Day 3: use $_ everywhere

[aoc.git] / 2022 / 05.pl

diff --git a/2022/05.pl b/2022/05.pl
index a7e1f9db71bcd52fbef00ca118a04c726d97e9a8..5002bf9dd103d0b4c6e71fb59394d1bf1cd2f33d 100755 (executable)
--- a/2022/05.pl
+++ b/2022/05.pl
@@ -8,9 +8,9 @@ my $sum;
 while (<>) {
        chomp;
        substr($_, length()/2, 0) = ' ';
-       my ($c) = /(.)\S*\s\S*\1/;
-       $sum += $c =~ /[A-Z]/
-               ? ord($c) - ord('A') + 27
-               : ord($c) - ord('a') + 1; 
+       s/\A\S*(.)\S*\s\S*\1\S*\z/$1/;
+       $sum += /[A-Z]/
+               ? ord() - ord('A') + 27
+               : ord() - ord('a') + 1; 
 }
 say $sum;