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Re: [golf] Kaprekar Numbers

by Roy Johnson (Monsignor)
on Jul 05, 2005 at 19:47 UTC ( #472580=note: print w/ replies, xml ) Need Help??


in reply to [golf] Kaprekar Numbers

41:

$_=$_[0]**2;$==y///c/2;/.{$=}/;$&+$'==pop

Caution: Contents may have been coded under pressure.


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Re^2: [golf] Kaprekar Numbers
by truedfx (Monk) on Jul 07, 2005 at 20:36 UTC
    Based on your idea, I got it to 38:
    # 34567890123456789012345678901234567890 $_=$_[0]**2;pos=y///c/2;//g;$`+$'==pop
    (Edit: and using thospel's "@_" instead of $_[0] makes it 37. I wonder how I managed to miss that...)
      Like this it's 34:
      (pos=$_="@_"**2)/=2;//g;$`+$'==pop

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