July Challenge 2014
Count Substrings, Reach The Point
August Challenge 2014
The Leaking Robot, Chef and Gift
October Challenge 2014
Remy paints the fence, Chef and Ground, Chef and Painting, Chef and Square, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus
November Challenge 2014
The Spelling Problem, Let us construct palindrome, Chef and Red Black Tree, Distinct Characters Subsequence, Chef and Segment Game
January Challenge 2015
Sereja and Number Division 2, Chef and A Large Permutation, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries
February Challenge 2015
Chef and Chain, Chef and Strange Formula, Let us play with rank list, Chef and Equality
April Challenge 2015
Broken Telephone, Division of Lands, Chef and Piano Scales, Chef and Interview
May Challenge 2015
Devu and binary String, Chef and Prime Divisors, Set Difference , Chef and new recipe
June Challenge 2015
Steady tables, Chef and His Friend, Chef and Memory Limit, Chef and Polygons
August Challenge 2015
Gravity Guy, Aditi and Magic Trick, Cooking Machine, Way Out
October Challenge 2015
Count Subarrays, Who dares to be a millionaire
April Cook-Off 2015
Equality, Version Control System
August Cook-Off 2015
Chef and the Wildcard Matching
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
India