From 33dcd8be189e911df40a39fa97f481f02c06bd84 Mon Sep 17 00:00:00 2001
From: CY Fung <fungcheokyin@gmail.com>
Date: Sun, 28 Jan 2024 20:47:04 +0800
Subject: Week 253

---
 challenge-253/cheok-yin-fung/perl/ch-1.pl | 18 ++++++++++++++++++
 challenge-253/cheok-yin-fung/perl/ch-2.pl | 31 +++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+)
 create mode 100644 challenge-253/cheok-yin-fung/perl/ch-1.pl
 create mode 100644 challenge-253/cheok-yin-fung/perl/ch-2.pl

diff --git a/challenge-253/cheok-yin-fung/perl/ch-1.pl b/challenge-253/cheok-yin-fung/perl/ch-1.pl
new file mode 100644
index 0000000000..6f3bd5ec43
--- /dev/null
+++ b/challenge-253/cheok-yin-fung/perl/ch-1.pl
@@ -0,0 +1,18 @@
+# The Weekly Challenge 253
+# Task 1 Split Strings
+use v5.30.0;
+use warnings;
+
+sub ss {
+    my @arr = $_[0]->@*;
+    my $sep = $_[1];
+    my $Sep = $sep;
+    $Sep =~ s/(\W)/\\$1/g;
+    my @new = grep {$_} split /$Sep/, join $sep, @arr;
+    return [@new];
+}
+
+use Test2::V0;
+is ss(["one.two.three","four.five","six"], "."), ["one", "two", "three", "four","five", "six"];
+is ss(['$perl$$', '$$raku$'], '$'), ["perl", "raku"];
+done_testing();
diff --git a/challenge-253/cheok-yin-fung/perl/ch-2.pl b/challenge-253/cheok-yin-fung/perl/ch-2.pl
new file mode 100644
index 0000000000..b3afab1541
--- /dev/null
+++ b/challenge-253/cheok-yin-fung/perl/ch-2.pl
@@ -0,0 +1,31 @@
+# The Weekly Challenge 253
+# Task 2 Weakest Row
+use v5.30.0;
+use warnings;
+
+sub wr {
+    my $matrix = $_[0];
+    my @rows = $matrix->@*;
+    my @weight = map {scalar grep {$_} $_->@*} @rows;
+    my @ord = sort {$weight[$a] <=> $weight[$b] || $a<=>$b} 0..$#rows;
+    return [@ord];
+}
+
+use Test2::V0;
+is wr([
+                   [1, 1, 0, 0, 0],
+                   [1, 1, 1, 1, 0],
+                   [1, 0, 0, 0, 0],
+                   [1, 1, 0, 0, 0],
+                   [1, 1, 1, 1, 1]
+                 ]
+), [2,0,3,1,4];
+
+is wr([
+                   [1, 0, 0, 0],
+                   [1, 1, 1, 1],
+                   [1, 0, 0, 0],
+                   [1, 0, 0, 0]
+                 ]
+), [0,2,3,1];
+done_testing();
-- 
cgit