January Challenge 2017
Capital Movement, Reservior
February Challenge 2017
Chef and Triangles, Chef and His Apartment Dues
January Cook-Off 2017
Digit Longest Increasing Subsequences 2
April Challenge 2017
Stable market, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes
August Long Challenge 2017
Chef and Mover, Greedy Candidates, Palindromic Game, Chef and Rainbow Array
September Challenge 2017
Sereja and Commands, Chef and Pick Digit, Minimum Good Permutation, Fill The Matrix, Little Chef and Sums
October Challenge 2017
A Balanced Contest, Counter Test For CHEFSUM, Max Mex, Chef and Cycled Cycles, Chef and a great voluntary Program, Chef and Magic Arrays, Shooting on the array
November Challenge 2017
Chef Hates Palindromes, Chef and Subarray Queries, Chef goes Left Right Left, Lovers Gift, Periodic Palindrome Construction, Villages and Tribes
October Cook-Off 2017
Chef and Weird Queries, Chef and Employment Test, Chef and Counting Test
September Lunchtime 2017
Chef and Dice, Chef and Cook-Off Contests
October Lunchtime 2017
Buggy Calculator, Maximum Number
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers
October Challenge 2019 Division 1
Even Edges, Chef and Maximum Star Value
India