challenge 243, raku solutions

3 files changed, 35 insertions, 0 deletions

diff --git a/challenge-243/feng-chang/raku/ch-1.raku b/challenge-243/feng-chang/raku/ch-1.raku
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+++ b/challenge-243/feng-chang/raku/ch-1.raku
@@ -0,0 +1,5 @@
+#!/bin/env raku
+
+unit sub MAIN(*@nums);
+
+put +(^+@nums).combinations(2).grep({ @nums[.[0]] > 2 * @nums[.[1]] });
diff --git a/challenge-243/feng-chang/raku/ch-2.raku b/challenge-243/feng-chang/raku/ch-2.raku
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+++ b/challenge-243/feng-chang/raku/ch-2.raku
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+#!/bin/env raku
+
+unit sub MAIN(*@nums);
+
+my \N = +@nums;
+put (^N X ^N).map({ floor(@nums[.[0]] / @nums[.[1]]) }).sum;
diff --git a/challenge-243/feng-chang/raku/test.raku b/challenge-243/feng-chang/raku/test.raku
new file mode 100755
index 0000000000..5f69216203
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+++ b/challenge-243/feng-chang/raku/test.raku
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+#!/bin/env raku
+
+# The Weekly Challenge 243
+use Test;
+
+sub pwc-test(Str:D $script, Bool :$deeply? = False, *@input) {
+    my ($expect, $assertion) = @input.splice(*-2, 2);
+    my $p = run $script, |@input, :out;
+    if $deeply {
+        is-deeply $p.out.slurp(:close).chomp.words.Bag, $expect, $assertion;
+    } else {
+        is $p.out.slurp(:close).chomp, $expect, $assertion;
+    }
+}
+
+# Task 1, Reverse Pairs
+pwc-test './ch-1.raku', |<1 3 2 3 1>, 2, 'Reverse Pairs: @nums = (1, 3, 2, 3, 1) => 2';
+pwc-test './ch-1.raku', |<2 4 3 5 1>, 3, 'Reverse Pairs: @nums = (2, 4, 3, 5, 1) => 3';
+
+# Task 2, Floor Sum
+pwc-test './ch-2.raku', |<2 5 9>,         10, 'Floor Sum: (2, 5, 9)             => 10';
+pwc-test './ch-2.raku', |<7 7 7 7 7 7 7>, 49, 'Floor Sum: (7, 7, 7, 7, 7, 7, 7) => 49';
+
+done-testing;