Day 7: not bad

diff --git a/2023/13.pl b/2023/13.pl
new file mode 100755 (executable)
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 (executable)
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;
+