Formatted

lib/year_2025/day1.exs

@@ -1,8 +1,9 @@
-filepath = Path.join([File.cwd!, "lib", "year_2025", "day1_input.txt"])
-ops = File.stream!(filepath)
+filepath = Path.join([File.cwd!(), "lib", "year_2025", "day1_input.txt"])
+
+ops =
+  File.stream!(filepath)
   |> Stream.map(&String.trim_trailing/1)
-|>Enum.to_list
+  |> Enum.to_list()
 
 {_, zeroes} = AdventOfCode.Year2025.Dial.rotate(ops)
 IO.puts(zeroes)
-

lib/year_2025/dial.ex

@@ -7,7 +7,8 @@ defmodule AdventOfCode.Year2025.Dial do
 
   # Compute the new dial position
   def rotate(index, [head | tail], zeroes) do
-    { new_index, _crosses } = case head do
+    {new_index, _crosses} =
+      case head do
         "R" <> number -> rotate_right(index, String.to_integer(number))
         "L" <> number -> rotate_left(index, String.to_integer(number))
       end
@@ -21,6 +22,7 @@ defmodule AdventOfCode.Year2025.Dial do
   defp rotate_right(index, number) do
     crosses = div(number, 100)
     diff = index + rem(number, 100)
+
     case diff do
       diff when diff <= 99 -> {diff, crosses}
       diff when diff > 99 -> {diff - 100, crosses + 1}
@@ -30,6 +32,7 @@ defmodule AdventOfCode.Year2025.Dial do
   defp rotate_left(index, number) do
     crosses = div(number, 100)
     diff = index - rem(number, 100)
+
     case diff do
       diff when diff >= 0 -> {diff, crosses}
       diff when diff < 0 -> {diff + 100, crosses + 1}