August Challenge 2015
Gravity Guy, Cooking Machine, Aditi and Magic Trick
October Challenge 2015
Count Subarrays, Who dares to be a millionaire
February Challenge 2016
Chef and Strange Operations, Chef-Detective
March Challenge 2016
Palindromic substrings, maximize the sum
July Challenge 2016
Chefland and Electricity, Andrash and Stipendium
August Challenge 2016
Chef and Chocolate, Chef and Round Run
September Challenge 2016
Chef and digits of a number, Faded Palindromes, Chef and calculation
October Challenge 2016
Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs
November Challenge 2016
Task for Alexey, Chef and squares, Count Permutations
August Cook-Off 2016
Tweedle-Dee and Tweedle-Dum
September Cook-Off 2016
Lazy Jem, The Lost Arithmetic Sequences
January Challenge 2017
Capital Movement, Cats and Dogs, Reservior
January Cook-Off 2017
Digit Longest Increasing Subsequences 2
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