LeetCode编程练习 - Reverse Vowels of a String学习心得
题目:
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".
Note:
The vowels does not include the letter "y".
编写一个函数,它以字符串作为输入,只返回字符串的元音。元音不包括字母“y”。
示例1: 输入s = "hello",返回" holle "。
示例2: 输入s = "leetcode ",返回" leotcede "。
思路:
元音字母有五个a,e,i,o,u,大写的也算,当首尾指针所遍历的元素均为元音字母的时候进行交换。