solves reverse vowels in a string in python

Author: anishLearnsToCode

README.md

@@ -95,7 +95,7 @@
 | 339 | 🔒 [Nested List Weight Sum](https://leetcode.com/problems/nested-list-weight-sum) | Easy | |
 | 342 | [Power of Four](https://leetcode.com/problems/power-of-four) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/PowerOf4.java) [![Python](https://img.icons8.com/color/35/000000/python.png)](python/power_of_four.py) |
 | 344 | [Reverse A String](https://leetcode.com/problems/reverse-string) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/ReverseString.java) [![Python](https://img.icons8.com/color/35/000000/python.png)](python/reverse_a_string.py) |
-| 345 | [Reverse Vowels of A String](https://leetcode.com/problems/reverse-vowels-of-a-string) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/ReverseVowelsOfString.java) |
+| 345 | [Reverse Vowels of A String](https://leetcode.com/problems/reverse-vowels-of-a-string) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/ReverseVowelsOfString.java) [![Python](https://img.icons8.com/color/35/000000/python.png)](python/reverse_vowels_of_a_string.py) |
 | 346 | [Moving Average From Data Stream](https://leetcode.com/problems/moving-average-from-data-stream) | Easy | |
 | 349 | [Intersection of 2 Arrays](https://leetcode.com/problems/intersection-of-two-arrays) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/IntersectionOfTwoArrays.java) |
 | 350 | [Intersection of 2 Arrays II](https://leetcode.com/problems/intersection-of-two-arrays-ii) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/IntersectionOfTwoArraysII.java) |

python/reverse_vowels_of_a_string.py

@@ -0,0 +1,34 @@
+import re
+
+
+class Solution:
+    def __init__(self):
+        self.vowels = {'a', 'e', 'i', 'o', 'u', 'A', 'E', 'I', 'O', 'U'}
+
+    def is_vowel(self, character: str) -> bool:
+        return character in self.vowels
+
+    def index_in_range(self, l: iter, index: int) -> bool:
+        return 0 <= index < len(l)
+
+    # 2 pointer approach
+    # def reverseVowels(self, s: str) -> str:
+    #     characters = [character for character in s]
+    #     left, right = 0, len(characters) - 1
+    #     while left < right:
+    #         while left < right and not self.is_vowel(s[left]):
+    #             left += 1
+    #         while left < right and not self.is_vowel(s[right]):
+    #             right -= 1
+    #         if left < right:
+    #             characters[left], characters[right] = characters[right], characters[left]
+    #             left += 1
+    #             right -= 1
+    #     return ''.join(characters)
+
+    # faster method
+    def reverseVowels(self, s):
+        vowels = re.findall('(?i)[aeiou]', s)
+        return re.sub('(?i)[aeiou]', lambda m: vowels.pop(), s)
+
+print(Solution().reverseVowels('aA'))