June Challenge 2017
A Good Set, Xenny and Coin Rankings, Triplets
July Challenge 2017
Chef and Sign Sequences, Whats in the Name, Calculator
December Challenge 2017
Total Diamonds, Chef And his Cake, Penalty Shoot-out, Chef and Hamming Distance of arrays
December Cook-Off 2017
Beautiful Array, Football Match
December Lunchtime 2017
Days in Month, Strange Function
January Lunchtime 2018
Chef and Game with Sequence
February Challenge 2018
Chef And His Characters, Permutation and Palindrome
June Cook-Off 2019 Division 2
Multiple Choice Exam, Ants and Anteaters, Eat Twice
June Lunchtime 2019 Division 2
Ping Paja Pong, Magda and Silly Pairs, The Grux Permutation , Igzi and Burly Array
October Challenge 2019 Division 1
Chef and Maximum Star Value, Array Modification
Bangladesh