> the success criteria

The the success criteria is whatever you want it to be.

  * Learn a new language
  * Practice a language you already know
  * Try to solve things in a small number of lines
  * Try to solve things where the solutions run as fast as possible
  * ... any number of other personal goals
  * Try to make the leaderboard

I've been solving the older years and learning rust in the process. I made it a secondary goal that all 49 solutions should be able to run in under 1s total. 2015 was easy, 2016 less so.