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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".
题目要求：将一个字符串中的元音字母前后调换，设置两个位置，如果两个位置的都是元音字母就调换即可
class Solution { public: string reverseVowels(string s) { char temp = ‘ ‘; string Vowels("aAeEiIoOuU"); int start = 0, end = s.size() - 1; while (start<end) { if (Vowels.find(s[start]) != string::npos&&Vowels.find(s[end]) != string::npos) { temp = s[start]; s[start] = s[end]; s[end] = temp; ++start; --end; }else { if (Vowels.find(s[start]) == string::npos && Vowels.find(s[end]) == string::npos) { ++start; --end; continue; } if (Vowels.find(s[start] == string::npos) && Vowels.find(s[end]) != string::npos) { ++start; } else { --end; } } } return s; } };
LeetCode 345. Reverse Vowels of a String
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原文地址：http://www.cnblogs.com/csudanli/p/5890771.html
