October Challenge 2014
Magical Girl and Colored Liquid Potions, Chef and Ground
January Challenge 2015
Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries
February Challenge 2015
Chef and Chain, Let us play with rank list, Chef and Equality
March Challenge 2015
Sign Wave, Chef and Notebooks
April Challenge 2015
Chef and Interview, Broken Telephone
May Challenge 2015
Devu and binary String, Chef and Prime Divisors, Set Difference , Chef and new recipe
June Challenge 2015
Chef and Polygons, Chef and Memory Limit, Steady tables, Chef and His Friend
July Challenge 2015
Bread, MasterChef, Na2a and lucky stone, Chef and Cube
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix
March Challenge 2016
maximize the sum, Chef And Special Dishes, Palindromic substrings
April Challenge 2016
Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring
IOPC 2017 (Rated)
The Birthday Tears, Max Out
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
India