From bc20ee1a81457cd08d82f4cd35d71b9c5f0f27f6 Mon Sep 17 00:00:00 2001
From: June McEnroe <june@causal.agency>
Date: Tue, 7 Dec 2021 09:59:09 -0500
Subject: Solve day 7 part 1

---
 2021/day07.pl | 7 +++++++
 1 file changed, 7 insertions(+)
 create mode 100644 2021/day07.pl

diff --git a/2021/day07.pl b/2021/day07.pl
new file mode 100644
index 0000000..209bcb2
--- /dev/null
+++ b/2021/day07.pl
@@ -0,0 +1,7 @@
+use strict;
+use warnings;
+my @crabs = sort { $a <=> $b } split(/,/, <>);
+my $median = $crabs[@crabs / 2];
+my $cost = 0;
+$cost += abs($_ - $median) for @crabs;
+print "$cost\n";
-- 
cgit 1.4.1