From 3a947de19792c929af95884d9b1c66135d28b687 Mon Sep 17 00:00:00 2001
From: "Jan \"Yenya\" Kasprzak" <kas@fi.muni.cz>
Date: Tue, 7 Dec 2021 06:25:25 +0100
Subject: [PATCH] Day 7: My brain was too sluggish today.

---
 13.pl | 18 ++++++++++++++++++
 14.pl | 21 +++++++++++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100755 13.pl
 create mode 100755 14.pl

diff --git a/13.pl b/13.pl
new file mode 100755
index 0000000..79740a3
--- /dev/null
+++ b/13.pl
@@ -0,0 +1,18 @@
+#!/usr/bin/perl -w
+
+use v5.16;
+
+my @c = split /[,\s]/, <>;
+
+my $max;
+($max = !$max || $max < $_ ? $_ : $max) for @c;
+
+my $min_f;
+for my $pos (0 .. $max) {
+	my $f = 0;
+	$f += abs($_ - $pos) for @c;
+	$min_f = $f if !$min_f || $min_f > $f;
+	# say "$pos $f $min_f";
+}
+
+say $min_f;
diff --git a/14.pl b/14.pl
new file mode 100755
index 0000000..3822e47
--- /dev/null
+++ b/14.pl
@@ -0,0 +1,21 @@
+#!/usr/bin/perl -w
+
+use v5.16;
+
+my @c = split /[,\s]/, <>;
+
+my $max;
+($max = !$max || $max < $_ ? $_ : $max) for @c;
+
+my $min_f;
+for my $pos (0 .. $max) {
+	my $f = 0;
+	for my $c1 (@c) {
+		my $dist = abs($c1 - $pos);
+		$f += $dist * ($dist+1) /2;
+	}
+	$min_f = $f if !$min_f || $min_f > $f;
+	# say "$pos $f $min_f";
+}
+
+say $min_f;
-- 
2.43.5