Description : The list::crbegin() is a built-in function in c++ STL that returns a constant reverse iterator which points to the last element of the list i.e reversed beginning of container.
Example:
// declaration of the list
std::list<int> lis = { 109, 207, 305, 403, 501 };
// prints the last element
std::cout << "The last element is: " << *lis.crbegin();
std::cout << "\nList: ";
for (auto it = lis.crbegin(); it != lis.crend(); ++it)
std::cout << *it << " ";