solutions week 269

2 files changed, 51 insertions, 0 deletions

diff --git a/challenge-269/wambash/raku/ch-1.raku b/challenge-269/wambash/raku/ch-1.raku
new file mode 100644
index 0000000000..356a7d7a19
--- /dev/null
+++ b/challenge-269/wambash/raku/ch-1.raku
@@ -0,0 +1,21 @@
+#!/usr/bin/env raku
+
+sub bitwise-or (+ints) {
+    ints
+    andthen .grep: * %% 2
+    andthen .head: 2
+    andthen .elems == 2
+}
+
+multi MAIN (Bool :test($)!) {
+    use Test;
+    is bitwise-or(1,2,3,4,5), True;
+    is bitwise-or(2,3,8,16),  True;
+    is bitwise-or(1,3 ... 9), False;
+    is bitwise-or(1...10¹⁹),  True;
+    done-testing;
+}
+
+multi MAIN (+ints) {
+    say bitwise-or +ints
+}
diff --git a/challenge-269/wambash/raku/ch-2.raku b/challenge-269/wambash/raku/ch-2.raku
new file mode 100644
index 0000000000..3a7c66c701
--- /dev/null
+++ b/challenge-269/wambash/raku/ch-2.raku
@@ -0,0 +1,30 @@
+#!/usr/bin/env raku
+
+proto distributive-reducer ((@arr1,@arr2),  $int) {*}
+multi distributive-reducer ((@arr1, @arr2), $int where @arr1 ~~ Empty)             { ($int,),       @arr2          }
+multi distributive-reducer ((@arr1, @arr2), $int where @arr2 ~~ Empty )            { @arr1,         ($int,)        }
+multi distributive-reducer ((@arr1, @arr2), $int where {@arr1.tail > @arr2.tail} ) { (|@arr1,$int), @arr2          }
+multi distributive-reducer ((@arr1, @arr2), $int  )                                { @arr1,         (|@arr2, $int) }
+
+sub distributive-elements (+ints) {
+  ints
+  andthen ((),()), |ints
+  andthen .reduce: &distributive-reducer
+  andthen |.head,|.skip.head
+}
+
+multi MAIN (Bool :test($)!) {
+    use Test;
+    is-deeply distributive-reducer(((),()),1), ((1,),());
+    is-deeply distributive-reducer(((1,),()),2), ((1,),(2,));
+    is-deeply distributive-reducer(((1,3),(2,)),4), ((1,3,4),(2,));
+    is-deeply distributive-reducer(((1,),(2,)),3), ((1,),(2,3));
+    is distributive-elements(2,1,3,4,5), (2,3,4,5,1);
+    is distributive-elements(3, 2, 4), (3, 4, 2);
+    is distributive-elements(5, 4, 3, 8), (5, 3, 4, 8);
+    done-testing;
+}
+
+multi MAIN (+ints) {
+    put distributive-elements ints
+}