February Cook-Off 2018
Chef and Cook-Off, Chef and Line
March Cook-off 2018 Division 2
Chef Goes to the Cinema, Chef Restores a Matrix, Chef Judges a Competition
August Cook-Off 2018 Division 1
GukiZ and Candies, Mixi Game
April Challenge 2018 Division 1
Cutting Plants, Highway Crossing, Count Good Prefixes
April Challenge 2019 Division 1
Playing with Numbers, Subtree Removal
August Challenge 2019 Division 1
Guddu and his Mother, Dilemma
October Lunchtime 2019 Division 2
Khaled in HIT, Box Game, Counting Inversions Revisited
November Challenge 2019 Division 2
Physical Exercise, Hard Sequence, Weapon Value, Chef and Minimum Colouring
December Challenge 2019 Division 2
Plus Multiply, Binary XOR, Easy Subsequence Selection, That Is My Score!, Addition
December Long 2022 Division 2 (Unrated)
Gcd of Subarrays, Maximise XOR
Bangladesh