From 123cfe9215db99c3f6da21a12731b5c0f99f288d Mon Sep 17 00:00:00 2001
From: RibTips <rib@tips.com>
Date: Sat, 6 May 2023 00:27:45 -0400
Subject: Challenge-215 Solutions from Ribtips

---
 challenge-215/ribtips/README       |  1 +
 challenge-215/ribtips/perl/ch-1.pl | 35 +++++++++++++++++++++++++++++++
 challenge-215/ribtips/perl/ch-2.pl | 43 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 79 insertions(+)
 create mode 100644 challenge-215/ribtips/README
 create mode 100644 challenge-215/ribtips/perl/ch-1.pl
 create mode 100644 challenge-215/ribtips/perl/ch-2.pl

diff --git a/challenge-215/ribtips/README b/challenge-215/ribtips/README
new file mode 100644
index 0000000000..8e1eb6958f
--- /dev/null
+++ b/challenge-215/ribtips/README
@@ -0,0 +1 @@
+Solution by RibTips
diff --git a/challenge-215/ribtips/perl/ch-1.pl b/challenge-215/ribtips/perl/ch-1.pl
new file mode 100644
index 0000000000..f02c9d1d7e
--- /dev/null
+++ b/challenge-215/ribtips/perl/ch-1.pl
@@ -0,0 +1,35 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+&main;
+
+sub main {
+    my @words=('abc','xyz','tsu');
+    &process_list(\@words);
+    my @words=('rat','cab','dad');
+    &process_list(\@words);
+    my @words=('x','y','z');
+    &process_list(\@words);
+}
+
+sub process_list {
+    my $array=shift;
+    my $output=0;
+    foreach my $word (@$array) {
+        $output+=&sort_string(\$word);    
+    }
+    print "Output: $output\n";
+}
+
+sub sort_string {
+    my $word=shift;
+    my $sorted=join "", sort split //,$$word;
+    if ($sorted eq $$word) {
+        return(0);
+    }
+    else {
+        return(1);
+    }
+}
diff --git a/challenge-215/ribtips/perl/ch-2.pl b/challenge-215/ribtips/perl/ch-2.pl
new file mode 100644
index 0000000000..fcfa53c85c
--- /dev/null
+++ b/challenge-215/ribtips/perl/ch-2.pl
@@ -0,0 +1,43 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+&main;
+
+sub main {
+    my @nums=(1,0,0,0,1);
+    &stuff_in(\@nums,1);
+    @nums=(1,0,0,0,1);
+    &stuff_in(\@nums,2);
+    @nums=(1,0,0,0,0,0,0,0,1);
+    &stuff_in(\@nums,3);
+}
+
+sub stuff_in {
+    my $nums=shift;
+    my $count=shift;
+    my $inserts=0;
+    &print_it($nums);
+    for (my $i=1;$i<scalar(@$nums);$i++) {
+        if ($$nums[$i] == 0 and $$nums[$i-1] + $$nums[$i+1] == 0) {
+            $$nums[$i]=1;
+            $inserts++;
+        } 
+    }
+    &print_it($nums);
+
+    if ($inserts == $count) {
+        print "Output: 1\n";
+    }
+    else {
+        print "Output: 0\n";
+    }
+
+}
+
+sub print_it {
+    my $array=shift;
+    my $string=join(",",@$array);
+    print " ($string) ";
+}
-- 
cgit