Description : This method returns an iterator pointing to the last element in the set.
Example :
#include <bits/stdc++.h>
using namespace std;
int main()
{
int arr[] = { 14, 12, 15, 11, 10 };
// initializes the set from an array
set<int> s(arr, arr + 5);
set<int>::reverse_iterator rit;
// prints all elements in reverse order
std::cout << *(s.rbegin()) <<std::endl;
return 0;
}