solution week 167-1

1 files changed, 49 insertions, 0 deletions

diff --git a/challenge-167/wambash/raku/ch-1.raku b/challenge-167/wambash/raku/ch-1.raku
new file mode 100644
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+++ b/challenge-167/wambash/raku/ch-1.raku
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+#!/usr/bin/env raku
+
+multi is-circular-prime ($n --> Bool) {
+    samewith $n.comb
+}
+
+multi is-circular-prime (@n --> Bool) {
+   @n, *.rotate.cache ... *
+   andthen .head: @n.elems
+   andthen .map: *.join
+   andthen .all.is-prime.so
+}
+
+multi expand ( +@a (1, *@) ) { slip |@a X,  1,3,7,9   }
+multi expand ( +@a (3, *@) ) { slip |@a X,    3,7,9   }
+multi expand ( +@a (7, *@) ) { slip |@a X,      7,9   }
+
+multi find-uniq-circular (@k where  .head ~~ Int|Int(Str) ) {
+    samewith @k.map: *.comb
+}
+
+multi find-uniq-circular (@n) {
+    @n
+    andthen .grep: {@^p.head == @^p.min }\
+    andthen .grep: {@^p.head !== @^p.tail or  [==] @^p }\
+    andthen .grep: &is-circular-prime
+    andthen .map:  *.join
+}
+
+
+multi MAIN (Bool :test($)!) {
+    use Test;
+    is is-circular-prime(113.comb   ), True;
+    is is-circular-prime(133.comb   ), False;
+    is is-circular-prime(193939), True;
+    is is-circular-prime(1193.comb  ), True;
+    is find-uniq-circular(['1193',  11, 1 x 19]), <1193 11 1111111111111111111>;
+    is find-uniq-circular([1193, 1931, 1192, 9311,3119]), <1193> ;
+    done-testing;
+}
+
+
+multi MAIN ( :$n=6, :$s=2 ) {
+    (1,3,7), { .map: &expand } ... *
+    andthen .skip: $s
+    andthen .map: &find-uniq-circular
+    andthen .head: $n - $s
+    andthen .put
+}