Re: Friday Golf: All 2-digit combinations

My half-assed try... 67

for('00'..'99'){$a.=$_ unless $x{$_} or $x{reverse $_}++};print $a;
#234567890#234567890#234567890#234567890#234567890#234567890#234567
#        1         2         3         4         5         6
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Note, it includes '00' which some people are missing...

Update... 59? (similar to hardburn's solution)

for('00'..'99'){$x{$_}++unless $x{reverse()}};print keys%x;
[download]

Update 2 ...50?

for$a(0..9){for(0..9){$x.="$a$_"if$_>=$a}}print$x;
[download]

Update 3: after a clarification, i guess i've misunderstood the problem. I thought it needed all unique pairs, separately (ie. 00, 01, 02, 03...). My bad.

Update 4: Here's one that actually passes the checker (60)

$_=9;for$a(0..9){for$b($a..9){$_.="$a$b"}s/$a{3}/$a$a/}print
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Update... 57!

$_=9;for$a(0..9){for$b($a..9){$_.="$a$b"}s/$a$a/$a/}print
[download]

--
"To err is human, but to really foul things up you need a computer." --Paul Ehrlich

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Re: Re: Friday Golf: All 2-digit combinations
by hardburn (Abbot) on Sep 26, 2003 at 14:30 UTC

Take out two ';' and the whitespace after the unless and you're down three more strokes:

for('00'..'99'){$x{$_}++unless$x{reverse()}}print keys%x
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Re: Re: Friday Golf: All 2-digit combinations
by BrowserUk (Patriarch) on Sep 26, 2003 at 18:58 UTC

56! {He he}

$_=9;for$a(0..9){for$b($a..9){$_.=$a.$b}s/$a$a/$a/}print
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Examine what is said, not who speaks.

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"When I'm working on a problem, I never think about beauty. I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong." -Richard Buckminster Fuller
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Re: Re: Re: Friday Golf: All 2-digit combinations

by LTjake (Prior) on Sep 26, 2003 at 19:49 UTC

53.

for$a(9,0..9){for$b($a..9){$_.=$a.$b}s/$a$a/$a/}print

--
"To err is human, but to really foul things up you need a computer." --Paul Ehrlich

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Re: Re: Re: Re: Friday Golf: All 2-digit combinations

by BrowserUk (Patriarch) on Sep 26, 2003 at 19:55 UTC

Scratch! Too eager:)

Examine what is said, not who speaks.

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