一、Java
java
class Solution {
public void reverseString(char[] s) {
for (int l = 0, r = s.length - 1; l < r; l++, r--) {
s[l] ^= s[r];
s[r] ^= s[l];
s[l] ^= s[r];
}
}
}二、C++
cpp
#include <vector>
using namespace std;
class Solution {
public:
void reverseString(vector<char>& s) {
for(int l = 0, r = s.size() - 1; l < r; l++, r--) {
s[l] ^= s[r];
s[r] ^= s[l];
s[l] ^= s[r];
}
}
};三、Python
python
from typing import List
class Solution:
def reverseString(self, s: List[str]) -> None:
l, r = 0, len(s) - 1
while l < r:
s[l], s[r] = s[r], s[l]
l, r = l + 1, r - 1四、JavaScript
javascript
var reverseString = function (s) {
for (let l = 0, r = s.length - 1, t; l < r; l++, r--) {
t = s[l];
s[l] = s[r];
s[r] = t;
}
}五、Go
Go
package main
func reverseString(s []byte) {
l := 0
r := len(s) - 1
for ; l < r; {
s[l], s[r] = s[r], s[l]
l++
r--
}
}