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59 lines
1.1 KiB
59 lines
1.1 KiB
12 months ago
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INSTRUCTIONS = ARGF.read.split("\n").map { _1.split(/\s+/) }
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# INSTRUCTIONS.each do |instruction, *args|
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# a, b = *args
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# case instruction
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# when "inp"
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# puts "#{a} = input.shift"
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# when "add"
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# puts "#{a} += #{b}"
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# when "mul"
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# puts "#{a} *= #{b}"
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# when "div"
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# puts "#{a} = (#{a} / #{b}.to_f).floor"
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# when "mod"
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# puts "#{a} %= #{b}"
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# when "eql"
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# puts "#{a} = #{a} == #{b} ? 1 : 0"
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# else
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# fail
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# end
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# end
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# exit
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VARS = %w[ w x y z ]
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def run(input)
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vars = Hash.new(0)
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INSTRUCTIONS.each do |instruction, *args|
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a, b = *args
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b = VARS.include?(b) ? vars[b] : b.to_i
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case instruction
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when "inp"
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vars[a] = input.shift
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when "add"
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vars[a] += b
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when "mul"
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vars[a] *= b
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when "div"
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vars[a] = (vars[a] / b.to_f).floor
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when "mod"
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vars[a] %= b
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when "eql"
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vars[a] = vars[a] == b ? 1 : 0
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else
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fail
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end
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end
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vars
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end
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99999999999999.downto(11111111111111).lazy.map(&:to_s).reject { _1.include?(?0) }.each do |input|
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vars = run(input.chars.map(&:to_i))
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if vars[?z].zero?
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puts input
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exit
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end
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end
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