problem

 solution:

class Solution {public:    void reverseString(vector
     
      & s) {        vector
      
        temp(s.size(), '0');        for(int i=s.size()-1; i>=0; i--)        {            temp[i] = s[s.size()-i-1];        }        for(int i=0; i
      
     

 

 solution2:

class Solution {public:    void reverseString(vector
     
      & s) {        int left = 0, right = s.size()-1;        while(left
     

 

 

 

参考

1. ;

完