Challenge 214 Solutions (Raku)

2 files changed, 43 insertions, 0 deletions

diff --git a/challenge-214/mark-anderson/raku/ch-1.raku b/challenge-214/mark-anderson/raku/ch-1.raku
new file mode 100644
index 0000000000..aeb0059f6e
--- /dev/null
+++ b/challenge-214/mark-anderson/raku/ch-1.raku
@@ -0,0 +1,16 @@
+#!/usr/bin/env raku
+use Test;
+
+is-deeply rank-score(<1 2 4 3 5>),     <5 4 S B G>>>.Str;
+is-deeply rank-score(<8 5 6 7 4>),     <G 4 B S 5>>>.Str;
+is-deeply rank-score(<3 5 4 2>),       <B G S 4>>>.Str;
+is-deeply rank-score(<2 5 2 1 7 5 1>), <B S B 4 G S 4>>>.Str;
+is-deeply rank-score(<3 5>),           <S G>;
+
+sub rank-score($a)
+{
+    my $u := $a.unique.sort(-*);
+    my $s := <G S B 4 5>...*;
+
+    $a.trans($u => $s.head($u)).comb(/<alnum>/)
+}
diff --git a/challenge-214/mark-anderson/raku/ch-2.raku b/challenge-214/mark-anderson/raku/ch-2.raku
new file mode 100644
index 0000000000..fcc690a760
--- /dev/null
+++ b/challenge-214/mark-anderson/raku/ch-2.raku
@@ -0,0 +1,27 @@
+#!/usr/bin/env raku
+use Adverb::Eject;
+use Test;
+
+is collect-points(2,4,3,3,3,4,5,4,2),                                   23;
+is collect-points(1,2,2,2,2,1),                                         20;
+is collect-points(1),                                                    1;
+is collect-points(2,2,2,1,1,2,2,2),                                     40;
+is collect-points(9,1,1,1,35,35,44,1,5,5,2,5,2,5,44,85,7,7,7,85,1,1,1), 91;
+
+sub collect-points(*@a)
+{
+    sum gather while @a
+    {
+        my $c = @a.pairs.classify({ .value }, :as{ .key });
+        my $p = $c.first({ consecutive(.value) });
+        my $a = $p ?? $p.value !! $c{ @a.Bag.minpairs.head.key };
+
+        @a[ $a ]:eject;
+        take $a.elems ** 2
+    }
+}
+
+sub consecutive(@a)
+{
+    .tail - .head == .end and [<] $_ given @a 
+}