1、问题描述
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 = "lee...
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".
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