Leetcode #345 Reverse vowels of a String

https://leetcode.com/problems/reverse-vowels-of-a-string/

Write a function that takes a string as input and reverse only the vowels of a string.

Example 1:
Given s = "Hello", Return "Holle".

Example 2:
Given s = "Leetcode", Return "Leotcede".

Note:
The vowels does not include the letter "Y".

Maintain the first two pointers I and J, each cycle if s[i] and s[j] are vowel only exchange, otherwise which is not vowel, let i++ or j--, until the I==J traversal completed, Time complexity O (N)

It is important to note that in Python, str is not directly interchangeable with elements, so it needs to be converted to a list and then join to an empty string to return

Class solution (Object):    def reversevowels (self, s):        res = list (s)        vowels = [' a ', ' e ', ' I ', ' o ', ' u ']        i = 0 ; j = Len (s)-1 while        i < j:            if Res[i].lower () No in vowels:                i + = 1            elif res[j].lower () not in vowels:< C8/>j-= 1            else:                res[i],res[j] = res[j],res[i]                i + = 1 J-                = 1        return "". Join (RES)

Check if it is vowel can create a list of vowel, and then see if in can, no longer define a function to judge vowel

Leetcode #345 Reverse vowels of a String