Re: (Golf) Per Mutations

[arhuman]

You're too good for me !
My best one is 85 (between curly brackets).

sub t{!@_&&print@r,"\n";for my $i(0..$#_){push@r,$_[$i];t(@_[0..$i-1],
+@_[$i+1..$#_]);pop@r}}

"Only Bad Coders Badly Code In Perl" (OBC2IP)

[MeowChow]

Perhaps you'll be able to knock off a few more chars, since the sub isn't supposed to print anything - it only needs to return the data structure specified in the problem description.

A brief reduction of this sub gives 79 chars though:

sub t{!@_&&print@r,"\n";for my$i(1..@_){push@r,$_[$i-1];t(@_[0..$i-2,$
+i..$#_]);pop@r}}

   MeowChow                                   
               s aamecha.s a..a\u$&owag.print

[arhuman]

Well done !
But you should know that I leave a space between my and $i to get rid of a:
'Missing $ on loop variable' error message with my Perl(5.0 patchlevel 5 subversion 3 on linux)

"Only Bad Coders Badly Code In Perl" (OBC2IP)