challenge 320, raku solutions

3 files changed, 34 insertions, 0 deletions

diff --git a/challenge-320/feng-chang/raku/ch-1.raku b/challenge-320/feng-chang/raku/ch-1.raku
new file mode 100755
index 0000000000..fcb275a500
--- /dev/null
+++ b/challenge-320/feng-chang/raku/ch-1.raku
@@ -0,0 +1,5 @@
+#!/bin/env raku
+
+unit sub MAIN(*@ints);
+
+put max(+@ints.grep(* > 0), +@ints.grep(* < 0));
diff --git a/challenge-320/feng-chang/raku/ch-2.raku b/challenge-320/feng-chang/raku/ch-2.raku
new file mode 100755
index 0000000000..9467265427
--- /dev/null
+++ b/challenge-320/feng-chang/raku/ch-2.raku
@@ -0,0 +1,5 @@
+#!/bin/env raku
+
+unit sub MAIN(*@ints where .all > 0);
+
+put abs(@ints.sum - @ints».comb.flat(:hammer).sum);
diff --git a/challenge-320/feng-chang/raku/test.raku b/challenge-320/feng-chang/raku/test.raku
new file mode 100755
index 0000000000..081b6d6239
--- /dev/null
+++ b/challenge-320/feng-chang/raku/test.raku
@@ -0,0 +1,24 @@
+#!/bin/env raku
+
+# The Weekly Challenge 320
+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, Maximum Count
+pwc-test './ch-1.raku', '--', <-3 -2 -1 1 2 3>, 3, 'Maximum Count: (-3,-2,-1,1,2,3) => 3';
+pwc-test './ch-1.raku', '--', <-2 -1 0 0 1>,    2, 'Maximum Count: (-2,-1,0,0,1)    => 2';
+pwc-test './ch-1.raku', '--', <1 2 3 4>,        4, 'Maximum Count: (1,2,3,4)        => 4';
+
+# Task 2, Sum Difference
+pwc-test './ch-2.raku', <1 23 4 5>,  18, 'Sum Difference: (1,23,4,5)  => 18';
+pwc-test './ch-2.raku', <1 2 3 4 5>,  0, 'Sum Difference: (1,2,3,4,5) =>  0';
+pwc-test './ch-2.raku', <1 2 34>,    27, 'Sum Difference: (1,2,34)    => 27';