From 7bde581e50a2cce953a2bc0d53e4c95f0a7e70ac Mon Sep 17 00:00:00 2001 From: Adam Millerchip Date: Thu, 8 Dec 2022 02:21:36 +0900 Subject: [PATCH] prefer map access syntax --- 2022/day7.exs | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/2022/day7.exs b/2022/day7.exs index 921dd47..57dbaef 100644 --- a/2022/day7.exs +++ b/2022/day7.exs @@ -24,7 +24,7 @@ defmodule Day7 do end defp put_dir_size(path, tree) do - {:dir, nil, paths} = Map.get(tree, path) + {:dir, nil, paths} = tree[path] size = tree |> Map.take(paths) |> Enum.map(fn {_, {_, size, _}} -> size end) |> Enum.sum() Map.put(tree, path, {:dir, size, paths}) end @@ -33,7 +33,7 @@ defmodule Day7 do defp dirs_fewest_descendents_first(_tree, [], found_dirs), do: found_dirs defp dirs_fewest_descendents_first(tree, [node | rest], dirs) do - case Map.get(tree, node) do + case tree[node] do {:file, _size, nil} -> dirs_fewest_descendents_first(tree, rest, dirs) {:dir, _size, paths} -> dirs_fewest_descendents_first(tree, paths ++ rest, [node | dirs]) end @@ -72,7 +72,7 @@ defmodule Day7 do def part2(input) do tree = filetree_with_dir_sizes(input) - {:dir, space_used, _} = Map.get(tree, @root) + {:dir, space_used, _} = tree[@root] unused_space = @total_size - space_used space_to_free = @space_needed - unused_space