March Challenge 2016
maximize the sum, Palindromic substrings
April Challenge 2016
Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring
June Challenge 2016
Chef And The Hiring Event, Chef And Binary Operation, Chef and Coins Game, Devu and an Array
September Challenge 2016
Chef and Friends, Dividing Machine, Chef and digits of a number, Faded Palindromes, Chef and calculation
November Challenge 2016
Task for Alexey, Count Permutations, Chef and squares
April Cook-Off 2016
Movie Weekend, Odd Divisors
August Cook-Off 2016
Tweedle-Dee and Tweedle-Dum
February Challenge 2017
Chef and His Apartment Dues
March Challenge 2017
Xenny and Alternating Tasks
January Cook-Off 2017
Digit Longest Increasing Subsequences 2
November Challenge 2017
Periodic Palindrome Construction
August Challenge 2018 Division 2
Problem Sort, Sheokand and Number, Spell Bob
India