14 lines
298 B
Text
14 lines
298 B
Text
func perfect_shuffle(deck) {
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deck/2 -> zip.flat
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}
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[8, 24, 52, 100, 1020, 1024, 10000].each { |size|
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var deck = @(1..size)
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var shuffled = deck
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var n = (1..Inf -> lazy.first {
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(shuffled = perfect_shuffle(shuffled)) == deck
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})
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printf("%5d cards: %4d\n", size, n)
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}
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