how to get last element of set in c++

To get the last element of a set in C++, you can use the rbegin() function along with the dereferencing operator *. Here are the steps to do it:

  1. Create a set: Start by creating a set variable and populating it with elements. Sets in C++ are containers that store unique elements in a specific order.

  2. Access the last element: To access the last element of the set, use the rbegin() function, which returns a reverse iterator pointing to the last element. Then, use the dereference operator * to obtain the actual value of the element.

Here's an example code snippet that demonstrates how to get the last element of a set in C++:

#include <iostream>
#include <set>

int main() {
    std::set<int> mySet = {1, 2, 3, 4, 5};

    // Access the last element
    int lastElement = *mySet.rbegin();

    std::cout << "Last element: " << lastElement << std::endl;

    return 0;
}

In this example, the set mySet is created and populated with integers. The rbegin() function returns a reverse iterator pointing to the last element, and the dereference operator * is used to obtain the value of the last element. Finally, the last element is printed using std::cout.

When you run this code, the output will be:

Last element: 5

This indicates that the last element of the set is 5.