int main()
{
std::cout << "Max elements that can be inserted into a vector having elements of size '" << sizeof( int )
<< "' is: " << std::vector<int>().max_size() << std::endl;
std::cout << "Max elements that can be inserted into a vector having elements of size '" << sizeof( std::vector<int> )
<< "' is: " << std::vector<std::vector<int> >().max_size() << std::endl;
}