From 2dcd833e6a80764bbadc610aa2b55366c1cb1baf Mon Sep 17 00:00:00 2001
From: "Jan \"Yenya\" Kasprzak" <kas@fi.muni.cz>
Date: Thu, 7 Dec 2023 07:56:43 +0100
Subject: [PATCH] Day 7: not bad

---
 2023/13.pl | 42 ++++++++++++++++++++++++++++++++++++++++
 2023/14.pl | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 98 insertions(+)
 create mode 100755 2023/13.pl
 create mode 100755 2023/14.pl

diff --git a/2023/13.pl b/2023/13.pl
new file mode 100755
index 0000000..b5bd859
--- /dev/null
+++ b/2023/13.pl
@@ -0,0 +1,42 @@
+#!/usr/bin/perl -w
+
+use v5.38;
+
+my %cards;
+while (<>) {
+	chomp;
+	my ($card, $bid) = split /\s+/;
+	$cards{$card} = $bid;
+	say " $card => $bid $_ " . val($card);
+}
+
+sub rank {
+	my $card = shift;
+	my @cards = split //, $card;
+	my %hist;
+	$hist{$_}++ for @cards;
+	return 1 if grep { $hist{$_} == 5 } @cards;
+	return 2 if grep { $hist{$_} == 4 } @cards;
+	return 3 if grep { $hist{$_} == 3 } @cards
+		and grep { $hist{$_} == 2 } @cards;
+	return 4 if grep { $hist{$_} == 3 } @cards;
+	return 5 if (grep { $hist{$_} == 2 } @cards) == 4;
+	return 6 if grep { $hist{$_} == 2 } @cards;
+	return 7;
+}
+
+sub val {
+	my $val = shift;
+	$val =~ y/AKQJT98765432/ABCDEFGHIJKLM/;
+	return rank($val).$val;
+}
+
+my $i = 1;
+my $sum;
+for my $card (sort { val($b) cmp val($a) } keys %cards) {
+	say "$card $i ", val($card);
+	$sum += $cards{$card} * $i++;
+}
+
+say $sum;
+
diff --git a/2023/14.pl b/2023/14.pl
new file mode 100755
index 0000000..ac13982
--- /dev/null
+++ b/2023/14.pl
@@ -0,0 +1,56 @@
+#!/usr/bin/perl -w
+
+use v5.38;
+
+my %cards;
+while (<>) {
+	chomp;
+	my ($card, $bid) = split /\s+/;
+	$cards{$card} = $bid;
+	say " $card => $bid $_ " . val($card);
+}
+
+sub rank {
+	my $card = shift;
+	my @cards = split //, $card;
+	my %hist;
+	$hist{$_}++ for @cards;
+	return 1 if grep { $hist{$_} == 5 } @cards;
+	return 2 if grep { $hist{$_} == 4 } @cards;
+	return 3 if grep { $hist{$_} == 3 } @cards
+		and grep { $hist{$_} == 2 } @cards;
+	return 4 if grep { $hist{$_} == 3 } @cards;
+	return 5 if (grep { $hist{$_} == 2 } @cards) == 4;
+	return 6 if grep { $hist{$_} == 2 } @cards;
+	return 7;
+}
+
+sub rank2 {
+	my $card = shift;
+	my @cards = split //, $card;
+	my $max_rank = rank($card);
+	for my $c (@cards) {
+		my $c1 = $card;
+		$c1 =~ s/J/$c/g;
+		my $r = rank($c1);
+		$max_rank = $r if $r < $max_rank;
+	}
+	return $max_rank;
+}
+
+sub val {
+	my $val = shift;
+	my $r = rank2($val);
+	$val =~ y/AKQT98765432J/ABCDEFGHIJKLM/;
+	return "$r$val";
+}
+
+my $i = 1;
+my $sum;
+for my $card (sort { val($b) cmp val($a) } keys %cards) {
+	say "$card $i ", val($card);
+	$sum += $cards{$card} * $i++;
+}
+
+say $sum;
+
-- 
2.43.0