sb8244
Note: This topic is to talk about Day 10 of the Advent of Code 2019 .
There is a private leaderboard for elixirforum members. You can join it by following this link and entering the following code:
39276-eeb74f9a
Where Next?
Trending in Challenges
Other Trending Topics
Latest on Elixir Forum
Sponsor Spotlight
Build Elixir applications with speed and confidence.
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #library
- #deployment
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #elixirconf
- #channels
- #exunit
- #discussion
- #code-sync
- #podcasts
- #javascript
- #onsite
- #dialyzer
- #docker
- #authentication
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #ai
- #ecto-query
- #elixirconf-us
- #blog-post
- #elixir-ls
- #phoenix_html
- #iex
- #graphql
- #genstage
- #websockets
- #supervisor
- #advent-of-code
- #distillery
- #processes
- #elixirconf-eu
- #api
- #forms
- #metaprogramming
- #hex
Our Sponsors
Build Elixir applications with speed and confidence.
Supporting innovation across the BEAM ecosystem.
We build reliable cloud platforms for business-critical systems.
Catch errors, track performance, monitor hosts and more.
Error tracking, logs, uptime, and Just Enough APM. Built for developers.
Master modern tools, write cleaner code, and tackle real-world challenges.
Bringing learning, work and compliance together since 1987.
The deployment platform built for Elixir: PaaS ease, VPS control.
The team behind Membrane, Popcorn, LiveDebugger. Available for hire.
Courses that'll move you from confusion to "Aha, now I get it!"
Most Liked- Show Best Posts
- Show All (oldest first)
- Show All (newest first)
sb8244
My solution is here. I actually documented the approach in pt1 / pt2 at the top. I won’t paste it here to avoid spoilers, it’s still early on the day.
ferd
High school math is needed, but I decided to avoid it for as long as I can. It takes about 2 hours to get the whole thing going (and I’ve had to spend my morning, lunch, and breaks on this!) but I end up with a fully functional solution for arbitrary-sized maps and positions. It ought to be fast enough, finding both the solution to part 1 and part 2 in under 100ms combined by doing some fancy filtering.
Source at day10.erl · GitHub
cblavier
My solution : advent/lib/2019/day10 at master · cblavier/advent · GitHub
Wasted at least 1 hour this morning going totally wrong (I was only dealing with 8 different angles)
And then I used the high school maths mentioned by @ferd
Last Post!
jacopofar
I’m very happy I found this forum! I just finished day 10 here the code, and the tests but it’s almost the first time I use Elixir and the Phoenix framework so my code can probably be much better