Sundar Rajan

Practice: 

Bytelandian gold coins, ATM, Ciel and A-B Problem, Restaurant Rating, Pizza Delivery, Dessert Wizard, The Smallest Pair, Alternating subarray prefix, Robot Walk, Chef and squares, Chairs, Real obtuse, Chef and Two Queens, Encoding, Rootless Tree, Subarray, Identical Arrays, Tweedle Graph

November Challenge 2016: 

Task for Alexey

December Challenge 2016: 

Train Partner

Past ZCO Problems: 

Tournament, Chewing, Video Game, SUPW, Smart Phone, Variation, Matched Brackets

January Challenge 2017: 

Cats and Dogs

February Challenge 2017: 

Chef and His Apartment Dues

March Challenge 2017: 

Xenny and Alternating Tasks, Bear and Extra Number, Bandwidth of a matrix

Past INOI Problems: 

Triathlon

July Challenge 2017: 

Whats in the Name, IPC Trainers, Calculator , Pishty and tree, Chef and Sign Sequences

August Long Challenge 2017: 

Chef and Rainbow Array, Chef and Mover, Palindromic Game, Greedy Candidates

September Challenge 2017: 

Chef and Pick Digit, Minimum Good Permutation, Fill The Matrix, Little Chef and Sums

October Challenge 2017: 

Chef and a great voluntary Program, Max Mex, Counter Test For CHEFSUM, A Balanced Contest

November Challenge 2017: 

Villages and Tribes

December Challenge 2017: 

Penalty Shoot-out, Chef And his Cake

October Cook-Off 2017: 

Chef and Counting Test, Chef and Employment Test, Chef and Weird Queries

October Lunchtime 2017: 

Buggy Calculator

January Challenge 2018: 

K-Concatenation, Maximum Score, Rectangle

March Challenge 2018 DIV 2: 

Chef and Easy Problem, Minion Chef and Bananas, Chef and Glove, Mix the Colors, A Big Sale

September Challenge 2018 Division 2: 

Magician versus Chef

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, Chef and Number Game, Chef and a Beautiful Digit

August Challenge 2019 Division 2: 

Guddu and his Mother, Dilemma, Football, Distribute Apples, Zombie and the Caves

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