Advent of Code 2015 http://adventofcode.com/2015 Problems Day 1: Not Quite Lisp Day 2: I Was Told There Would Be No Math Day 3: Perfectly Spherical Houses in a Vacuum Day 4: The Ideal Stocking Stuffer Day 5: Doesn't He Have Intern-Elves For This? Day 6: Probably a Fire Hazard Day 7: Some Assembly Required