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#!/usr/bin/env perl
use strict;
use warnings;
use File::Slurp;
my $h = {
one => 1,
two => 2,
three => 3,
four => 4,
five => 5,
six => 6,
seven => 7,
eight => 8,
nine => 9
};
my ( $o, $t ) = ( 0, 0 );
foreach ( read_file( '01.txt' ) ) {
my ($f, $l) = (0, 0);
foreach my $c ( split //, $_ ) {
$c !~ /\d/ && next;
$f ? $l = $c : $f = $c;
$l = $l ? $l : $f;
}
$o += $f * 10 + $l;
}
print($o . "\n");
foreach ( read_file('01.txt') ) {
my ( $f, $l, $i, $s ) = ( 0, 0, -1, 0 );
foreach my $c ( split //, $_ ) {
$i++;
if ($s) { $s--; next; }
if ( $c =~ /\d/ ) {
$f ? $l = $c : $f = $c;
$l = $l ? $l : $f;
next;
}
foreach my $k ( keys %$h ) {
if ( substr( $_, $i - 1, length($k) ) eq $k ) {
my $b = $h->{$k};
$s = length($k) - 2;
$f ? $l = $b : $f = $b;
$l = $l ? $l : $f;
last;
}
}
}
$t += $f * 10 + $l;
}
print($t . "\n");
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