37 lines
619 B
Crystal
37 lines
619 B
Crystal
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def parse(input)
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input.lines.map do |s|
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code, int = s.split(" ")
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{code, int.to_i32}
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end
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end
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def run(prog)
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acc = 0
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pc = 0
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visited = Set(Int32).new
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input = Channel(Int32).new
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output = Channel({Symbol, Int32}).new
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spawn do
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loop do
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if pc >= prog.size
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output.send({:term, acc})
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break
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elsif visited.includes? pc
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output.send({:inf, acc})
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break
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end
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visited << pc
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code, int = prog[pc]
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case code
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when "acc"
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acc += int
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when "jmp"
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pc += int - 1
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end
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pc += 1
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end
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end
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{input, output}
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end
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