June Challenge 2016
Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Devu and an Array, Chef And The Hiring Event
August Challenge 2016
Chef and Circle Run, Chef and Chocolate, Chef and Round Run
October Challenge 2016
Chef and Two String, Chef and Three Dogs, Fenwick Iterations, Big Queries, Chef and Keyboard
December Challenge 2016
Train Partner, Kth Max Subarray, Kirito in labyrinth, Our Base is Under Attack
July Cook-Off 2016
Chef and Proportion, Chef and Numbers
July Lunchtime 2016
Drumpf for President!, Lumpy - The Bus Driver
April Challenge 2017
Similar Dishes, Bear and Clique Distances, Bear and Row 01, Stable market, Chef and Divisor Tree, Chef and Digits, Dish Of Life
May Challenge 2017
Chef and Sub Array , Gotham PD, Chef and his daily routine, Courses in an university, Blocked websites, Median of adjacent maximum numbers, Chef and Subsequences
November Challenge 2017
Periodic Palindrome Construction
December Challenge 2017
Chef and Hamming Distance of arrays, Penalty Shoot-out, Total Diamonds, Chef And his Cake
December Cook-Off 2017
Beautiful Array, Football Match
December Lunchtime 2017
Days in Month, Strange Function
January Cook-Off 2018
Multiple of 3, Survive in ChocoLand
January Lunchtime 2018
Chef and Game with Sequence
August Challenge 2018 Division 2
Coordinate Compression , Modular GCD, Problem Sort, Sheokand and Number, Spell Bob
Bangladesh