January Challenge 2019 Division 2
Yet Another Problem About Sequences, Different Neighbours, Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes, A Pizza Slice
February Challenge 2019 Division 2
Manhattan Rectangle, Deputy Chef, Art of Balance, (Challenge) Chef with Orchestra in the Kitchen, Appy and Contest, Chef and Secret Ingredients, Chef and Magical Jars, Guess It Right
March Challenge 2019 Division 2
Chef got Recipes, (Challenge) Interleaving Strings, Chef and a Beautiful Digit, Yet Again a Subarray Problem, Chef and Number Game
August Challenge 2019 Division 1
Guddu and his Mother, Dilemma, Maximize an Expression, Football, Distribute Apples, Zombie and the Caves
October Challenge 2019 Division 1
Even Edges, Chef and Maximum Star Value, Array Modification, (Challenge) Maximizing LIS
Biteration #2 (Rated for Division 2)
A - Books, C - Chef and Maths
India