Write a function that takes a string as input and reverse only the vowels of a string.
Example 1:
Input: "hello" Output: "holle"
Example 2:
Input: "leetcode" Output: "leotcede"
Note:
The vowels does not include the letter "y".
Write a function that takes a string as input and reverse only the vowels of a string.
Example 1:
Input: "hello" Output: "holle"
Example 2:
Input: "leetcode" Output: "leotcede"
Note:
The vowels does not include the letter "y".