🚧 WIP

Author: jmartins-sh

Diff for: elixir/day_01/lib/day01.ex

@@ -3,15 +3,6 @@ defmodule Day01 do
   Documentation for `Day01`.
   """
 
-  @doc """
-  Hello world.
-
-  ## Examples
-
-      iex> Day01.hello()
-      :world
-
-  """
   def partOne() do
     input = File.read!("./lib/input.txt")
 
@@ -24,4 +15,47 @@ defmodule Day01 do
     |> Enum.map(&String.to_integer/1)
     |> Enum.sum()
   end
+
+  def partTwo() do
+    # input = File.read!("./lib/input.txt")
+    input = """
+          two1nine
+    eightwothree
+    abcone2threexyz
+    xtwone3four
+    4nineeightseven2
+    zoneight234
+    7pqrstsixteen
+    """
+
+    numbers_as_text = [
+      "one 1",
+      "two 2",
+      "three 3",
+      "four 4",
+      "five 5",
+      "six 6",
+      "seven 7",
+      "eight 8",
+      "nine 9"
+    ]
+
+    sanitized_input =
+      input
+      |> String.split("\n", trim: true)
+      |> Enum.map(fn x ->
+        numbers_as_text
+        |> Enum.reduce(x, fn {k, v}, acc -> String.replace(acc, k, v) end)
+      end)
+      |> Enum.map(fn x -> String.replace(x, ~r/[^\d]/, "") end)
+
+    IO.inspect(sanitized_input)
+
+    sanitized_input
+    |> Enum.map(fn x ->
+      (x |> String.first()) <> (x |> String.last())
+    end)
+    |> Enum.map(&String.to_integer/1)
+    |> Enum.sum()
+  end
 end