2 files changed, 41 insertions, 0 deletions
diff --git a/challenge-207/wambash/raku/ch-1.raku b/challenge-207/wambash/raku/ch-1.raku
new file mode 100644
index 0000000000..a89cd67974
--- /dev/null
+++ b/challenge-207/wambash/raku/ch-1.raku
@@ -0,0 +1,20 @@
+#!/usr/bin/env raku
+
+my @*keyboard := <qwertyuiop asdfghjkl zxcvbnm>».comb;
+
+sub keyboard-word (+@words,:@keyboard=@*keyboard) {
+    my @keyboard-rows = @keyboard.map: { rx:i/^ @^row + $/ };
+    my &keyboard-regex = rx/@keyboard-rows/;
+    @words.grep: *.contains:  &keyboard-regex #or @keyboard-rows.any;
+}
+
+multi MAIN (Bool :test($)!) {
+    use Test;
+    is-deeply keyboard-word(<Hello Alaska Dad Peace>),<Alaska Dad>;
+    is-deeply keyboard-word(<OMG Bye>), $();
+    done-testing;
+}
+
+multi MAIN (*@words,:$keyboard=@*keyboard) {
+    say keyboard-word @words, :$keyboard
+}
diff --git a/challenge-207/wambash/raku/ch-2.raku b/challenge-207/wambash/raku/ch-2.raku
new file mode 100644
index 0000000000..96556cb0fe
--- /dev/null
+++ b/challenge-207/wambash/raku/ch-2.raku
@@ -0,0 +1,21 @@
+#!/usr/bin/env raku
+
+sub h-index ( +@citation ) {
+    @citation
+    andthen 0, |$_
+    andthen .reduce: { $^count < $^n ?? $^count+1 !! last }
+}
+
+multi MAIN (Bool :test($)!) {
+    use Test;
+    is h-index(10,8,5,4,3), 4;
+    is h-index(25,8,5,3,3), 3;
+    is h-index(10 xx 20),   10;
+    is h-index(9...1),      5;
+    is h-index(9,7,6,2,1),  3;
+    done-testing;
+}
+
+multi MAIN ( *@citation ) {
+    say h-index  @citation
+}