how to reverse a string in c 2b 2b using reverse function

1#include <iostream>
2//The library below must be included for the reverse function to work
3#include<bits/stdc++.h> 
4using namespace std;
5
6int main() {
7  
8  string greeting = "Hello";
9  //Note that it takes the iterators to the start and end of the string as arguments
10  reverse(greeting.begin(),greeting.end());
11  cout<<greeting<<endl;
12}