You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
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stones = DATA.read.scan(/\d+/).map(&:to_i)
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|
|
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25.times {
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stones = stones.flat_map {|n|
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if n.zero?
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[1]
|
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elsif (s = n.to_s.size) && s.even?
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[n.to_s[0...s/2], n.to_s[s/2..]].map(&:to_i)
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else
|
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[n * 2024]
|
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end
|
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}
|
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}
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|
|
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pp stones.length
|
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|
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__END__
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1750884 193 866395 7 1158 31 35216 0
|
