344. Reverse String c++

Reverse string c++

#include <iostream>
#include<string>
#include<algorithm>
using namespace std;
int main()
{
string str;
  getline(cin,str);
  reverse(str.begin(),str.end());
  cout<<str;
}

344. Reverse String c++

class Solution {
public:
    void reverseString(vector<char>& s) {
        int i=0;
        int j=s.size()-1;
        while(i<j)
        {
            swap(s[i],s[j]);
            i++;
            j--;
        }
    }
};

//Runtime: 20 ms, faster than 76.31% of C++ online submissions for Reverse String.
//Memory Usage: 23.3 MB, less than 38.31% of C++ online submissions for Reverse String.

Source: codejudge.blogspot.com

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