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".
题目大意:
编写函数输入一个字符串,将其中的元音字母逆置。
解题方法:
注意事项:
C++代码:
class Solution {
public:
string reverseVowels(string s) {
int left=;
int right=s.size()-;
string t="aeiouAEIOU";
while(left<right)
{
if(t.find(s[left])==string::npos)
{
++left;
}
else if(t.find(s[right])==string::npos)
{
--right;
}
else
{
swap(s[left++],s[right--]);
}
}
return s;
}
};