2 files changed, 47 insertions, 0 deletions
diff --git a/challenge-305/wambash/raku/ch-1.raku b/challenge-305/wambash/raku/ch-1.raku
new file mode 100644
index 0000000000..f56998526a
--- /dev/null
+++ b/challenge-305/wambash/raku/ch-1.raku
@@ -0,0 +1,24 @@
+#!/usr/bin/env raku
+
+sub binary-prefix (+binary) {
+    binary
+    andthen [\~] binary
+    andthen .map: { :2(.Str).is-prime }
+}
+
+multi MAIN (Bool :test($)!) {
+    use Test;
+    is binary-prefix(1,0,1), (False,True,True);
+    is binary-prefix(1,1,0), (False,True,False);
+    is binary-prefix(1, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1), (
+        False, True, True, False, False,
+        True, False, False, False, False,
+        False, False, False, False, False,
+        False, False, False, False, True
+    );
+    done-testing;
+}
+
+multi MAIN (+binary) {
+    put binary-prefix binary
+}
diff --git a/challenge-305/wambash/raku/ch-2.raku b/challenge-305/wambash/raku/ch-2.raku
new file mode 100644
index 0000000000..1f7df7fbf9
--- /dev/null
+++ b/challenge-305/wambash/raku/ch-2.raku
@@ -0,0 +1,23 @@
+#!/usr/bin/env raku
+
+sub alien-dictionary (+words,:@alien) {
+    my %alphabet = @alien.antipairs;
+    words.sort: { %alphabet{ .comb } }
+}
+
+multi MAIN (Bool :test($)!) {
+    use Test;
+    is alien-dictionary(
+        <perl python raku>,
+        :alien<h l a b y d e f g i r k m n o p q j s t u v w x c z>
+    ), <raku python perl>;
+    is alien-dictionary(
+        <the weekly challenge>,
+        :alien<c o r l d a b t e f g h i j k m n p q s w u v x y z>
+    ), <challenge the weekly>;
+    done-testing;
+}
+
+multi MAIN (+words,:$alien) {
+    put alien-dictionary words,:alien($alien.comb)
+}