December Challenge 2017
Chef And his Cake, Total Diamonds, Chef and Hamming Distance of arrays, Penalty Shoot-out
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle, Partition the numbers
February Challenge 2018
Chef And His Characters, Chef And The Patents, Points Inside A Polygon, Car-pal Tunnel, Permutation and Palindrome
September Challenge 2018 Division 2
Magician versus Chef, Chef and Adventures
December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
November Challenge 2018 Division 2
Chef and Happiness, Chef and Difficult Contests
August Lunchtime 2018 Division 2
Chef and Problem Setting, Chef and Eid
August Challenge 2019 Division 2
Zombie and the Caves, Distribute Apples, Football, Dilemma
October Challenge 2019 Division 2
Array Modification, Operations on a Matrix, Phone Prices
April Challenge 2020 Division 2
Strange Number, Squared Subsequences, Unit GCD, Sell All the Cars, COVID Pandemic and Long Queue
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