NotAwfulTech

385 readers

3 users here now

a community for posting cool tech news you don’t want to sneer at

non-awfulness of tech is not required or else we wouldn’t have any posts

founded 1 year ago

MODERATORS

[email protected]

Advent of Code 2024 Week 2: this time it's all grids, all the time (awful.systems)

submitted 2 weeks ago by [email protected] to c/[email protected]

24 comments fedilink hide all child comments

The previous thread has fallen off the front page, feel free to use this for discussions on current problems

Rules: no spoilers, use the handy dandy spoiler preset to mark discussions as spoilers

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 3 points 1 week ago* (last edited 1 week ago)

13 commentary

Solved p1 by graph search before looking a bit closer on the examples and going, oh...

In pt2 I had some floating point weirdness when solving for keypress count, I was checking if the key presses where integers (can't press button A five and half times after all) by checking if A = floor(A) and sometimes A would drop to the number below when floored, i.e. it was in reality (A-1).999999999999999999999999999999999999999999999. Whatever, I rounded it away but I did spend a stupid amount of time on it because it didn't happen in the example set.