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29 lines
619 B
29 lines
619 B
start_a, start_b = ARGF.read.strip.scan(/\d+/).map(&:to_i)
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class Generator
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def initialize(start, factor)
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@value = start
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@factor = factor
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end
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def each
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return enum_for(__method__) unless block_given?
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loop do
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@value *= @factor
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@value %= 2147483647
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yield @value
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end
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end
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end
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# start_a, start_b = 65, 8921
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a = Generator.new(start_a, 16807).each.lazy
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b = Generator.new(start_b, 48271).each.lazy
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p a.zip(b).take(40_000_000).with_index.count {|(a,b),i|
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p i if i % 1_000_000 == 0
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# a.to_s(2)[-16,16] == b.to_s(2)[-16,16]
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a & 0b1111111111111111 == b & 0b1111111111111111
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}
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