52 lines
1.2 KiB
Ruby
Executable File
52 lines
1.2 KiB
Ruby
Executable File
#!/bin/env ruby
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require 'pry'
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input = File.readlines('./input').map(&:chomp)
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starting_molecule = input.pop.scan(/[A-Z][a-z]?/)
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starting_molecule.freeze
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input.pop
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input.map! { |pair| pair.split('=>').map(&:strip) }
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results = []
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starting_molecule.each.with_index do |element, i|
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input.each do |pair|
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next unless pair[0] == element
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molecule = starting_molecule.dup
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molecule[i] = pair[1]
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results.push(molecule.reduce(&:+))
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end
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end
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puts "Part 1 Solution: #{results.uniq.count}"
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# binding.pry
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result = starting_molecule.reduce(&:+)
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count = 0
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counts = []
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100.times do
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until result == 'e'
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previous = result.dup
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matches = input.map do |pair|
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# pair[1].scan(/[A-Z]/).size * result.scan(pair[1]).size
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result.scan(pair[1]).size
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end
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match = matches.find_index(matches.reject(&:zero?).sample)
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result.gsub!(input[match][1], input[match][0]) unless match.nil?
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count += matches[match] unless match.nil?
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next unless previous == result
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input.shuffle!
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count == 0
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result = starting_molecule.reduce(&:+)
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# break if gets.chomp == 'q'
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end
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result = starting_molecule.reduce(&:+)
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input.shuffle!
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counts.push(count)
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count = 0
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end
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puts "Part 2 Solution: #{counts.min}"
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