Formatting

day06/solution.rb

@@ -5,15 +5,15 @@ input = File.readlines('./input').map(&:strip)
 
 lights = Array.new(1000) { Array.new(1000, false) }
 
-instructions = Hash.new
+instructions = {}
 
-instructions = input.map.with_index do |line, i|
+instructions = input.map.with_index do |line, _i|
   line.slice!('turn')
   line = line.split(' ')
   { Command: line[0], Start: line[1].split(',').map!(&:to_i), End: line[3].split(',').map!(&:to_i) }
 end
 
-instructions.each do | instruction |
+instructions.each do |instruction|
   x = instruction[:End][0] - instruction[:Start][0] + 1
   y = instruction[:End][1] - instruction[:Start][1] + 1
   y.times do |y|
@@ -24,7 +24,8 @@ instructions.each do | instruction |
       when 'off'
         lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] = false
       when 'toggle'
-                lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] = !(lights[instruction[:Start][0] + x][ instruction[:Start][1] + y])
+        lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] =
+          !(lights[instruction[:Start][0] + x][ instruction[:Start][1] + y])
       end
     end
   end
@@ -34,7 +35,7 @@ puts "Part 1 Solution: #{lights.flatten.count(true)}"
 # Part 2 (sloppy style)
 lights = Array.new(1000) { Array.new(1000, 0) }
 
-instructions.each do | instruction |
+instructions.each do |instruction|
   x = instruction[:End][0] - instruction[:Start][0] + 1
   y = instruction[:End][1] - instruction[:Start][1] + 1
   y.times do |y|
@@ -44,7 +45,10 @@ instructions.each do | instruction |
         lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] += 1
       when 'off'
         lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] -= 1
-                lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] = 0 if lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] < 0
+        if lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] < 0
+          lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] =
+            0
+        end
       when 'toggle'
         lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] += 2
       end