March Challenge 2017
Xenny and Alternating Tasks, Pishty and birthday, Bear and Extra Number, Bandwidth of a matrix, Cooking Schedule
April Challenge 2017
Chef and Divisor Tree, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes
May Challenge 2017
Median of adjacent maximum numbers, Blocked websites, Chef and his daily routine, Chef and Sub Array , Courses in an university
June Challenge 2017
Pairwise union of sets, Triplets, Xenny and Coin Rankings, Chef and the Feast, A Good Set, Chef and Prime Queries
July Challenge 2017
Chef and Sign Sequences, Whats in the Name, Calculator , IPC Trainers
September Challenge 2017
Sereja and Commands, Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
India