From 24f03aa5bd6e1ef25774397437c52dc574d206bd Mon Sep 17 00:00:00 2001
From: deadmarshal <adeadmarshal@gmail.com>
Date: Sun, 3 Dec 2023 10:50:45 -0500
Subject: TWC245

---
 challenge-245/deadmarshal/blog.txt     |  1 +
 challenge-245/deadmarshal/perl/ch-1.pl | 12 ++++++++++++
 challenge-245/deadmarshal/perl/ch-2.pl | 23 +++++++++++++++++++++++
 3 files changed, 36 insertions(+)
 create mode 100644 challenge-245/deadmarshal/blog.txt
 create mode 100644 challenge-245/deadmarshal/perl/ch-1.pl
 create mode 100644 challenge-245/deadmarshal/perl/ch-2.pl

diff --git a/challenge-245/deadmarshal/blog.txt b/challenge-245/deadmarshal/blog.txt
new file mode 100644
index 0000000000..9744565d32
--- /dev/null
+++ b/challenge-245/deadmarshal/blog.txt
@@ -0,0 +1 @@
+https://deadmarshal.blogspot.com/2023/12/twc245.html
diff --git a/challenge-245/deadmarshal/perl/ch-1.pl b/challenge-245/deadmarshal/perl/ch-1.pl
new file mode 100644
index 0000000000..757fa5bb5f
--- /dev/null
+++ b/challenge-245/deadmarshal/perl/ch-1.pl
@@ -0,0 +1,12 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use Data::Show;
+
+sub sort_language{
+  @{$_[0]}[map{$_-1}@{$_[1]}];
+}
+
+print show sort_language(['perl','c','python'],[2,1,3]);
+print show sort_language(['c++','haskell','java'],[1,3,2]);
+
diff --git a/challenge-245/deadmarshal/perl/ch-2.pl b/challenge-245/deadmarshal/perl/ch-2.pl
new file mode 100644
index 0000000000..5c67abf853
--- /dev/null
+++ b/challenge-245/deadmarshal/perl/ch-2.pl
@@ -0,0 +1,23 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use Algorithm::Combinatorics qw(permutations subsets);
+
+sub largest_of_three{
+  my $res = -1;
+  foreach my $i(0..@{$_[0]}){
+    foreach my $subset(subsets $_[0],$i){
+      foreach my $p(permutations $subset){
+        next unless @$p;
+        my $n = join '',@$p;
+        $res = $n if $n > $res && $n % 3 == 0;
+      }
+    }
+  }
+  $res
+}
+
+printf "%d\n",largest_of_three([8,1,9]);
+printf "%d\n",largest_of_three([8,6,7,1,0]);
+printf "%d\n",largest_of_three([1]);
+
-- 
cgit