0344-reverse-string.cpp

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