From fd980bac3eaa239f9477c07099abd96165c58336 Mon Sep 17 00:00:00 2001
From: "Jan \"Yenya\" Kasprzak" <kas@fi.muni.cz>
Date: Fri, 10 Dec 2021 06:26:15 +0100
Subject: [PATCH] Day 10: nice text-based substitutions

---
 19.pl | 22 ++++++++++++++++++++++
 20.pl | 28 ++++++++++++++++++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100755 19.pl
 create mode 100755 20.pl

diff --git a/19.pl b/19.pl
new file mode 100755
index 0000000..419030b
--- /dev/null
+++ b/19.pl
@@ -0,0 +1,22 @@
+#!/usr/bin/perl -w
+
+use v5.16;
+
+my %score_of = (
+	')' => 3,
+	']' => 57,
+	'}' => 1197,
+	'>' => 25137,
+);
+
+my $sum;
+while (<>) {
+	chomp;
+	1 while s/\(\)|\[\]|\{\}|\<\>//;
+	s/^[\(\[\{\<]*//;
+	next if !length;
+	$sum += $score_of{substr($_, 0,1)};
+}
+
+say $sum;
+
diff --git a/20.pl b/20.pl
new file mode 100755
index 0000000..30f517f
--- /dev/null
+++ b/20.pl
@@ -0,0 +1,28 @@
+#!/usr/bin/perl -w
+
+use v5.16;
+
+my %score_of = (
+	'(' => 1,
+	'[' => 2,
+	'{' => 3,
+	'<' => 4,
+);
+
+my @sums;
+while (<>) {
+	chomp;
+	my $sum = 0;
+	1 while s/\(\)|\[\]|\{\}|\<\>//;
+        next if /[\)\]\}\>]/;
+	next if !length;
+	for my $c (reverse split //) {
+		$sum *= 5;
+		$sum += $score_of{$c};
+	}
+	push @sums, $sum;
+}
+
+@sums = sort { $a <=> $b } @sums;
+say $sums[@sums/2];
+
-- 
2.43.5