［抄题］: 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". [暴力解法]:抽出来再放回去:不现实 时间分析: 空…

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". 这道题让我们翻转字符串中的元音字母,元音字母有五个a,e,i,o…

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:给定 s = "hello", 返回 "holle".示例 2:给定 s = "leetcode", 返回 "leotcede".注意:元音字母不包括 "y".详见:https://leetcode.com/problems/reverse-vowels-of-a-string/description/ C++: class Solutio…

Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". Update (2015-02-12): For C programmers: Try to solve it in-place in O(1) space. click to show clarification. Cl…

Given an input string, reverse the string word by word. For example,Given s = "the sky is blue",return "blue is sky the". Update (2015-02-12):For C programmers: Try to solve it in-place in O(1) space. Clarification: What constitutes a…

Given an input string, reverse the string word by word. For example,Given s = "the sky is blue",return "blue is sky the". Have you met this question in a real interview? Yes Clarification What constitutes a word?A sequence of non-space…

Question 345. Reverse Vowels of a String Solution 思路:交换元音,第一次遍历,先把出现元音的索引位置记录下来,第二遍遍历元音的索引并替换. Java实现: public String reverseVowels(String s) { List<Integer> store = new ArrayList<>(); char[] arr = s.toCharArray(); for (int i=0; i< arr.lengt…

题意:倒置字符串中的元音字母. 用两个下标分别指向前后两个相对的元音字母,然后交换. 注意:元音字母是aeiouAEIOU. class Solution { public: bool isVowels(char c){ string Vowels = "aeiouAEIOU"; ; i < Vowels.size(); ++i){ if(c == Vowels[i]) return true; } return false; } string reverseVowels(str…

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"…

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