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By taking a few liberties with the output format here's my entry at 98:
sub c {($a,$c)=@_;@c=@$c;return map{$a>$_? &{sub{$a-=$_*($b=int($a/$_));"$b x $_"}}:""} reverse @c}
The output format this way looks like this:
,,1 x 20,,,2 x 1,2 x 0.25,,,
...which is both cooler (it tells you how many of each denomination) and uglier (empty commas are bad) at the same time. You could always reformat when the sub is called, but I felt I was taking lots of liberties as it was. :-D

I don't normally bother golfing, but this was educational: I found out you can't coerce a trinary operator to do more than one thing at a time in the "then" part without resorting to an anonymous sub. (At least, I think that's right. That's why it's a trinary operator, I guess. :-D) It was fun, and educational...

Gary Blackburn
Trained Killer


In reply to Re: (Golf) Giving Change by Trimbach
in thread (Golf) Giving Change by tadman

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