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s/score/find_trails/g

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Adam Millerchip 2024-12-10 17:16:54 +09:00
parent 4879d7a7d2
commit 4d74260d8a
1 changed files with 5 additions and 5 deletions
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10
2024/day10.exs
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@ -2,15 +2,15 @@
defmodule Day10 do defmodule Day10 do
def part1({grid, zeros}) do def part1({grid, zeros}) do
zeros zeros
|> Enum.map(fn point -> point |> score(grid, 0) |> Enum.uniq() |> Enum.count() end) |> Enum.map(fn point -> point |> find_trails(grid, 0) |> Enum.uniq() |> Enum.count() end)
|> Enum.sum() |> Enum.sum()
end end
def score(point, _grid, 9), do: [point] def find_trails(point, _grid, 9), do: [point]
def score({x, y}, grid, height) do def find_trails({x, y}, grid, height) do
find_neighbours(x, y, height, grid) find_neighbours(x, y, height, grid)
|> Enum.flat_map(fn {point, _} -> score(point, grid, height + 1) end) |> Enum.flat_map(fn {point, _} -> find_trails(point, grid, height + 1) end)
end end
def find_neighbours(x, y, height, grid) do def find_neighbours(x, y, height, grid) do
@ -23,7 +23,7 @@ defmodule Day10 do
def part2({grid, zeros}) do def part2({grid, zeros}) do
zeros zeros
|> Enum.map(fn point -> point |> score(grid, 0) |> Enum.count() end) |> Enum.map(fn point -> point |> find_trails(grid, 0) |> Enum.count() end)
|> Enum.sum() |> Enum.sum()
end end