29 lines
549 B
Ruby
29 lines
549 B
Ruby
def permutations?(number_list)
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comparison_digit_list = to_digit_list(number_list.first).sort
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number_list.all? { |x| to_digit_list(x).sort == comparison_digit_list }
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end
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def six_multiples(x)
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[x, 2 * x, 3 * x, 4 * x, 5 * x, 6 * x]
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end
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def infinite_series
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Enumerator.new do |y|
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n = 1
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loop do
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y << n
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n += 1
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end
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end
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end
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def same_digit_six_multiples
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series = infinite_series
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n = series.next
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loop do
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result = permutations?(six_multiples(n))
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return six_multiples(n) if result
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n = series.next
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end
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end
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