solutions week 256

2 files changed, 40 insertions, 0 deletions

diff --git a/challenge-256/wambash/raku/ch-1.raku b/challenge-256/wambash/raku/ch-1.raku
new file mode 100644
index 0000000000..f39495c7eb
--- /dev/null
+++ b/challenge-256/wambash/raku/ch-1.raku
@@ -0,0 +1,19 @@
+#!/usr/bin/env raku
+
+sub maximum-pairs (+words) {
+    words.kv
+    andthen .map: -> $i, $w { [+] $w.flip «eq« words.skip: $i + 1  }\
+    andthen .sum
+}
+
+multi MAIN (Bool :test($)!) {
+    use Test;
+    is maximum-pairs(<ab de ed bc>),1;
+    is maximum-pairs(<aa ba cd ed>),0;
+    is maximum-pairs(<uv qp st vu mn pq>),2;
+    done-testing;
+}
+
+multi MAIN (+words) {
+    say maximum-pairs words
+}
diff --git a/challenge-256/wambash/raku/ch-2.raku b/challenge-256/wambash/raku/ch-2.raku
new file mode 100644
index 0000000000..90d80fcf51
--- /dev/null
+++ b/challenge-256/wambash/raku/ch-2.raku
@@ -0,0 +1,21 @@
+#!/usr/bin/env raku
+
+sub merge-strings (+string) {
+    string
+    andthen .map: *.comb
+    andthen roundrobin |$_, :slip
+    andthen .join
+}
+
+multi MAIN (Bool :test($)!) {
+    use Test;
+    is merge-strings(<abcd 1234>),    'a1b2c3d4';
+    is merge-strings('abc','12345'),  'a1b2c345';
+    is merge-strings(<abcde 123>),    'a1b2c3de';
+    is merge-strings(<abcde 123 AB>), 'a1Ab2Bc3de';
+    done-testing;
+}
+
+multi MAIN (+string) {
+    say merge-strings string
+}