September Challenge 2014
Chef and Left-Right, Fun with Rotation
October Challenge 2014
Chef and Ground, Chef and Painting, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus
November Challenge 2014
The Spelling Problem, Chef and Churu, Let us construct palindrome, Chef and Red Black Tree, Distinct Characters Subsequence, Chef and Words, Chef and Segment Game
October Lunchtime 2014
Tanu and Head-bob, Physics Class, Cascading Style Sheets
December Lunchtime 2014
Delivery Man, Queries On Tree
January Challenge 2015
Gcd Queries, Xor Queries, One Dimensional Kingdoms, Sereja and Votes, Sereja and LCM, Chef and A Large Permutation, Sereja and Number Division 2, Queries on the String, Chef and Stones
April Challenge 2015
Count Sequences, Chef and Array, Chef and Interview, Broken Telephone, Inversion sorting, Division of Lands, Chef and Piano Scales
July Challenge 2015
Bread, Chef and Cube, Na2a and lucky stone, Addition and Multiplication
May Cook-Off 2015
Devu and friendship testing, Devu and decorating birthday cake
February Lunchtime 2015
Lucky Four, The Warehouse
March Lunchtime 2015
Saving a gift of love, Painting the Boxes, Chef Anup
June Lunchtime 2015
Chef and Bitwise OR Operation, Chef and Submatrix, Chef and Two Strings, Chef and Sets
India