October Challenge 2015
Who dares to be a millionaire
November Cook-Off 2015
Sereja and Array and Subtracting
March Challenge 2016
Palindromic substrings, Chef And Special Dishes
April Challenge 2016
Chef And Coloring, Chef And Magical Path, Chef and Ballons
June Challenge 2016
Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Devu and an Array
September Challenge 2016
Chef and digits of a number, Faded Palindromes, Chef and calculation
October Challenge 2016
Chef and Keyboard, Chef and Three Dogs, Fenwick Iterations
June Lunchtime 2016
Collisions, One more weird game
March Challenge 2017
Cooking Schedule, Xenny and Alternating Tasks, Bear and Extra Number, (CH) Bear and Sorted Rows, Bandwidth of a matrix
January Cook-Off 2017
Digit Longest Increasing Subsequences 2
September Challenge 2020 Division 1
Chefina and Swap, Ada Matrix
India