#include <iostream.h> #include <stl.h> int main () { vector<int> v1; // Empty vector of integers. cout << "empty = " << v1.empty () << endl; cout << "size = " << v1.size () << endl; cout << "max_size = " << v1.max_size () << endl; v1.push_back (42); // Add an integer to the vector. cout << "size = " << v1.size () << endl; cout << "v1[0] = " << v1[0] << endl; return 0; }