Finding a set of 5 5-letter words containing 25 unique letters. Somewhat optimized implementation. Total runtime: 3.4ms Inspired by: https://www.youtube.com/watch?v=_-AfhLQfb6w https://www.youtube.com/watch?v=GTsP8ss5gjk Word list original source: https://gist.github.com/cfreshman/40608e78e83eb4e1d60b285eb7e9732f