January Challenge 2019 Division 2
Different Neighbours, Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes, Yet Another Problem About Sequences
February Challenge 2019 Division 2
Manhattan Rectangle, Guess It Right, Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, (Challenge) Chef with Orchestra in the Kitchen, Art of Balance, Deputy Chef
March Challenge 2019 Division 2
Chef and a Beautiful Digit, (Challenge) Interleaving Strings, Yet Again a Subarray Problem, Chef and Number Game, Chef got Recipes
April Challenge 2019 Division 1
Offer for Chef, Playing with Numbers, Maximum Remaining, Subtree Removal, Moving Rectangles (Challenge)
June Challenge 2019 Division 1
Lent Money, Guddu on a Date, Chef and Ingredients, Intersecting Paths, Sum and GCD, (Challenge) SnackDown 99
July Challenge 2019 Division 1
(Challenge) Codechef War II, Minimum and Maximum, Chef and Mean , Hit the Coconuts, Codechef War, Parity Again, Guess the Prime!, Circular Merging
August Challenge 2019 Division 1
Guddu and his Mother, Encoding, Dilemma, Maximize an Expression, Chef and Gordon Ramsay, Football, Distribute Apples, Zombie and the Caves
September Challenge 2019 Division 1
Biladerim Icin, Chef and Interesting Subsequences , Chef Designed a Network, Doofish Set, Expected GCD, Fuzzy Linear Combinations
October Challenge 2019 Division 1
Even Edges, Bacterial Reproduction, Chef and Maximum Star Value, Array Modification, (Challenge) Maximizing LIS, Operations on a Matrix, Phone Prices
India