My 2˘ for fun and learning purposes or TMTOWTDI
#!/usr/bin/env perl
use strict;
use warnings;
use Data::Dump;
use feature qw(say);
my @array =
( 29, 24, 0, 24, 24, 12, 0, 0, 10, 10, 10, 19, 17, 15, 13, 1, 12, 12,
+24 );
dd uniq( \@array );
sub uniq {
my $array = shift;
my $last = @$array[0];
my @uniq;
for my $item ( sort { $a <=> $b } @$array ) {
if ( $item != $last ) {
$last = $item;
push @uniq, $item;
}
}
return \@uniq;
}
__END__
[0, 1, 10, 12, 13, 15, 17, 19, 24, 29]
I cheated a bit until i got it ;-)
And to be honest: in real life i would prefer uniq from List::MoreUtils:
sub uniq (@)
{
my %seen = ();
my $k;
my $seen_undef;
grep { defined $_ ? not $seen{ $k = $_ }++ : not $seen_undef++ } @
+_;
}
Regards, Karl
«The Crux of the Biscuit is the Apostrophe»
Furthermore I consider that Donald Trump must be impeached as soon as possible
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