solution week 270-1

1 files changed, 23 insertions, 0 deletions

diff --git a/challenge-270/wambash/raku/ch-1.raku b/challenge-270/wambash/raku/ch-1.raku
new file mode 100644
index 0000000000..7cf6ef93ff
--- /dev/null
+++ b/challenge-270/wambash/raku/ch-1.raku
@@ -0,0 +1,23 @@
+#!/usr/bin/env raku
+use v6.*;
+
+sub special-position (+@matrix) {
+    my $columns := ([Z^] @matrix).grep: *.so,:k;
+    my $rows    := @matrix.grep: *.one,:k;
+
+    $rows X, $columns
+    andthen .grep: -> ($r, $c) { @matrix[$r;$c] }\
+    andthen .elems
+}
+
+multi MAIN (Bool :test($)!) {
+    use Test;
+    is-deeply special-position(<1 1 0>,<0 0 1>,<1 0 0>),1;
+    is-deeply special-position(<1 0 0>,<0 0 1>,<1 0 0>),1;
+    is-deeply special-position(<1 0 0>,<0 1 0>,<0 0 1>),3;
+    done-testing;
+}
+
+multi MAIN (+@matrix) {
+    say special-position @matrix.map( *.comb».Int)
+}