February Challenge 2015
Let us play with rank list, Chef and Equality, Chef and Chain
April Challenge 2015
Chef and Interview, Broken Telephone, Chef and Piano Scales
May Challenge 2015
Set Difference , Chef and new recipe
June Challenge 2015
Chef and Polygons, Chef and Memory Limit, Chef and His Friend
July Challenge 2015
Bread, Na2a and lucky stone, Chef and Cube
August Challenge 2015
Gravity Guy, Cooking Machine
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix
October Challenge 2015
Time measure, Count Subarrays, Who dares to be a millionaire
November Challenge 2015
Eugene and function, Chef and cakes
April Cook-Off 2015
Equality, Version Control System
May Cook-Off 2015
Devu and friendship testing
August Cook-Off 2015
Chef and the Wildcard Matching
July Lunchtime 2015
Greedy puppy, Puppy and game
March Challenge 2016
Palindromic substrings, maximize the sum
October Challenge 2016
Chef and Keyboard, Chef and Three Dogs
February Challenge 2017
Chef and His Apartment Dues
April Challenge 2020 Division 2
Strange Number, Unit GCD, Sell All the Cars, COVID Pandemic and Long Queue
