March Challenge 2013
Approximately, Tourist Translations
May Challenge 2013
Name Reduction, Your Name is Mine
August Cook-Off 2013
Chef and The Right Triangles
September Challenge 2013
Chef and Integers , CAO Stage-2
October Challenge 2013
Helping Lira, Maxim and Dividers
November Challenge 2013
Square Digit Squares, Missing some chairs, Uncle Johny, Superpowers of 2
January Challenge 2014
Please like me, Chef and Feedback
May Cook-Off 2014
Divide the Cake, Ups and Downs
April Challenge 2014
Farmer Feb, Chef and Digits, Shortest Path in Binary Trees
May Challenge 2014
Compilers and Parsers, Stone, Chef-jumping
September Challenge 2014
Factorisation, Chef and Left-Right, Fun with Rotation
November Challenge 2014
Distinct Characters Subsequence, Let us construct palindrome
January Challenge 2015
Chef and Stones, Gcd Queries
February Challenge 2015
Chef and Chain, Let us play with rank list, Chef and Equality
April Challenge 2015
Chef and Interview, Broken Telephone
September Mega Cook-Off 2015
Forgotten Language, Stacks
Bangladesh