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25 lines
759 B
Markdown
25 lines
759 B
Markdown
# [345. Reverse Vowels of a String](https://leetcode.com/problems/reverse-vowels-of-a-string/description/)
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# 思路
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翻转字符串中的元音字母，即A、E、I、O、U、a、e、i、o、u。常规题
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# C++
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```C++
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class Solution {
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private:
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bool isVowel(char c){
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if('A' <= c && c <= 'Z') c = c - 'A' + 'a';
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if(c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u') return true;
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return false;
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}
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public:
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string reverseVowels(string s) {
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int low = 0, high = s.size() - 1;
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while(low < high){
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while(low < high && !isVowel(s[low])) low++;
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while(low < high && !isVowel(s[high])) high--;
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if(low < high) swap(s[low++], s[high--]);
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}
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return s;
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}
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};
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```
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