Bear and Extra Number, (CH) Bear and Sorted Rows, Bandwidth of a matrix
May Challenge 2017
Courses in an university, Median of adjacent maximum numbers, Chef and his daily routine
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets
July Challenge 2017
Chef and Sign Sequences, IPC Trainers, Calculator , Whats in the Name
October Challenge 2017
Chef and a great voluntary Program, Max Mex, Counter Test For CHEFSUM, A Balanced Contest
October Cook-Off 2017
Chef and Employment Test, Chef and Weird Queries
June Lunchtime 2017
Maximum Unique Segment, Two Numbers
India