From d0ddaacfbd10589fef5bb5c742e8421481921555 Mon Sep 17 00:00:00 2001
From: sloane <1699281+sloanelybutsurely@users.noreply.github.com>
Date: Sat, 2 Dec 2023 09:47:15 -0500
Subject: [PATCH] solve 2023 2.2

---
 2023/elixir/lib/2023/2.ex | 18 +++++++++++++++++-
 README.md                 |  2 +-
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/2023/elixir/lib/2023/2.ex b/2023/elixir/lib/2023/2.ex
index 6819069..fe46489 100644
--- a/2023/elixir/lib/2023/2.ex
+++ b/2023/elixir/lib/2023/2.ex
@@ -94,6 +94,22 @@ aoc 2023, 2 do
     |> Enum.sum()
   end
 
-  def p2(_input) do
+  def p2(input) do
+    input
+    |> read_games()
+    |> Stream.map(&elem(&1, 1))
+    |> Stream.map(&calculate_power/1)
+    |> Enum.sum()
+  end
+
+  defp calculate_power(dice) do
+    {reds, greens, blues} =
+      dice
+      |> Enum.reduce({0, 0, 0}, fn d, {r, g, b} ->
+        {max(Map.get(d, "red", 0), r), max(Map.get(d, "green", 0), g),
+         max(Map.get(d, "blue", 0), b)}
+      end)
+
+    reds * blues * greens
   end
 end
diff --git a/README.md b/README.md
index 45e8da4..7dd8c03 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@
 1. [2020] **17/50** 🌟
 1. [2021] **43/50** 🌟
 1. [2022] **14/50** 🌟
-1. [2023] **3/50** 🌟
+1. [2023] **4/50** 🌟
 
 [2015]: ./2015
 [2017]: ./2017