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clearer variable names

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Adam Millerchip 2024-12-09 08:55:53 +09:00
parent 6c003ed3c2
commit 9345419941
1 changed files with 10 additions and 10 deletions
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2024/day8.exs
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@ -1,14 +1,14 @@
#!/usr/bin/env elixir #!/usr/bin/env elixir
defmodule Day8 do defmodule Day8 do
def part1({x, y, antennas}) do def part1({x, y, frequencies}) do
Enum.reduce(antennas, MapSet.new(), fn coords, antinodes -> Enum.reduce(frequencies, MapSet.new(), fn antennas, antinodes ->
MapSet.union(antinodes, find_antinodes(coords, x, y)) MapSet.union(antinodes, find_antinodes(antennas, x, y))
end) end)
|> MapSet.size() |> MapSet.size()
end end
def find_antinodes(coords, x, y) do def find_antinodes(antennas, x, y) do
coords antennas
|> find_pairs() |> find_pairs()
|> Enum.flat_map(fn pair -> calc_antinodes(pair, x, y) end) |> Enum.flat_map(fn pair -> calc_antinodes(pair, x, y) end)
|> MapSet.new() |> MapSet.new()
@ -28,15 +28,15 @@ defmodule Day8 do
end) end)
end end
def part2({x, y, antennas}) do def part2({x, y, frequencies}) do
Enum.reduce(antennas, MapSet.new(), fn coords, antinodes -> Enum.reduce(frequencies, MapSet.new(), fn antennas, antinodes ->
MapSet.union(antinodes, find_resonant_harmonics(coords, x, y)) MapSet.union(antinodes, find_resonant_harmonics(antennas, x, y))
end) end)
|> MapSet.size() |> MapSet.size()
end end
def find_resonant_harmonics(coords, x, y) do def find_resonant_harmonics(antennas, x, y) do
coords antennas
|> find_pairs |> find_pairs
|> Enum.flat_map(fn pair -> calc_resonant_harmonics(pair, x, y) end) |> Enum.flat_map(fn pair -> calc_resonant_harmonics(pair, x, y) end)
|> MapSet.new() |> MapSet.new()