sgreen solutions to challenge 332

7 files changed, 131 insertions, 2 deletions

diff --git a/challenge-332/sgreen/README.md b/challenge-332/sgreen/README.md
index e9aff07864..55f79903ab 100644
--- a/challenge-332/sgreen/README.md
+++ b/challenge-332/sgreen/README.md
@@ -1,3 +1,3 @@
-# The Weekly Challenge 331
+# The Weekly Challenge 332
 
-Blog: [The last word is my buddy](https://dev.to/simongreennet/weekly-challenge-the-last-word-is-my-buddy-13pm)
+Blog: [I sent my date a letter](https://dev.to/simongreennet/weekly-challenge-i-sent-my-date-a-letter-1ppg)
diff --git a/challenge-332/sgreen/blog.txt b/challenge-332/sgreen/blog.txt
new file mode 100644
index 0000000000..79a8bbe873
--- /dev/null
+++ b/challenge-332/sgreen/blog.txt
@@ -0,0 +1 @@
+https://dev.to/simongreennet/weekly-challenge-i-sent-my-date-a-letter-1ppg
\ No newline at end of file
diff --git a/challenge-332/sgreen/perl/ch-1.pl b/challenge-332/sgreen/perl/ch-1.pl
new file mode 100755
index 0000000000..6a342a2f81
--- /dev/null
+++ b/challenge-332/sgreen/perl/ch-1.pl
@@ -0,0 +1,19 @@
+#!/usr/bin/env perl
+
+use strict;
+use warnings;
+use feature 'say';
+use experimental 'signatures';
+
+sub main ($input_string) {
+    # Split the input string by hyphens
+    my @date_parts = split /-/, $input_string;
+
+    # Convert each part to binary and remove the '0b' prefix
+    my @binary_parts = map { sprintf( "%b", $_ ) } @date_parts;
+
+    # Join the binary parts with hyphens
+    say join( '-', @binary_parts );
+}
+
+main( $ARGV[0] );
diff --git a/challenge-332/sgreen/perl/ch-2.pl b/challenge-332/sgreen/perl/ch-2.pl
new file mode 100755
index 0000000000..7869696ba7
--- /dev/null
+++ b/challenge-332/sgreen/perl/ch-2.pl
@@ -0,0 +1,20 @@
+#!/usr/bin/env perl
+
+use strict;
+use warnings;
+use feature 'say';
+use experimental 'signatures';
+
+use List::Util 'all';
+
+sub main ($input_string) {
+    my %freq = ();
+    for my $char ( split //, $input_string ) {
+        $freq{$char}++;
+    }
+
+    my $all_odd = all { $_ % 2 == 1 } values %freq;
+    say $all_odd ? "true" : "false";
+}
+
+main( $ARGV[0] );
diff --git a/challenge-332/sgreen/python/ch-1.py b/challenge-332/sgreen/python/ch-1.py
new file mode 100755
index 0000000000..ece17b48dd
--- /dev/null
+++ b/challenge-332/sgreen/python/ch-1.py
@@ -0,0 +1,32 @@
+#!/usr/bin/env python3
+
+import sys
+
+
+def binary_date(input_string: str) -> str:
+    """Convert a date string in the format 'YYYY-MM-DD' to a binary representation.
+
+    Args:
+        input_string (str): The date string in 'YYYY-MM-DD' format.
+
+    Returns:
+        str: The binary representation of the date, with parts separated by hyphens.
+    """
+
+    # Split the input string by hyphens
+    date_parts = input_string.split('-')
+
+    # Convert each part to binary and remove the '0b' prefix
+    binary_parts = [bin(int(part))[2:] for part in date_parts]
+
+    # Join the binary parts with hyphens
+    return '-'.join(binary_parts)
+
+
+def main():
+    result = binary_date(sys.argv[1])
+    print(result)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/challenge-332/sgreen/python/ch-2.py b/challenge-332/sgreen/python/ch-2.py
new file mode 100755
index 0000000000..8a59970f37
--- /dev/null
+++ b/challenge-332/sgreen/python/ch-2.py
@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+
+import sys
+from collections import Counter
+
+
+def odd_letters(input_string: str) -> bool:
+    """
+    Check if all letters in the input string have an odd frequency.
+
+    Args:
+        input_string (str): The input string to check.
+    Returns:
+        bool: True if all letters have an odd frequency, False otherwise.
+    """
+
+    freq = Counter(input_string)
+    return all(count % 2 == 1 for count in freq.values())
+
+
+def main():
+    result = odd_letters(sys.argv[1])
+    print(result)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/challenge-332/sgreen/python/test.py b/challenge-332/sgreen/python/test.py
new file mode 100755
index 0000000000..3e0d5e5c53
--- /dev/null
+++ b/challenge-332/sgreen/python/test.py
@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+
+import unittest
+ch_1 = __import__('ch-1')
+ch_2 = __import__('ch-2')
+
+
+class TestClass(unittest.TestCase):
+    def test_ch_1(self):
+        self.assertEqual(
+            ch_1.binary_date('2025-07-26'),
+            '11111101001-111-11010'
+        )
+        self.assertEqual(
+            ch_1.binary_date('2000-02-02'),
+            '11111010000-10-10'
+        )
+        self.assertEqual(
+            ch_1.binary_date('2024-12-31'),
+            '11111101000-1100-11111'
+        )
+
+    def test_ch_2(self):
+        self.assertFalse(ch_2.odd_letters('weekly'))
+        self.assertTrue(ch_2.odd_letters('perl'))
+        self.assertFalse(ch_2.odd_letters('challenge'))
+
+
+if __name__ == '__main__':
+    unittest.main()