From bbc0b34240f285bd122dc8cccea5f61cf0d1e375 Mon Sep 17 00:00:00 2001
From: Slavunderkind <smcankova@gmail.com>
Date: Wed, 11 Jan 2017 16:19:24 +0200
Subject: [PATCH 1/2] Fix type error - defibrillator instead of defibrilator

---
 Training/Easy/defibrillators.rb | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/Training/Easy/defibrillators.rb b/Training/Easy/defibrillators.rb
index 753775e..5619d47 100644
--- a/Training/Easy/defibrillators.rb
+++ b/Training/Easy/defibrillators.rb
@@ -1,12 +1,12 @@
 # Solution for https://www.codingame.com/ide/puzzle/defibrillators
 class Defibrillators
-  attr_accessor :lon, :lat, :n, :defibrilators
+  attr_accessor :lon, :lat, :n, :defibrillators
 
   def initialize
     @lon = parse(gets.chomp)
     @lat = parse(gets.chomp)
     @n = gets.to_i
-    @defibrilators = {}
+    @defibrillators = {}
   end
 
   def calculate_x(d_long, d_lat)
@@ -26,11 +26,11 @@ def parse(var)
     (var.sub(',', '.').to_f * Math::PI) / 180
   end
 
-  def find_closest(defibrilators_hash)
-    min = defibrilators_hash.values.first
-    closest_name = defibrilators_hash.keys.first
+  def find_closest(defibrillators_hash)
+    min = defibrillators_hash.values.first
+    closest_name = defibrillators_hash.keys.first
 
-    defibrilators_hash.map do |key, value|
+    defibrillators_hash.map do |key, value|
       if value < min
         min = value
         closest_name = key
@@ -39,18 +39,18 @@ def find_closest(defibrilators_hash)
     closest_name
   end
 
-  def init_defibrilators(defibrilator)
-    d_long = parse(defibrilator[4])
-    d_lat = parse(defibrilator[5])
+  def init_defibrillators(defibrillator)
+    d_long = parse(defibrillator[4])
+    d_lat = parse(defibrillator[5])
     x = calculate_x(d_long, d_lat)
     y = calculate_y(d_lat)
-    defibrilators[defibrilator[1]] = distance(x, y)
+    defibrillators[defibrillator[1]] = distance(x, y)
   end
 
   def start
     n.times do
       defib = gets.chomp
-      init_defibrilators(defib.split(';'))
+      init_defibrillators(defib.split(';'))
     end
     puts find_closest(defibrillators)
   end

From 23f345091286cddf9976ec2c14dca6eba8d5caa6 Mon Sep 17 00:00:00 2001
From: Slavunderkind <smcankova@gmail.com>
Date: Fri, 20 Jan 2017 17:13:41 +0200
Subject: [PATCH 2/2] Simplify the code and remove unnecessary function
 find_closest

---
 Training/Easy/defibrillators.rb | 40 ++++++++++++---------------------
 1 file changed, 14 insertions(+), 26 deletions(-)

diff --git a/Training/Easy/defibrillators.rb b/Training/Easy/defibrillators.rb
index 5619d47..7b38852 100644
--- a/Training/Easy/defibrillators.rb
+++ b/Training/Easy/defibrillators.rb
@@ -1,11 +1,11 @@
 # Solution for https://www.codingame.com/ide/puzzle/defibrillators
 class Defibrillators
-  attr_accessor :lon, :lat, :n, :defibrillators
+  attr_accessor :lon, :lat, :defibrilators_count, :defibrillators
 
   def initialize
-    @lon = parse(gets.chomp)
-    @lat = parse(gets.chomp)
-    @n = gets.to_i
+    @lon = degrees_to_radians(gets.chomp)
+    @lat = degrees_to_radians(gets.chomp)
+    @defibrilators_count = gets.to_i
     @defibrillators = {}
   end
 
@@ -22,39 +22,27 @@ def distance(x, y)
     Math.sqrt(x * x + y * y) * 6371
   end
 
-  def parse(var)
-    (var.sub(',', '.').to_f * Math::PI) / 180
+  def degrees_to_radians(degrees)
+    (degrees.sub(',', '.').to_f * Math::PI) / 180
   end
 
-  def find_closest(defibrillators_hash)
-    min = defibrillators_hash.values.first
-    closest_name = defibrillators_hash.keys.first
-
-    defibrillators_hash.map do |key, value|
-      if value < min
-        min = value
-        closest_name = key
-      end
-    end
-    closest_name
-  end
-
-  def init_defibrillators(defibrillator)
-    d_long = parse(defibrillator[4])
-    d_lat = parse(defibrillator[5])
+  def add_defibrillator(defibrillator)
+    d_long = degrees_to_radians(defibrillator[4])
+    d_lat = degrees_to_radians(defibrillator[5])
     x = calculate_x(d_long, d_lat)
     y = calculate_y(d_lat)
     defibrillators[defibrillator[1]] = distance(x, y)
   end
 
   def start
-    n.times do
+    Array.new(defibrilators_count) do
       defib = gets.chomp
-      init_defibrillators(defib.split(';'))
+      add_defibrillator(defib.split(';'))
     end
-    puts find_closest(defibrillators)
+    defibrillators.min_by { |_, v| v }.first
   end
 end
 
 obj = Defibrillators.new
-obj.start
+answer = obj.start
+puts answer