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Adam Millerchip 2020-12-08 12:47:57 +09:00
parent c6a64056c6
commit d4c0fdb000
2 changed files with 3 additions and 0 deletions
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2
day7/day7part1.exs
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@ -20,6 +20,7 @@ defmodule Day7Part1 do
end end
end end
# %{"shiny gold" => ["pale magenta", "striped tomato", ...]}
def invert_tree(tree) do def invert_tree(tree) do
Enum.reduce(tree, %{}, fn {parent, children}, inverted_tree -> Enum.reduce(tree, %{}, fn {parent, children}, inverted_tree ->
Enum.reduce(children, inverted_tree, fn {_n, child}, inverted_tree -> Enum.reduce(children, inverted_tree, fn {_n, child}, inverted_tree ->
@ -28,6 +29,7 @@ defmodule Day7Part1 do
end) end)
end end
# %{"shiny gold" => [{5, "pale brown"}, {2, "light red"}, {3, "drab lime"}]}
def input_to_tree(input) do def input_to_tree(input) do
input input
|> String.split(".\n", trim: true) |> String.split(".\n", trim: true)

1
day7/day7part2.exs
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@ -14,6 +14,7 @@ defmodule Day7Part2 do
end) end)
end end
# %{"shiny gold" => [{5, "pale brown"}, {2, "light red"}, {3, "drab lime"}]}
def input_to_tree(input) do def input_to_tree(input) do
input input
|> String.split(".\n", trim: true) |> String.split(".\n", trim: true)