45 lines
885 B
Perl
45 lines
885 B
Perl
|
use 5.20.0;
|
||
|
|
use warnings;
|
||
|
|
use experimental qw/
|
||
|
|
signatures
|
||
|
|
postderef
|
||
|
|
/;
|
||
|
|
|
||
|
|
my @marbles;
|
||
|
|
my $next_marble = 0;
|
||
|
|
my $index = 0;
|
||
|
|
|
||
|
|
my $nbr_elves = 419;
|
||
|
|
my $current_elf = 0;
|
||
|
|
my $last_marble = 72164 * 100;
|
||
|
|
|
||
|
|
my %score;
|
||
|
|
|
||
|
|
while() {
|
||
|
|
warn $next_marble if 0 == $next_marble % 10_000;
|
||
|
|
last if $next_marble > $last_marble;
|
||
|
|
if( $next_marble > 0 and 0 == $next_marble % 23 ) {
|
||
|
|
$index = ( $index - 7 + @marbles ) % @marbles;
|
||
|
|
my $score = $next_marble + splice @marbles, $index, 1;
|
||
|
|
$score{$current_elf} += $score;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$index = ( $index + 2 ) % ( @marbles || 1 );
|
||
|
|
splice @marbles, $index, 0, $next_marble;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
# say join ' ', @marbles;
|
||
|
|
# my $x = <>;
|
||
|
|
|
||
|
|
$next_marble++;
|
||
|
|
$current_elf++;
|
||
|
|
$current_elf %= $nbr_elves;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
use List::UtilsBy qw/ max_by /;
|
||
|
|
use List::AllUtils qw/ pairs max /;
|
||
|
|
|
||
|
|
say max values %score;
|