This year I’m going to do my best to take a stab at this, using Elixir of course! Here’s my Day 1 solutions. I’m aiming for idiomatic elixir, that’s not too code-golfy.
https://github.com/sergiotapia/advent-of-code-2019-elixir/blob/master/day1/app-1.exs
https://github.com/sergiotapia/advent-of-code-2019-elixir/blob/master/day1/app-2.exs
Finished my pretty naive implementation as well: https://github.com/dimitarvp/aoc2019.ex/blob/master/lib/day1.ex
I opted for:
File.stream!-ing standardised file names from the priv/ project directory. You know, convenience.fuel and total_fuel functions, the latter being the recursive one.Again, pretty naive and straightforward. Comments welcome!
@sasajuric Almost like mine! I also opted for a helper module that streams the file that maps to the day in question.
def iterate(mass) do
mass
|> Stream.iterate(&fuel_required/1)
|> Enum.take_while(& &1 > 0)
|> tl() # remove the module mass which would be the first in the list
|> Enum.sum()
end
That’s really clever, I love it!
@NobbZ Really solid code.
Yeah, I have a few common helpers, but I try to keep this as small as I can. So mostly reading the file input, and a few frequently needed enum helpers.
Doing the challenge in Elixir this year. My day one solution is a little ugly but gets the job done. advent_of_code/2019/solutions/lib/day_1.ex at master · agundy/advent_of_code · GitHub
Nice. One of my top priorities are terseness and readability. But I can give up some terseness in exchange for code that’s quicker to parse for any random reading human, and it seems you are the same.
Brofist? 
My solution was pretty vanilla.
https://github.com/DarkMarmot/aoc_2019_elixir/blob/master/lib/day1.ex
If the boilerplate strategy above holds, I might have to sneak something like that in!
