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345-reverse-vowels-of-a-string.md

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345. Reverse Vowels of a String - 反转字符串中的元音字母

编写一个函数,以字符串作为输入,反转该字符串中的元音字母。

示例 1:

输入: "hello"
输出: "holle"

示例 2:

输入: "leetcode"
输出: "leotcede"

说明:
元音字母不包含字母"y"。


题目标签:Two Pointers / String

题目链接:LeetCode / LeetCode中国

题解

将字符串转为字符数组:list(s),不必[c for c in s]

Language Runtime Memory
python3 96 ms N/A
class Solution:
    def reverseVowels(self, s):
        """
        :type s: str
        :rtype: str
        """
        ss = [c for c in s]
        tmp = []
        for i, c in enumerate(ss):
            if c.lower() in 'aeiou':
                tmp.append((i, c))
        for ii, (i, c) in enumerate(tmp):
            ss[i] = tmp[-1 * ii -1][1]
        return ''.join(ss)