#include <iostream.h> #include <stl.h> int main () { vector<int> v (4); v[0] = 1; v[1] = 4; v[2] = 9; v[3] = 16; cout << "front = " << v.front () << endl; cout << "back = " << v.back () << ", size = " << v.size () << endl; v.push_back (25); cout << "back = " << v.back () << ", size = " << v.size () << endl; v.pop_back (); cout << "back = " << v.back () << ", size = " << v.size () << endl; return 0; }