#include <iostream>
#include <vector>
#include <algorithm>
#include <iterator>

using namespace std;

int main () {

  // define an array of six ints
  const int SIZE = 6;
  int array[SIZE] = {1, 2, 3, 4, 5, 6};

  // initalize a vector intVec with the above array
  vector<int> intVec (array, array + SIZE);

  // set up an output iterator, with numbers separated by a " "
  ostream_iterator<int> output (cout, " ");

  // display current vector
  cout << "Vector currently contains: ";
  copy(intVec.begin(), intVec.end(), output);

  // display front and back of vector
  cout << "Front of vector: " << intVec.front() << endl;
  cout << "Back of  vector: " << intVec.back() << endl;

  // add three values to back of vector
  intVec.push_back(7);
  intVec.push_back(8);
  intVec.push_back(9);

  // display statistics about current vector
  cout << "Current size of vector: " << intVec.size() << endl;
  cout << "Current capacity of vector: " << intVec.capacity() << endl;

  // clear and display current vector
  intVec.clear();


}