2 files changed, 97 insertions, 0 deletions
diff --git a/challenge-193/solathian/perl/ch-1.pl b/challenge-193/solathian/perl/ch-1.pl
new file mode 100644
index 0000000000..f458de8a24
--- /dev/null
+++ b/challenge-193/solathian/perl/ch-1.pl
@@ -0,0 +1,30 @@
+#!usr/bin/perl
+use v5.32;
+use warnings;
+
+use feature 'signatures';
+no  warnings 'experimental';
+
+use Algorithm::Combinatorics qw(variations_with_repetition);
+
+# Challange 193 - 1 - Binary String
+# You are given an integer, $n > 0.
+# Write a script to find all possible binary numbers of size $n.
+
+sub binString($n)
+{
+    my @resultArr;
+    
+    foreach my $arrRef (variations_with_repetition( ['0', '1'], $n))
+    {
+        push(@resultArr, join('', @$arrRef));   # re-create the string from the array and push
+    }
+    
+    say join(', ', @resultArr);     # create result string from the collected strings
+
+}
+
+# binString(1);     # 0, 1
+# binString(2);     # Output: 00, 11, 01, 10
+# binString(3);     # Output: 000, 001, 010, 100, 111, 110, 101, 011
+# binString(16);    # ...
diff --git a/challenge-193/solathian/perl/ch-2.pl b/challenge-193/solathian/perl/ch-2.pl
new file mode 100644
index 0000000000..9a66337344
--- /dev/null
+++ b/challenge-193/solathian/perl/ch-2.pl
@@ -0,0 +1,67 @@
+#!usr/bin/perl
+use v5.32;
+use warnings;
+
+use feature 'signatures';
+no  warnings 'experimental';
+
+use Clone qw(clone);
+
+# Challange 193 - 2 - Odd String
+
+
+# You are given a list of strings of same length, @s.
+# Write a script to find the odd string in the given list. Use positional value of alphabet starting with 0, i.e. a = 0, b = 1, ... z = 25.
+# Find the difference array for each string as shown in the example. Then pick the odd one out.
+
+sub oddString($listRef)
+{
+    my @differenceArrays;
+
+    foreach my $string (@$listRef)
+    {
+        my @tempArray;
+        my @array = split('', $string);
+        
+        map($_ = (ord($_) - ord("a")), @array);
+        
+        for(my $i = 0; $i < $#array; $i++)
+        {
+            push(@tempArray, ($array[$i + 1] - $array[$i]));
+        }
+
+        push(@differenceArrays, join(',', @tempArray));
+    }   
+
+
+    
+    for(my $i = 0; $i < @differenceArrays; $i++)
+    {
+        # save and remove the element from the array
+        my $current = clone($differenceArrays[$i]);
+        $differenceArrays[$i] =  undef;
+
+        
+        # check if the deepcopied array is still present in the difference array, if not then it is odd
+        if(not ($current ~~ @differenceArrays))
+        {
+            say "The difference array for \"". $listRef->[$i] . "\" is odd";
+            last;
+        }
+        
+        # restore
+        $differenceArrays[$i] = $current; 
+    }
+    
+    say "Did not find Odd element.";
+}
+
+# my @s = ("aaa", "bob", "ccc", "ddd");
+# oddString(\@s);
+# The difference array for "bob" is the odd one.
+
+
+
+# my @s2 = ("adc", "wzy", "abc");
+# oddString(\@s2);
+# The difference array for "abc" is the odd one.
+\ No newline at end of file