[Leetcode string C++] 344. Reverse String

344. Reverse String

class Solution {
    
    
public:
    void reverseString(vector<char>& s) {
    
    
        int len = s.size();
        for(int ii = 0; ii < len/2; ii++) {
    
    
            int temp = s[ii];
            s[ii] = s[len-1-ii];
            s[len-1-ii] = temp;
        }
    }
};