[leetcode]345. Reverse Vowels of a String

345. 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”.

利用正则表达式，找到元音字母放在list中，然后pop()出来替换。简单粗暴不失优美的python代码

class Solution(object):    def reverseVowels(self, s):        """        :type s: str        :rtype: str        """        vowels = re.findall('(?i)[aeiou]', s)        return re.sub('(?i)[aeiou]', lambda m:vowels.pop(), s)