January Lunchtime 2015
Candidate walk, Just multiply, Many bananas, Piece of cake
March Challenge 2015
Count Substrings, Chef and Notebooks, Devu and his Class, Sign Wave
April Challenge 2015
Count Sequences, Chef and Interview, Broken Telephone, Inversion sorting, Division of Lands, Chef and Piano Scales
May Challenge 2015
Set Difference , Chef and new recipe, Devu and binary String, Chef and Prime Divisors
June Challenge 2015
Chef and Memory Limit, Chef and Polygons
February Cook-Off 2015
Zombinatorial, Parenthesis with Maximum Sum Subarray, Fit Squares in Triangle, Strategy for the World Cup
April Cook-Off 2015
Lucky Fives, Version Control System, Equality, Taxi Driver, Special Agents
May Cook-Off 2015
Devu, his friends and birthday gifts, Devu and friendship testing, Devu and decorating birthday cake, Devu and most energetic minion
Canada