[rosalind] flatten some mRNA whatever that might be

Author: stmuk

categories/rosalind/mrna-grondilu.pl

@@ -42,7 +42,7 @@ ($rna)
     %count{.value}++ for RNA-codon;
 
     my $count = 1;
-    for $rna.comb, 'Stop' {
+    for ($rna.comb, 'Stop').flat {
         $count *= %count{$_};
         $count %= 1_000_000;
     }