From: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Date: Tue, 7 Dec 2021 05:25:25 +0000 (+0100)
Subject: Day 7: My brain was too sluggish today.
X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=commitdiff_plain;h=3a947de19792c929af95884d9b1c66135d28b687;p=aoc2021.git

Day 7: My brain was too sluggish today.
---

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;