- Added solutions by Pete Houston.

2 files changed, 88 insertions, 0 deletions

diff --git a/challenge-103/pete-houston/perl/ch-1.pl b/challenge-103/pete-houston/perl/ch-1.pl
new file mode 100644
index 0000000000..123373bc9c
--- /dev/null
+++ b/challenge-103/pete-houston/perl/ch-1.pl
@@ -0,0 +1,27 @@
+#!/usr/bin/env perl 
+#===============================================================================
+#
+#         FILE: 10301.pl
+#
+#        USAGE: ./10301.pl YEAR
+#
+#  DESCRIPTION: Output Chinese Zodiac element and animal for given
+#               Gregorian year.
+#
+#        NOTES: All years are assumed to be CE. Zodiac is as at 31st Dec.
+#       AUTHOR: Pete Houston (pete), cpan@openstrike.co.uk
+# ORGANIZATION: Openstrike
+#      VERSION: 1.0
+#      CREATED: 08/03/21
+#===============================================================================
+
+use strict;
+use warnings;
+
+my @elements = qw/Metal Water Wood Fire Earth/;
+my @animals  = qw/Monkey Rooster Dog Pig Rat Ox Tiger Rabbit Dragon Snake Horse Goat/;
+my $year     = $ARGV[0];
+my $element  = $elements[int ($year / 2) % 5];
+my $animal   = $animals[$year % 12];
+
+print "$element $animal\n";
diff --git a/challenge-103/pete-houston/perl/ch-2.pl b/challenge-103/pete-houston/perl/ch-2.pl
new file mode 100644
index 0000000000..adf91d4819
--- /dev/null
+++ b/challenge-103/pete-houston/perl/ch-2.pl
@@ -0,0 +1,61 @@
+#!/usr/bin/env perl 
+#===============================================================================
+#
+#         FILE: 10302.pl
+#
+#        USAGE: ./10302.pl STARTTIME [ NOW ] FILE
+#
+#  DESCRIPTION: What's playing now?
+#
+#      OPTIONS: If the 2nd arg is omitted, uses the current time.
+#       AUTHOR: Pete Houston (pete), cpan@openstrike.co.uk
+# ORGANIZATION: Openstrike
+#      VERSION: 1.0
+#      CREATED: 08/03/21
+#===============================================================================
+
+use strict;
+use warnings;
+
+my ($start, $now, $file) = get_args ();
+
+my @tracks     = load_tracks ($file);
+my $duration   = (1000 * ($now - $start)) % $tracks[-1]->{finish};
+my $trackstart = 0;
+
+for my $track (@tracks) {
+	if ($track->{finish} < $duration) {
+		$trackstart = $track->{finish};
+		next;
+	}
+	output ($track->{title}, $duration - $trackstart);
+	last;
+}
+
+sub load_tracks {
+	my $fname = shift;
+	open my $fh, '<', $fname or die "Cannot open $fname for reading: $!";
+	my ($fin, @t) = 0;
+	while (my $line = <$fh>) {
+		my ($len, $name) = split /,/, $line, 2;
+		$fin += $len;
+		push @t, { finish => $fin, title => $name };
+	}
+	return @t;
+}
+
+sub get_args {
+	if (3 == @ARGV) {
+		return @ARGV;
+	} elsif (2 == @ARGV) {
+		return ($ARGV[0], time, $ARGV[1]);
+	} else {
+		die "Usage: $0 STARTTIME [ NOW ] FILE\n\n";
+	}
+}
+
+sub output {
+	my ($t, $s) = @_;
+	$s /= 1000;
+	printf "%s%2.2i:%2.2i:%2.2i\n", $t, $s / 3600, ($s / 60 % 60), $s % 60;
+}