January Challenge 2014
Please like me, Chef and Feedback
February Challenge 2014
Longest Common Pattern, Little Elephant and Subarrays
March Challenge 2014
Walk, Little Chef and Numbers
June Challenge 2014
Guessing Game, Forgot Password, Chef and Subarray
July Challenge 2014
Garden Game, Chef and Frogs, Count Substrings, Reach The Point
August Challenge 2014
The Leaking Robot, Chef and Gift
October Challenge 2014
Remy paints the fence, Chef and Ground, Magical Girl and Colored Liquid Potions
January Challenge 2015
Chef and A Large Permutation, Gcd Queries, One Dimensional Kingdoms, Chef and Stones, Sereja and Number Division 2, Sereja and Votes
February Challenge 2015
Chef and Chain, Chef and Strange Formula, Chef and Complex String Coverage, Chef and Strings, Let us play with rank list, Jigsaw Puzzle Solving, Chef and Equality
March Challenge 2015
Sign Wave, Devu and his Class, Chef and Notebooks
April Challenge 2015
Chef and Interview, Broken Telephone
May Challenge 2015
Set Difference , Chef and new recipe
June Challenge 2015
Steady tables, Chef and Memory Limit, Chef and Polygons
May Cook-Off 2015
Devu and friendship testing
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle
India