solution week 252-1

1 files changed, 34 insertions, 0 deletions

diff --git a/challenge-252/wambash/raku/ch-1.raku b/challenge-252/wambash/raku/ch-1.raku
new file mode 100644
index 0000000000..146087b399
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+++ b/challenge-252/wambash/raku/ch-1.raku
@@ -0,0 +1,34 @@
+#!/usr/bin/env raku
+use Prime::Factor;
+
+sub specal-numbers (+@ints) {
+    my $size = @ints.elems;
+
+    1..* Z=> @ints
+    andthen .grep:  $size %% *.key
+    andthen .map: *.value²
+    andthen .sum
+}
+
+sub specal-numbers-pf (+@ints) {
+    @ints
+    andthen .elems
+    andthen divisors $_
+    andthen .map: *-1
+    andthen @ints[|$_]
+    andthen .map: *²
+    andthen .sum
+}
+
+multi MAIN (Bool :test($)!) {
+    use Test;
+    is specal-numbers(1..4),21;
+    is specal-numbers(2, 7, 1, 19, 18, 3),63;
+    is specal-numbers-pf(1..4),21;
+    is specal-numbers-pf(2, 7, 1, 19, 18, 3),63;
+    done-testing;
+}
+
+multi MAIN (+@ints) {
+    say specal-numbers @ints
+}