bjorng
Note: This topic is to talk about Day 2 of the Advent of Code 2019 .
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bjorng
Here is my solution.
sasajuric
This is my take. It’s not super fast (takes about 2 sec on my machine for part 2), but does the job.
The most interesting part to me is instruction execution. I define the instruction mapping, and then have a generic exec function which interprets the instruction, fetching the correct amount of arguments based on the arity.
qhwa
Nice solution based on
Stream, andFunction.info/1I’ve never thought about beforeHere’s my version.
I did the input parsing in compile time so it was a bit faster. I found that in later puzzles the input might take more time to parse (it happened before).
faried
I’m learning Elixir, and didn’t know about
Enum.find; I couldn’t figure out how to do an early return from insidefor noun <- 0..100, verb <- 0..100, do: ..., so I picked a terrible way to do handle it: spawn 10k processes! (I finished reading the Concurrent Programming section of Programming Elixir last night.)What’s interesting is that I read sasajuric’s solution, adapted it, and it seems to run slower (!) than what I have: 175769 microseconds for my part2, 682567 for theirs. Maybe it’s because of all the destructuring? Both solutions in one file.
egze
Here is mine: aoc/lib/aoc/y2019/d2.ex at master · egze/aoc · GitHub
Thanks @NobbZ for the boilerplate.
xfix
I’m learning Elixir currently, and here is my mine: lib/day2.ex · master · Konrad Borowski / advent_of_code_2019 · GitLab
I’m pretty sure it can be improved, but I quite like what I have here.
NobbZ
Finaly I found some time to do it. And a small typo took me half an hour to figure out the problem… I did
for noun <- 0..99, verb <- 0..9 do … end…egze
That’s cool. Didn’t know about
:arrayfrom Erlang.sasajuric
My first guess would be that your solution is faster b/c you’re using spawn, which means you’re leveraging multiple cores. The
Enum.findversion is sequential.egze
How about we get a little private leaderboard for elixirforum going?
Because the public leader board is insane, people solve the challenges in minutes. wtf