April Challenge 2017
Stable market, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes, Chef and Divisor Tree
May Challenge 2017
Chef and Subsequences, Median of adjacent maximum numbers, Blocked websites, Courses in an university, Chef and his daily routine, Chef and Sub Array
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle, String Merging
January Lunchtime 2018
Chef and Game with Sequence, Chef and Escaping from the Labyrinth
October Challenge 2018 Division 1
Appy and Balloons , Beautiful Bricks, Minimize Digitsum, Chef and Surprise Chessboard
Bangladesh