this post was submitted on 03 Dec 2023
20 points (95.5% liked)

Advent Of Code

763 readers
1 users here now

An unofficial home for the advent of code community on programming.dev!

Advent of Code is an annual Advent calendar of small programming puzzles for a variety of skill sets and skill levels that can be solved in any programming language you like.

AoC 2023

Solution Threads

M T W T F S S
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25

Rules/Guidelines

Relevant Communities

Relevant Links

Credits

Icon base by Lorc under CC BY 3.0 with modifications to add a gradient

console.log('Hello World')

founded 1 year ago
MODERATORS
20
submitted 11 months ago* (last edited 11 months ago) by Ategon to c/advent_of_code
 

Day 3: Gear Ratios


Megathread guidelines

  • Keep top level comments as only solutions, if you want to say something other than a solution put it in a new post. (replies to comments can be whatever)
  • Code block support is not fully rolled out yet but likely will be in the middle of the event. Try to share solutions as both code blocks and using something such as https://topaz.github.io/paste/ or pastebin (code blocks to future proof it for when 0.19 comes out and since code blocks currently function in some apps and some instances as well if they are running a 0.19 beta)

FAQ


🔒This post will be unlocked when there is a decent amount of submissions on the leaderboard to avoid cheating for top spots

🔓 Edit: Post has been unlocked after 11 minutes

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 2 points 11 months ago* (last edited 11 months ago)

Language: C++

Efficiency? Elegant Code? Nope but It works. Luckily I did part 1 by looking at the symbols first anyway, so extending to part two was trivial. Also originally had a bug where I treated all symbols as cogs, not only '*'. Interestingly it worked anyway as only '*'s had two adjacent numbers in my data. It is fixed in this version. Hacked together combined code (originally I did each part as separate programs but they shared so much that I ended up combining then so the post is shorter): https://pastebin.com/Dij2XSYe

Edit: anything in angle brackets is not displaying even with backslashes, idk why but i have moved the code to a pastebin.