Oh my ... shuffle this, splice that ... how's this?
use strict;
BEGIN{eval q{use warnings;}}
{
my %cache;
sub Gimme {
my( $arr, $n, $clear, $all ) = @_;
my @ret = ();
$cache{$arr} = {} if defined $clear or not exists $cache{$arr}
+;
%cache = () if defined $all;
while($n){
my $rand = $$arr[rand@$arr];
unless(exists $cache{$arr}{$rand}){
$n--;
$cache{$arr}{$rand}++;
push @ret, $rand;
}
if( scalar %{$cache{$arr}} == @$arr ) {
warn "No more unique elements left in $arr";
return @ret;
}
}
return @ret;
}
}
my @array = ( 1..10,'a'..'z',keys %:: );
#my($c1, $c2, $c3, $c4, $c5 ) = Gimme(\@array,5);
for(1..10){
print "\n\n=head1 $_\n\n";
print "\t$_\n" for Gimme(\@array, 5);
}
__END__
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