From f8d6c517485e4cb02cf651fc54ce3eedb406211d Mon Sep 17 00:00:00 2001
From: s00ner <s00ner@doublehack.me>
Date: Mon, 18 Jul 2022 12:42:21 -0400
Subject: [PATCH] Solved Day 14

---
 day14/input       |  9 ++++++++
 day14/solution.rb | 55 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 64 insertions(+)
 create mode 100644 day14/input
 create mode 100644 day14/solution.rb

diff --git a/day14/input b/day14/input
new file mode 100644
index 0000000..2af1170
--- /dev/null
+++ b/day14/input
@@ -0,0 +1,9 @@
+Vixen can fly 19 km/s for 7 seconds, but then must rest for 124 seconds.
+Rudolph can fly 3 km/s for 15 seconds, but then must rest for 28 seconds.
+Donner can fly 19 km/s for 9 seconds, but then must rest for 164 seconds.
+Blitzen can fly 19 km/s for 9 seconds, but then must rest for 158 seconds.
+Comet can fly 13 km/s for 7 seconds, but then must rest for 82 seconds.
+Cupid can fly 25 km/s for 6 seconds, but then must rest for 145 seconds.
+Dasher can fly 14 km/s for 3 seconds, but then must rest for 38 seconds.
+Dancer can fly 3 km/s for 16 seconds, but then must rest for 37 seconds.
+Prancer can fly 25 km/s for 6 seconds, but then must rest for 143 seconds.
diff --git a/day14/solution.rb b/day14/solution.rb
new file mode 100644
index 0000000..fee82f4
--- /dev/null
+++ b/day14/solution.rb
@@ -0,0 +1,55 @@
+#!/bin/env ruby
+require 'pry'
+
+input = File.readlines('./input')
+
+reindeer = input.to_h do |line|
+  line = line.split
+  [line[0].to_sym,
+   { speed: line[3].to_i, fly_time: line[6].to_i, rest_time: line[13].to_i, flying: line[6].to_i, distance: 0 }]
+end
+
+final_time = 2503
+
+final_time.times do |_tick|
+  reindeer.each do |_deer, stats|
+    stats[:flying] = stats[:fly_time] if stats[:flying] == 0
+    if stats[:flying] > 0
+      stats[:distance] += stats[:speed]
+      stats[:flying] -= 1
+      stats[:flying] = -stats[:rest_time] if stats[:flying] == 0
+    else
+      stats[:flying] += 1
+    end
+  end
+end
+
+winner = reindeer.keys.reduce { |memo, deer| reindeer[deer][:distance] > reindeer[memo][:distance] ? deer : memo }
+
+puts "Part 1: #{winner} wins, flying #{reindeer[winner][:distance]}km."
+
+# Part 2
+reindeer.each_key do |key|
+  reindeer[key][:distance] = 0
+  reindeer[key][:flying] = 0
+  reindeer[key][:points] = 0
+end
+
+final_time.times do |_tick|
+  reindeer.each do |_deer, stats|
+    stats[:flying] = stats[:fly_time] if stats[:flying] == 0
+    if stats[:flying] > 0
+      stats[:distance] += stats[:speed]
+      stats[:flying] -= 1
+      stats[:flying] = -stats[:rest_time] if stats[:flying] == 0
+    else
+      stats[:flying] += 1
+    end
+  end
+  win_dist = reindeer.map { |_, stats| stats[:distance] }.max
+  reindeer.each_key { |deer| reindeer[deer][:points] += 1 if reindeer[deer][:distance] == win_dist }
+end
+
+winner = reindeer.keys.reduce { |memo, deer| reindeer[deer][:points] > reindeer[memo][:points] ? deer : memo }
+puts "Part 2: #{winner} wins, with #{reindeer[winner][:points]} points."
+# binding.pry