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Re: Diamonds for fun

by BrowserUk (Pope)
on Mar 05, 2011 at 11:10 UTC ( #891562=note: print w/ replies, xml ) Need Help??


in reply to Diamonds for fun

Golf:68. How to get rid of those reverses?

perl -E"$n=pop;say' 'x($n-$_),1..$_,reverse 1..$_-1for 1..$n,reverse 1 +..$n-1" 9

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.


Comment on Re: Diamonds for fun
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Re^2: Diamonds for fun
by a (Friar) on Mar 06, 2011 at 00:15 UTC
    Had to:
    perl -e '$n=pop; print "\n", " "x($n-$_),1..$_,reverse 1..$_-1, for 1. +.$n,reverse 1..$n-1' 9
    for 5.8 ish ... seems like there's a marvelous recursive solution but my brain is too small to find it.

    a

Re^2: Diamonds for fun
by LanX (Canon) on May 04, 2011 at 16:22 UTC
    Golf:56 :)
    perl -E'$_=pop;sub r{1..$_,reverse 1..$_-1}say" "x(9-$_),r for r' 9 1 121 12321 1234321 123454321 12345654321 1234567654321 123456787654321 12345678987654321 123456787654321 1234567654321 12345654321 123454321 1234321 12321 121 1

    Cheers Rolf

      Combining with other posts here, golf:55

      perl -E'$_=pop;sub r{1..$_,reverse 1..$_-1}say$"x(9-$_),r for r' 9

      Enjoy, Have FUN! H.Merijn

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