Given a string s
, reverse only all the vowels in the string and return it.
The vowels are 'a'
, 'e'
, 'i'
, 'o'
, and 'u'
, and they can appear in both cases.
Example 1:
Input: s = "hello"
Output: "holle"
Example 2:
Input: s = "leetcode"
Output: "leotcede"
Constraints:
- 1 <= s.length <= 3 * 105
s consist of printable ASCII characters
.