September Challenge 2015
Count Steps in Matrix, Chain of Doughnuts
October Cook-Off 2015
Almost Sorted Permutation
May Challenge 2016
Chef and Balls, Forest Gathering, Chef and Big Soccer, Laddu
September Challenge 2016
Chef and digits of a number, Faded Palindromes
October Challenge 2016
Chef and Three Dogs, Fenwick Iterations, Chef and Keyboard
February Challenge 2017
Chef and His Apartment Dues
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, Whats in the Name, Calculator , IPC Trainers
Bangladesh