2 files changed, 92 insertions, 0 deletions
diff --git a/challenge-194/vamsi-meenavilli/python/ch-1.py b/challenge-194/vamsi-meenavilli/python/ch-1.py
new file mode 100644
index 0000000000..7de3d3752b
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+++ b/challenge-194/vamsi-meenavilli/python/ch-1.py
@@ -0,0 +1,51 @@
+import re
+import unittest
+
+"""
+ Week 194:
+
+    https://theweeklychallenge.org/blog/perl-weekly-challenge-194
+
+    Task 1: Digital Clock
+    Submitted by: Mohammad S Anwar
+    You are given time in the format hh:mm with one missing digit.
+    
+    Write a script to find the highest digit between 0-9 that makes it valid time.
+"""
+
+
+class DigitalClock:
+    @staticmethod
+    def digital_clock(time: str) -> int:
+        missing_character_index = re.search("\\?", time).start()
+        time = re.sub("\\?", "9", time)
+
+        if missing_character_index < 3:
+            hours = list(map(int, time.split(":")[0]))
+
+            while int(''.join(map(str, hours))) > 23:
+                hours[missing_character_index] -= 1
+
+            return hours[missing_character_index]
+        else:
+            missing_character_index -= 3
+            minutes = list(map(int, time.split(":")[1]))
+
+            while int(''.join(map(str, minutes))) > 59:
+                minutes[missing_character_index] -= 1
+
+            return minutes[missing_character_index]
+
+
+class DigitalClockTestCases(unittest.TestCase):
+    def test_digital_clock(self):
+        self.assertEqual(1, DigitalClock.digital_clock("?5:00"), 'Test case 1 Failed.')
+        self.assertEqual(2, DigitalClock.digital_clock("?3:00"), 'Test case 2 Failed.')
+        self.assertEqual(9, DigitalClock.digital_clock("1?:00"), 'Test case 3 Failed.')
+        self.assertEqual(3, DigitalClock.digital_clock("2?:00"), 'Test case 4 Failed.')
+        self.assertEqual(5, DigitalClock.digital_clock("12:?5"), 'Test case 5 Failed.')
+        self.assertEqual(9, DigitalClock.digital_clock("12:5?"), 'Test case 6 Failed.')
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/challenge-194/vamsi-meenavilli/python/ch-2.py b/challenge-194/vamsi-meenavilli/python/ch-2.py
new file mode 100644
index 0000000000..d318dc3e51
--- /dev/null
+++ b/challenge-194/vamsi-meenavilli/python/ch-2.py
@@ -0,0 +1,41 @@
+import re
+import unittest
+
+"""
+ Week 194:
+
+    https://theweeklychallenge.org/blog/perl-weekly-challenge-194
+
+    Task 2: Frequency Equalizer
+    Submitted by: Mohammad S Anwar
+    You are given a string made of alphabetic characters only, a-z.
+    
+    Write a script to determine whether removing only one character can make the frequency of the remaining characters the same.
+"""
+
+
+class FrequencyEqualizer:
+    @staticmethod
+    def frequency_equalizer(string: str) -> bool:
+        character_frequency_map = dict()
+
+        for character in string:
+            if character in character_frequency_map:
+                character_frequency_map[character] += 1
+            else:
+                character_frequency_map[character] = 1
+
+        unique_frequencies = list(set(character_frequency_map.values()))
+
+        return True if len(unique_frequencies) == 2 and abs(unique_frequencies[0] - unique_frequencies[1]) == 1 else False
+
+
+class FrequencyEqualizerTestCases(unittest.TestCase):
+    def test_digital_clock(self):
+        self.assertTrue(FrequencyEqualizer.frequency_equalizer("abbc"), 'Test case 1 Failed.')
+        self.assertTrue(FrequencyEqualizer.frequency_equalizer("xyzyyxz"), 'Test case 2 Failed.')
+        self.assertFalse(FrequencyEqualizer.frequency_equalizer("xzxz"), 'Test case 3 Failed.')
+
+
+if __name__ == '__main__':
+    unittest.main()