20 lines
463 B
Elixir
20 lines
463 B
Elixir
|
defmodule Day4Part1 do
|
||
|
|
@required MapSet.new(["byr", "ecl", "eyr", "hcl", "hgt", "iyr", "pid"])
|
||
|
|
|
||
|
|
def run do
|
||
|
|
File.read!("input")
|
||
|
|
|> String.trim()
|
||
|
|
|> String.split("\n\n")
|
||
|
|
|> Enum.map(fn passport ->
|
||
|
|
passport
|
||
|
|
|> String.split([" ", "\n"])
|
||
|
|
|> Enum.map(&String.split(&1, ":"))
|
||
|
|
|> Enum.into(MapSet.new(), fn [k, _] -> k end)
|
||
|
|
end)
|
||
|
|
|> Enum.count(&MapSet.subset?(@required, &1))
|
||
|
|
|> IO.puts()
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
Day4Part1.run()
|