原题链接
思路:双指针
class Solution {
public void reverseString(char[] s) {
if(s == null) return;
for(int i = 0, j = s.length - 1;i < j;i++,j--){
char tmp = s[i];
s[i] = s[j];
s[j] = tmp;
}
}
}
原题链接
思路:双指针
class Solution {
public void reverseString(char[] s) {
if(s == null) return;
for(int i = 0, j = s.length - 1;i < j;i++,j--){
char tmp = s[i];
s[i] = s[j];
s[j] = tmp;
}
}
}