Challenge 289 Solutions (Raku)

2 files changed, 38 insertions, 0 deletions

diff --git a/challenge-289/mark-anderson/raku/ch-1.raku b/challenge-289/mark-anderson/raku/ch-1.raku
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+++ b/challenge-289/mark-anderson/raku/ch-1.raku
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+#!/usr/bin/env raku
+use Test;
+
+is third-max(5,6,4,1), 4;
+is third-max(4,5),     5;
+is third-max(1,2,2,3), 1;
+
+sub third-max(+@ints)
+{
+    .[2] // .[0] given @ints.unique.sort(-*)
+}
diff --git a/challenge-289/mark-anderson/raku/ch-2.raku b/challenge-289/mark-anderson/raku/ch-2.raku
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+++ b/challenge-289/mark-anderson/raku/ch-2.raku
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+#!/usr/bin/env raku
+
+my $text = chomp q:to/END/; 
+           This supposed Cambridge research is unfortunately an urban
+           legend. However, the effect has been studied. For example—
+           and with a title that probably made the journal’s editor a 
+           little nervous—Raeding wrods with jubmled lettres: there is 
+           a cost by Rayner, White, et. al. looked at reading speed and 
+           comprehension of jumbled text.
+           END
+
+say jumbled-letters($text);
+
+sub jumbled-letters($text)
+{
+    my @split = $text.split(/ \s+ || \— || \- /, :v);
+
+    for @split[0,2...*]
+    {
+        my @chars = .comb;
+        my @alphas = @chars.grep(* (elem) ['a'...'z','A'...'Z'], :k);
+        @chars[@alphas[1..*-2]] .= pick(*);
+        $_ = [~] @chars
+    }
+
+    [~] @split
+}