I like how the day 14 puzzle sounds, because I think it’ll give me an opportunity to show off yet another way to have Rust embedded in a web page.

But first…

Let me guess: parsing?

You bet your furry ass, parsing.

The input looks something like this:

498,4 -> 498,6 -> 496,6
503,4 -> 502,4 -> 502,9 -> 494,9

And each line is essentially… a polyline: we’re supposed to draw lines between every point on the path, and that determines rocks on the map.