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optimization

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This commit is contained in:
Yanick Champoux 2017-12-03 13:12:11 -05:00
parent 467387618b
commit eebed65b33
1 changed files with 11 additions and 14 deletions
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17
day3/day3b.pm
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@ -10,19 +10,16 @@ my $spiral = Array::Tour::Spiral->new( dimensions => $num );
my $grid = [];
my $first = 1;
my $current = 0;
while ( my ($x,$y) = $spiral->next->@* ) {
if( $first) {
$grid->[$x][$y] = 1;
$first = 0;
}
else {
$grid->[$x][$y] = sum map {
until ( $current > $num ) {
my ($x,$y) = $spiral->next->@*;
$current = $grid->[$x][$y] =
$first ? $first--
: sum map {
my $i = $_;
map { $grid->[$x+$i][$y+$_] } -1..1
} -1..1
}
warn $grid->[$x][$y];
exit say $_ for grep { $_ > $num } $grid->[$x][$y];
}
say $current;