challenge 258, raku solutions

3 files changed, 35 insertions, 0 deletions

diff --git a/challenge-258/feng-chang/raku/ch-1.raku b/challenge-258/feng-chang/raku/ch-1.raku
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+++ b/challenge-258/feng-chang/raku/ch-1.raku
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+#!/bin/env raku
+
+unit sub MAIN(*@ints);
+
+put +@ints.grep(*.chars %% 2);
diff --git a/challenge-258/feng-chang/raku/ch-2.raku b/challenge-258/feng-chang/raku/ch-2.raku
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+++ b/challenge-258/feng-chang/raku/ch-2.raku
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+#!/bin/env raku
+
+unit sub MAIN(*@ints);
+
+my \k = @ints.pop;
+put @ints[(^+@ints).grep(*.base(2).comb.sum == k)].sum;
diff --git a/challenge-258/feng-chang/raku/test.raku b/challenge-258/feng-chang/raku/test.raku
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index 0000000000..fdfc671667
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+++ b/challenge-258/feng-chang/raku/test.raku
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+#!/bin/env raku
+
+# The Weekly Challenge 258
+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, Count Even Digits Number
+pwc-test './ch-1.raku', <10 1 111 24 1000>, 3, 'Count Even Digits Number: 10, 1, 111, 24, 1000 => 3';
+pwc-test './ch-1.raku', <111 1 11111>,      0, 'Count Even Digits Number: 111, 1, 11111        => 0';
+pwc-test './ch-1.raku', <2 8 1024 256>,     1, 'Count Even Digits Number: 2, 8, 1024, 256      => 1';
+
+# Task 2, Sum of Values
+pwc-test './ch-2.raku', <2 5 9 11 3>, 1, 17, 'Sum of Values: @ints = (2, 5, 9, 11, 3), $k = 1 => 17';
+pwc-test './ch-2.raku', <2 5 9 11 3>, 2, 11, 'Sum of Values: @ints = (2, 5, 9, 11, 3), $k = 2 => 11';
+pwc-test './ch-2.raku', <2 5 9 11 3>, 0,  2, 'Sum of Values: @ints = (2, 5, 9, 11, 3), $k = 0 => 2';