From 5095f6fbc768eee3c42760192ebd8dad2bbfe6ba Mon Sep 17 00:00:00 2001
From: Adam Russell <ac.russell@live.com>
Date: Wed, 1 Dec 2021 20:26:04 -0500
Subject: Perl solutions for Challenge 141.

---
 challenge-141/adam-russell/perl/ch-1.pl | 31 +++++++++++++++++++++++++++++++
 challenge-141/adam-russell/perl/ch-2.pl | 24 ++++++++++++++++++++++++
 2 files changed, 55 insertions(+)
 create mode 100644 challenge-141/adam-russell/perl/ch-1.pl
 create mode 100644 challenge-141/adam-russell/perl/ch-2.pl

diff --git a/challenge-141/adam-russell/perl/ch-1.pl b/challenge-141/adam-russell/perl/ch-1.pl
new file mode 100644
index 0000000000..bc9d36902f
--- /dev/null
+++ b/challenge-141/adam-russell/perl/ch-1.pl
@@ -0,0 +1,31 @@
+use strict;
+use warnings;
+##
+# Write a script to find lowest 10 positive integers 
+# having exactly 8 divisors.
+##
+
+sub factor{
+    my($n) = @_;
+    my @factors = (1, $n);
+    foreach my $j (2..sqrt($n)){
+        push @factors, $j if $n % $j == 0;
+        push @factors, ($n / $j) if $n % $j == 0 && $j ** 2 != $n;
+    }    
+    return @factors;  
+}
+
+sub first_ten_with_eight{
+    my $i = 0;
+    my @first_ten;  
+    do{
+        my @factors = factor($i);
+        push @first_ten, $i if @factors == 8;   
+        $i++; 
+    }while(@first_ten != 10); 
+    return @first_ten;
+}
+
+MAIN:{
+    print join(", ", first_ten_with_eight()) . "\n";   
+}  
diff --git a/challenge-141/adam-russell/perl/ch-2.pl b/challenge-141/adam-russell/perl/ch-2.pl
new file mode 100644
index 0000000000..c5e3a80dd2
--- /dev/null
+++ b/challenge-141/adam-russell/perl/ch-2.pl
@@ -0,0 +1,24 @@
+use strict;
+use warnings;
+##
+# You are given positive integers, $m and $n.
+# Write a script to find total count of integers 
+# created using the digits of $m which is also 
+# divisible by $n.
+##
+use Data::PowerSet q/powerset/;
+
+sub like_numbers{
+    my($m, $n) = @_; 
+    my @divisible; 
+    for my $subset (@{powerset(split(//, $m))}){
+        my $i = join("", @$subset);
+        push @divisible, $i if $i && $i != $m && $i % $n == 0;
+    }  
+    return @divisible;
+}
+
+MAIN:{
+    print like_numbers(1234, 2) . "\n";
+    print like_numbers(768, 4) . "\n";
+}
-- 
cgit