17 lines
439 B
Ruby
17 lines
439 B
Ruby
def juggler(k) = k.even? ? Integer.sqrt(k) : Integer.sqrt(k*k*k)
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(20..39).chain([113, 173, 193, 2183, 11229, 15065, 15845, 30817, 48443, 275485, 1267909, 2264915]).each do |k|
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k1 = k
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l = h = i = 0
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until k == 1 do
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h, i = k, l if k > h
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l += 1
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k = juggler(k)
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end
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if k1 < 40 then
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puts "#{k1}: l[n] = #{l}, h[n] = #{h}, i[n] = #{i}"
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else
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puts "#{k1}: l[n] = #{l}, d[n] = #{h.to_s.size}, i[n] = #{i}"
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end
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end
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