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AoC2015
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Formatting

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s00ner 2022-07-15 08:13:57 -04:00
parent daa7f3eeb5
commit 4386d976f1
1 changed files with 37 additions and 33 deletions
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70
day06/solution.rb
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@ -5,51 +5,55 @@ input = File.readlines('./input').map(&:strip)
lights = Array.new(1000) { Array.new(1000, false) } 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.slice!('turn')
line = line.split(' ') line = line.split(' ')
{ Command: line[0], Start: line[1].split(',').map!(&:to_i), End: line[3].split(',').map!(&:to_i) } { Command: line[0], Start: line[1].split(',').map!(&:to_i), End: line[3].split(',').map!(&:to_i) }
end end
instructions.each do | instruction | instructions.each do |instruction|
x = instruction[:End][0] - instruction[:Start][0] + 1 x = instruction[:End][0] - instruction[:Start][0] + 1
y = instruction[:End][1] - instruction[:Start][1] + 1 y = instruction[:End][1] - instruction[:Start][1] + 1
y.times do |y| y.times do |y|
x.times do |x| x.times do |x|
case instruction[:Command] case instruction[:Command]
when 'on' when 'on'
lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] = true lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] = true
when 'off' when 'off'
lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] = false lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] = false
when 'toggle' 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] =
end !(lights[instruction[:Start][0] + x][ instruction[:Start][1] + y])
end end
end end
end
end end
puts "Part 1 Solution: #{lights.flatten.count(true)}" puts "Part 1 Solution: #{lights.flatten.count(true)}"
# Part 2 (sloppy style) # Part 2 (sloppy style)
lights = Array.new(1000) { Array.new(1000, 0) } lights = Array.new(1000) { Array.new(1000, 0) }
instructions.each do | instruction | instructions.each do |instruction|
x = instruction[:End][0] - instruction[:Start][0] + 1 x = instruction[:End][0] - instruction[:Start][0] + 1
y = instruction[:End][1] - instruction[:Start][1] + 1 y = instruction[:End][1] - instruction[:Start][1] + 1
y.times do |y| y.times do |y|
x.times do |x| x.times do |x|
case instruction[:Command] case instruction[:Command]
when 'on' when 'on'
lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] += 1 lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] += 1
when 'off' when 'off'
lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] -= 1 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
when 'toggle' lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] =
lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] += 2 0
end
end end
when 'toggle'
lights[instruction[:Start][0] + x][ instruction[:Start][1] + y] += 2
end
end end
end
end end
puts "Part 2 Solution: #{lights.flatten.sum}" puts "Part 2 Solution: #{lights.flatten.sum}"