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#!/usr/bin/env perl
use strict;
use warnings;
use experimental qw{ say postderef signatures state };
my @examples = (
[ -3, 1, 2, -1, 3, -2, 4 ],
[ -1, -2, -3, 1 ],
[ 1, 2 ],
);
for my $example (@examples) {
my $output = max_pos_neg( $example->@* );
my @ints = $example->@*;
my $ints = join ',', @ints;
say <<"END";
Input: \@ints = ($ints)
Output: $output
END
}
sub max_pos_neg (@ints) {
my $pos = scalar grep { $_ > 0 } @ints;
my $neg = scalar grep { $_ < 0 } @ints;
return $pos > $neg ? $pos : $neg;
}
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