Day 7: Bridge Repair

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)
  • You can send code in code blocks by using three backticks, the code, and then three backticks or use something such as https://topaz.github.io/paste/ if you prefer sending it through a URL

FAQ

You are viewing a single thread.
View all comments View context
2 points
*

Since all operations increase the accumulator, I tried putting a guard (a <= x) in apply, but it doesn’t actually help all that much (0.65s -> 0.43s).

permalink
report
parent
reply
2 points
*

0.65 -> 0.43 sounds pretty strong, isn’t that a one-fourth speedup?

Edit: I was able to achieve a 30% speed improvement using this on my solution

permalink
report
parent
reply
2 points

It’s not insignificant, sure, but I’d prefer 10x faster :D

Plus I’m not sure it’s worth the loss of generality and readability. It is tempting to spend hours chasing this kind of optimization though!

permalink
report
parent
reply

Advent Of Code

!advent_of_code@programming.dev

Create post

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 2024

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

  • Follow the programming.dev instance rules
  • Keep all content related to advent of code in some way
  • If what youre posting relates to a day, put in brackets the year and then day number in front of the post title (e.g. [2024 Day 10])
  • When an event is running, keep solutions in the solution megathread to avoid the community getting spammed with posts

Relevant Communities

Relevant Links

Credits

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

console.log('Hello World')

Community stats

  • 478

    Monthly active users

  • 109

    Posts

  • 1.1K

    Comments