for('00'..'99'){$h{$_}++if(!($h{$_}||$h{reverse$_}))}print keys%h

[download]

78 76 64

Update: Slight bumming of the if statement to use statement-modifier form instead of a block. Saves 2 characters.

Update 2: Realized that the exists were unnecessary. Saves 12 characters.

Update 3: Old versions, added back after tye's response:

for('00'..'99'){if(!(exists$h{$_}||exists$h{reverse$_})){$h{$_}++}prin
+t keys%h

[download]
 
for('00'..'99'){$h{$_}++if(!(exists$h{$_}||exists$h{reverse$_}))print 
+keys%h

[download]

----
I wanted to explore how Perl's closures can be manipulated, and ended up creating an object system by accident.
-- Schemer

Note: All code is untested, unless otherwise stated

In reply to Re: Friday Golf: All 2-digit combinations by hardburn
in thread Friday Golf: All 2-digit combinations by PhilHibbs

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