36 lines
795 B
Crystal
36 lines
795 B
Crystal
require "./intcode.cr"
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require "./intcode_fibers.cr"
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prog = File.read("day7.txt").chomp.split(",").map(&.to_i64)
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def chain_amplifiers(prog, perm, loop = false)
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chans = perm.map { |f| new_interpreter(f, prog) }
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chans.zip perm do |amp, freq|
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amp[0].send freq.to_i64
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end
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chans[0][0].send 0
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i = 0
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history = Array(Int64).new(chans.size, 0)
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loop do
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j = (i+1) % chans.size
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break unless received = chans[i][1].receive
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history[i] = received
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chans[j][0].send received
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i = j
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break if i == 0 && !loop
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end
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history[4]
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end
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max_single = [0,1,2,3,4].permutations.max_of do |perm|
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chain_amplifiers(prog.clone, perm)
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end
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puts max_single
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max_cycled = [5,6,7,8,9].permutations.max_of do |perm|
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chain_amplifiers(prog.clone, perm, loop=true)
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end
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puts max_cycled
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