Had that issue too, search in Start for "Default Apps", then scroll to the bottom and click "Choose default application by file type". Then scroll to .pdf
and choose Sumatra. The settings window may crash for some reason, but for me the file association did seem to stick after that.
Try Bricklink, I've purchased "old" sets there for a decent price. Be sure to check the seller's rating/reviews
I optimized Part1 by directly referencing workflows between each rule (instead of doing a table lookup between them), in expectation of part 2 needing increased performance. But that turned out to not be needed 😋
I had to dig through my dusty statistics knowledge for part 2, and decided to try out Mermaid.js to create a little graph of the sample input to help visualize the solution.
After that it was pretty straightforward.
@zarlin
@lemmy.world