Solve 2024/03

code-shoily · code-shoily · commit 0e8e106c2d72 · 2024-12-03T01:36:22.000-05:00
diff --git a/lib/2015/README.md b/lib/2015/README.md
@@ -3,7 +3,7 @@
 
 [Main Page](https://adventofcode.com/2015) | [Tests](/test/2015)
 
-2015 | [2016](/lib/2016) | [2017](/lib/2017) | [2018](/lib/2018) | [2019](/lib/2019) | [2020](/lib/2020) | [2021](/lib/2021) | [2022](/lib/2022) | [2023](/lib/2023)
+2015 | [2016](/lib/2016) | [2017](/lib/2017) | [2018](/lib/2018) | [2019](/lib/2019) | [2020](/lib/2020) | [2021](/lib/2021) | [2022](/lib/2022) | [2023](/lib/2023) | [2024](/lib/2024)
 
 
 ## :trophy: 48/50
diff --git a/lib/2016/README.md b/lib/2016/README.md
@@ -3,7 +3,7 @@
 
 [Main Page](https://adventofcode.com/2016) | [Tests](/test/2016)
 
-[2015](/lib/2015) | 2016 | [2017](/lib/2017) | [2018](/lib/2018) | [2019](/lib/2019) | [2020](/lib/2020) | [2021](/lib/2021) | [2022](/lib/2022) | [2023](/lib/2023)
+[2015](/lib/2015) | 2016 | [2017](/lib/2017) | [2018](/lib/2018) | [2019](/lib/2019) | [2020](/lib/2020) | [2021](/lib/2021) | [2022](/lib/2022) | [2023](/lib/2023) | [2024](/lib/2024)
 
 
 ## :trophy: 22/50
diff --git a/lib/2017/README.md b/lib/2017/README.md
@@ -3,7 +3,7 @@
 
 [Main Page](https://adventofcode.com/2017) | [Tests](/test/2017)
 
-[2015](/lib/2015) | [2016](/lib/2016) | 2017 | [2018](/lib/2018) | [2019](/lib/2019) | [2020](/lib/2020) | [2021](/lib/2021) | [2022](/lib/2022) | [2023](/lib/2023)
+[2015](/lib/2015) | [2016](/lib/2016) | 2017 | [2018](/lib/2018) | [2019](/lib/2019) | [2020](/lib/2020) | [2021](/lib/2021) | [2022](/lib/2022) | [2023](/lib/2023) | [2024](/lib/2024)
 
 
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diff --git a/lib/2018/README.md b/lib/2018/README.md
@@ -3,7 +3,7 @@
 
 [Main Page](https://adventofcode.com/2018) | [Tests](/test/2018)
 
-[2015](/lib/2015) | [2016](/lib/2016) | [2017](/lib/2017) | 2018 | [2019](/lib/2019) | [2020](/lib/2020) | [2021](/lib/2021) | [2022](/lib/2022) | [2023](/lib/2023)
+[2015](/lib/2015) | [2016](/lib/2016) | [2017](/lib/2017) | 2018 | [2019](/lib/2019) | [2020](/lib/2020) | [2021](/lib/2021) | [2022](/lib/2022) | [2023](/lib/2023) | [2024](/lib/2024)
 
 
 ## :trophy: 15/50
diff --git a/lib/2019/README.md b/lib/2019/README.md
@@ -3,7 +3,7 @@
 
 [Main Page](https://adventofcode.com/2019) | [Tests](/test/2019)
 
-[2015](/lib/2015) | [2016](/lib/2016) | [2017](/lib/2017) | [2018](/lib/2018) | 2019 | [2020](/lib/2020) | [2021](/lib/2021) | [2022](/lib/2022) | [2023](/lib/2023)
+[2015](/lib/2015) | [2016](/lib/2016) | [2017](/lib/2017) | [2018](/lib/2018) | 2019 | [2020](/lib/2020) | [2021](/lib/2021) | [2022](/lib/2022) | [2023](/lib/2023) | [2024](/lib/2024)
 
 
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diff --git a/lib/2020/README.md b/lib/2020/README.md
@@ -3,7 +3,7 @@
 
 [Main Page](https://adventofcode.com/2020) | [Tests](/test/2020)
 
-[2015](/lib/2015) | [2016](/lib/2016) | [2017](/lib/2017) | [2018](/lib/2018) | [2019](/lib/2019) | 2020 | [2021](/lib/2021) | [2022](/lib/2022) | [2023](/lib/2023)
+[2015](/lib/2015) | [2016](/lib/2016) | [2017](/lib/2017) | [2018](/lib/2018) | [2019](/lib/2019) | 2020 | [2021](/lib/2021) | [2022](/lib/2022) | [2023](/lib/2023) | [2024](/lib/2024)
 
 
 ## :trophy: 44/50
diff --git a/lib/2021/README.md b/lib/2021/README.md
@@ -3,7 +3,7 @@
 
 [Main Page](https://adventofcode.com/2021) | [Tests](/test/2021)
 
-[2015](/lib/2015) | [2016](/lib/2016) | [2017](/lib/2017) | [2018](/lib/2018) | [2019](/lib/2019) | [2020](/lib/2020) | 2021 | [2022](/lib/2022) | [2023](/lib/2023)
+[2015](/lib/2015) | [2016](/lib/2016) | [2017](/lib/2017) | [2018](/lib/2018) | [2019](/lib/2019) | [2020](/lib/2020) | 2021 | [2022](/lib/2022) | [2023](/lib/2023) | [2024](/lib/2024)
 
 
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diff --git a/lib/2022/README.md b/lib/2022/README.md
@@ -3,7 +3,7 @@
 
 [Main Page](https://adventofcode.com/2022) | [Tests](/test/2022)
 
-[2015](/lib/2015) | [2016](/lib/2016) | [2017](/lib/2017) | [2018](/lib/2018) | [2019](/lib/2019) | [2020](/lib/2020) | [2021](/lib/2021) | 2022 | [2023](/lib/2023)
+[2015](/lib/2015) | [2016](/lib/2016) | [2017](/lib/2017) | [2018](/lib/2018) | [2019](/lib/2019) | [2020](/lib/2020) | [2021](/lib/2021) | 2022 | [2023](/lib/2023) | [2024](/lib/2024)
 
 
 ## :trophy: 45/50
diff --git a/lib/2023/README.md b/lib/2023/README.md
@@ -3,7 +3,7 @@
 
 [Main Page](https://adventofcode.com/2023) | [Tests](/test/2023)
 
-[2015](/lib/2015) | [2016](/lib/2016) | [2017](/lib/2017) | [2018](/lib/2018) | [2019](/lib/2019) | [2020](/lib/2020) | [2021](/lib/2021) | [2022](/lib/2022) | 2023
+[2015](/lib/2015) | [2016](/lib/2016) | [2017](/lib/2017) | [2018](/lib/2018) | [2019](/lib/2019) | [2020](/lib/2020) | [2021](/lib/2021) | [2022](/lib/2022) | 2023 | [2024](/lib/2024)
 
 
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diff --git a/lib/2024/README.md b/lib/2024/README.md
@@ -0,0 +1,14 @@
+<!-- AUTOGENERATED -- DO NOT EDIT -- use `mix gen_stats` -->
+# Advent of Code 2024
+
+[Main Page](https://adventofcode.com/2024) | [Tests](/test/2024)
+
+[2015](/lib/2015) | [2016](/lib/2016) | [2017](/lib/2017) | [2018](/lib/2018) | [2019](/lib/2019) | [2020](/lib/2020) | [2021](/lib/2021) | [2022](/lib/2022) | [2023](/lib/2023) | 2024
+
+
+## :trophy: 2/50
+
+| Day | Problem Page | Status | Difficulty | Solution Page | Test Page | Tags |
+| :---: | :------: | :---: | :---: | :---: | :---: | :---: |
+| 3 | [Mull It Over](https://adventofcode.com/2024/day/3) | :1st_place_medal: | :shrug: | [day_03.ex](/lib/2024/day_03.ex) | [day_03_test.exs](/test/2024/day_03_test.exs) |  |
+
diff --git a/lib/2024/day_03.ex b/lib/2024/day_03.ex
@@ -0,0 +1,63 @@
+defmodule AdventOfCode.Y2024.Day03 do
+  @moduledoc """
+  --- Day 3: Mull It Over ---
+  Problem Link: https://adventofcode.com/2024/day/3
+  Difficulty:
+  Tags:
+  """
+  alias AdventOfCode.Helpers.{InputReader, Transformers}
+
+  def input, do: InputReader.read_from_file(2024, 3)
+
+  def run(input \\ input()) do
+    input = parse(input)
+
+    {run_1(input), run_2(input)}
+  end
+
+  defp run_1(input) do
+    input
+    |> Enum.flat_map(fn line -> line |> tokenize() |> Enum.map(&mul/1) end)
+    |> Enum.sum()
+  end
+
+  defp run_2(input) do
+    input
+    |> Enum.flat_map(&tokenize_with_state/1)
+    |> Enum.reduce({true, 0}, fn instruction, {continue?, total} ->
+      case {continue?, instruction} do
+        {_, "do()"} -> {true, total}
+        {_, "don't()"} -> {false, total}
+        {true, instruction} -> {true, mul(instruction) + total}
+        {false, _} -> {false, total}
+      end
+    end)
+    |> elem(1)
+  end
+
+  def parse(data \\ input()) do
+    data
+    |> Transformers.lines()
+  end
+
+  def tokenize_with_state(line) do
+    ~r/(?>mul\(\d+,\d+\))|(?>do\(\))|(?>don't\(\))/
+    |> Regex.scan(line)
+    |> List.flatten()
+  end
+
+  def tokenize(line) do
+    ~r/mul\(\d+,\d+\)/
+    |> Regex.scan(line)
+    |> List.flatten()
+  end
+
+  def mul(token) do
+    token
+    |> String.replace("mul(", "")
+    |> String.replace(")", "")
+    |> String.split(",")
+    |> Enum.map(&String.to_integer/1)
+    |> Enum.reduce(&(&1 * &2))
+  end
+end
diff --git a/lib/advent_of_code.ex b/lib/advent_of_code.ex
@@ -2,9 +2,9 @@ defmodule AdventOfCode do
   @moduledoc """
   Module that solves problem given year and day.
   """
-  @latest_year 2023
+  @latest_year 2024
 
-  @type year() :: 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023
+  @type year() :: 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024
   @type day() :: pos_integer()
 
   @doc """
diff --git a/priv/input_files/2024_3.txt b/priv/input_files/2024_3.txt
diff --git a/priv/native/libaoc.so b/priv/native/libaoc.so
diff --git a/test/2024/day_03_test.exs b/test/2024/day_03_test.exs
@@ -0,0 +1,12 @@
+defmodule AdventOfCode.Y2024.Day03Test do
+  @moduledoc false
+
+  use ExUnit.Case, async: true
+  @moduletag :y2403
+
+  alias AdventOfCode.Y2024.Day03, as: Solution
+
+  test "Year 2024, Day 3 run/1" do
+    assert Solution.run() == {190_604_937, 82_857_512}
+  end
+end
