diff options
| -rw-r--r-- | challenge-270/mark-anderson/raku/ch-1.raku | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/challenge-270/mark-anderson/raku/ch-1.raku b/challenge-270/mark-anderson/raku/ch-1.raku index 6babc2f8e3..8c3e8a8152 100644 --- a/challenge-270/mark-anderson/raku/ch-1.raku +++ b/challenge-270/mark-anderson/raku/ch-1.raku @@ -17,6 +17,6 @@ sub special-positions(@m) { my $cols = @m.map({ .grep(1, :k).List }).List; my $uniq-cols = ($cols.flat (-) $cols.flat.repeated).keys.List; - my $rows = $cols.grep(*.elems == 1); - ($rows (&) $uniq-cols).elems + my $rows = $cols.grep(1); + + ($rows (&) $uniq-cols) } |