2 files changed, 44 insertions, 0 deletions
diff --git a/challenge-238/cheok-yin-fung/perl/ch-1.pl b/challenge-238/cheok-yin-fung/perl/ch-1.pl
new file mode 100644
index 0000000000..be69f62b75
--- /dev/null
+++ b/challenge-238/cheok-yin-fung/perl/ch-1.pl
@@ -0,0 +1,16 @@
+# The Weekly Challenge 238
+# Task 1 Running Sum
+use v5.30.0;
+use warnings;
+use List::Util qw/reductions/;
+
+sub rs {
+    my @int = @_;
+    return [reductions {$a+$b} @int];
+}
+
+use Test::More tests=>3;
+use Test::Deep;
+cmp_deeply rs(1, 2, 3, 4, 5), [1, 3, 6, 10, 15];
+cmp_deeply rs(1, 1, 1, 1, 1), [1, 2, 3, 4, 5];
+cmp_deeply rs(0, -1, 1, 2), [0, -1, 0, 2];
diff --git a/challenge-238/cheok-yin-fung/perl/ch-2.pl b/challenge-238/cheok-yin-fung/perl/ch-2.pl
new file mode 100644
index 0000000000..c92df09042
--- /dev/null
+++ b/challenge-238/cheok-yin-fung/perl/ch-2.pl
@@ -0,0 +1,28 @@
+# The Weekly Challenge 238
+# Task 2 Persistence Sort
+use v5.30.0;
+use warnings;
+use List::Util qw/product/;
+
+sub psort {
+    my @int = @_;
+    my %persist;
+    sub find_persist {
+        my $persist = 0;
+        my $res = $_[0];
+        while ($res >= 10) {
+            $res = product split "", $res;
+            $persist++;
+        }
+        return $persist;
+    }
+    for my $i (@int) {
+        $persist{$i} = find_persist($i);
+    }
+    return [sort { $persist{$a} <=> $persist{$b} || $a <=> $b } @int]
+}
+
+use Test::More tests=>2;
+use Test::Deep;
+cmp_deeply psort(15, 99, 1, 34), [1, 15, 34, 99];
+cmp_deeply psort(50, 25, 33, 22), [22, 33, 50, 25];