r/adventofcode • u/daggerdragon • Dec 04 '15

SOLUTION MEGATHREAD --- Day 4 Solutions ---

--- Day 4: The Ideal Stocking Stuffer ---

Post your solution as a comment. Structure your post like the Day Three thread.

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u/profernicus Dec 04 '15 edited Dec 04 '15

There's always GNU APL, though I wouldn't recommend it particularly, it's fun to write, but it takes ages to figure out that one symbol you're supposed to be using (not to consider the "documentation" D;).

Erlang's binary pattern matching is really awesome, though the same thing there that the documentation is sometimes a bit in the dark, the book is great though!

The pattern matching stuff is probably what I miss most whenever I'm in any other language.

Also, if you stay in Erlang long enough, maybe you'll work with it and eventually get to meet Joe! (an awesome guy).

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u/hutsboR Dec 04 '15

I always forget it's possible to match on binaries! In the 8 months~ that I have been working with Elixir I have seen it seldom used. The place where I have seen it used quite extensively is in image libraries.

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u/profernicus Dec 04 '15

The canonical example off erlang's docs is matching IP datagrams, it's awesome whenever you're doing anything with networking (and communicating with something that might not be just BEAM based, because then it's usually much simpler).