Challenge 271 Solutions (Raku)

2 files changed, 36 insertions, 0 deletions

diff --git a/challenge-271/mark-anderson/raku/ch-1.raku b/challenge-271/mark-anderson/raku/ch-1.raku
new file mode 100644
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+++ b/challenge-271/mark-anderson/raku/ch-1.raku
@@ -0,0 +1,26 @@
+#!/usr/bin/env raku
+use Test;
+
+is max-ones([ 
+                [0, 1],
+                [1, 0],
+            ]),              1;
+
+is max-ones([ 
+                [0, 0, 0],
+                [1, 0, 1],
+            ]),              2;
+
+is max-ones([ 
+                [0, 0],
+                [1, 1],
+                [0, 0],
+            ]),              2;
+
+sub max-ones(@m)
+{
+    @m>>.sum
+        .max(:k) # requires rakudo 2023.08 or later
+        .head
+        .succ 
+}
diff --git a/challenge-271/mark-anderson/raku/ch-2.raku b/challenge-271/mark-anderson/raku/ch-2.raku
new file mode 100644
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--- /dev/null
+++ b/challenge-271/mark-anderson/raku/ch-2.raku
@@ -0,0 +1,10 @@
+#!/usr/bin/env raku
+use Test;
+
+is-deeply sort-by-one-bits(^9),                  (0,1,2,4,8,3,5,6,7);
+is-deeply sort-by-one-bits(1024,512,256,128,64), (64,128,256,512,1024);
+
+sub sort-by-one-bits(*@ints)
+{
+    @ints.sort({ .base(2).comb.sum, $_ })
+}