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Practice: 

Life, the Universe, and Everything, Chef And Land Labeling, Balancing Network Revisited, Inversions Retrieval

May Challenge 2019 Division 2: 

Binary Movements, Matches, Trees and Degrees, Reduce to One, Where to Build the Roads, Ada Pawns, Ada Rooks 2

June Challenge 2019 Division 2: 

Lent Money, (Challenge) SnackDown 99, Sum and GCD, Intersecting Paths, Chef and Ingredients, Guddu on a Date, Chef and Proxy, Road Signs

July Challenge 2019 Division 1: 

Maximum and Minimum, Circular Merging, LOVEMUFFIN, Guess the Prime!, Hit the Coconuts, Snake and Apple Tree, Codechef War

August Challenge 2019 Division 1: 

Guddu and his Mother, Encoding, Dilemma, Maximize an Expression, Chef and Gordon Ramsay, Complement Spanning Trees

September Challenge 2019 Division 1: 

Fuzzy Linear Combinations, (Challenge) Sebi and CPU Design, Chef Designed a Network, Power Sum, Dodgers, Doofish Set, Expected GCD, Biladerim Icin

October Challenge 2019 Division 1: 

Faulty System, (Challenge) Maximizing LIS, Bacterial Reproduction, Array Modification, Even Edges, Queries on Matrix, Chef and Maximum Star Value

November Challenge 2019 Division 1: 

Physical Exercise, Smallest Beautiful Number, From Zero to Infinity, A Simple Game, Single Point of Failure, Winning Ways, Pretty Boxes, (Challenge) Coloring Triangulations, D-Dart

December Challenge 2019 Division 1: 

(Challenge) Cubical Virus, Addition, Test Generation, Sticky Notes, Binomial Fever, Binary XOR, Chefina and Ranges, Scoring Pairs

January Challenge 2020 Division 1: 

Chefland Army, (Challenge) Building Anthills, Army of Me, English, Chefina and Prefix Suffix Sums, Doofish Matrix, Doraemon, Chef and Dynamo

March Challenge 2020 Division 1: 

Chef and DAG, Break, Winning Ways 2, Lasers Everywhere, Inverse of a Function, Lasers Everywhere Alternative, (Challenge) 300 IQ Ants, Good Subsequences, Egg-free DAG

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