Advent of Code 2015 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? ⭐ ⭐
