What is Advent Of Code? 🎄

Advent of Code is an Advent calendar of small programming puzzles for a variety of skill sets 
and skill levels that can be solved in any programming language you like. 
People use them as a speed contest, interview prep, company training, university 
coursework, practice problems, or to challenge each other.

You don't need a computer science background to participate - just a little programming knowledge 
and some problem solving skills will get you pretty far. Nor do you need a fancy computer; 
every problem has a solution that completes in at most 15 seconds on ten-year-old hardware.

My solutions will be posted here!