January Challenge 2015
Sereja and Votes, One Dimensional Kingdoms, Gcd Queries, Chef and Stones
February Challenge 2015
Chef and Chain, Chef and Strange Formula, Chef and Strings, Let us play with rank list, Chef and Equality
March Challenge 2015
Chef and Notebooks, Sign Wave
April Challenge 2015
Count Sequences, Chef and Piano Scales, Inversion sorting, Broken Telephone, Chef and Interview
August Challenge 2015
Way Out, Gravity Guy, Cooking Machine, Aditi and Magic Trick
August Cook-Off 2015
Chef and the XORed Number , Chef and the Wildcard Matching
September Challenge 2016
Chef and Friends, Chef and calculation, Chef and digits of a number, Faded Palindromes
October Challenge 2016
Chef and Keyboard, Chef and Three Dogs
January Cook-Off 2017
Digit Longest Increasing Subsequences 2
March Challenge 2018 DIV 2
A Big Sale, Mix the Colors, Chef and Glove, Minions and Voting, Minion Chef and Bananas
April Challenge 2018 Division 1
Weight of Numbers, Average of Pairs, Count Good Prefixes
May Challenge 2018 Division 2
Mighty Friend, Minimum Deletions, Xor Again, Dibs on Fibs
Insomnia 2018 (Rated)
Split Sums, Strange Swaps
November Long 2022 Division 2 (Unrated)
MaxEdges, Split and Maximize, Spliting Balls
