I got to use `window`, so that's always a good tim...

# advent-of-code

[todd.ginsberg]

I got to use window, so that's always a good time. 🙂

[andyb]

Doh, forgot the windowed() function. That would make my code a lot cleaner.

[andyb]

Changed my code to use windowed() on my string rather than using slices & it seemed to run much slower. 😞