slight improvements

2 files changed, 6 insertions, 10 deletions

diff --git a/challenge-083/mark-anderson/raku/ch-1.p6 b/challenge-083/mark-anderson/raku/ch-1.p6
index c001e08bc8..5211876e52 100644
--- a/challenge-083/mark-anderson/raku/ch-1.p6
+++ b/challenge-083/mark-anderson/raku/ch-1.p6
@@ -1,13 +1,10 @@
 use Test;
-
 plan 2;
 
 my $S = "The Weekly Challenge";
-
 ok words-length($S) == 6, "$S = 6";
 
 $S = "The purpose of our lives is to be happy";
-
 ok words-length($S) == 23, "$S = 23";
 
 sub words-length($S) {
diff --git a/challenge-083/mark-anderson/raku/ch-2.p6 b/challenge-083/mark-anderson/raku/ch-2.p6
index 73732ade9d..0398c914d0 100644
--- a/challenge-083/mark-anderson/raku/ch-2.p6
+++ b/challenge-083/mark-anderson/raku/ch-2.p6
@@ -1,15 +1,14 @@
-unit sub MAIN(*@A where (.elems > 1 and .all ~~ UInt and .all > 0));
+subset Positive of UInt where * > 0;
+
+unit sub MAIN(*@A where (.all ~~ Positive and .elems > 1));
 
 my $A = gather {
-    for @A.keys.combinations.skip -> @C {
+    for @A.keys.combinations(1..@A.end) -> @C {
         my @N = @A;
         @N[@C].map(* *= -1);
         take [@N.sum, @C.elems, @N] if @N.sum >= 0; 
     }
 } 
 
-my ($Sum,   $A2) = (min classify { .[0] }, $A).kv;
-my ($Flips, $A3) = (min classify { .[1] }, |$A2).kv; 
-
-say "Sum   = $Sum\nFlips = $Flips\n";
-say .[2].fmt("(%d)", " + ") for |$A3;
+say $A.classify(*[0]).min.value.
+       classify(*[1]).min.key;