February Challenge 2015
Chef and Strange Formula, Let us play with rank list, Chef and Equality
April Challenge 2015
Count Sequences, Chef and Interview, Broken Telephone, Chef and Piano Scales
June Challenge 2015
Chef and His Friend, Chef and Memory Limit, Chef and Polygons
August Challenge 2015
Cooking Machine, Aditi and Magic Trick, Gravity Guy, Way Out
April Cook-Off 2015
Equality, Version Control System
May Cook-Off 2015
Devu and friendship testing
August Cook-Off 2015
Chef and the XORed Number , Chef and the Wildcard Matching
September Mega Cook-Off 2015
Forgotten Language, Stacks
