#include <vector>

#include <iostream>

using namespace std;



void main()

{

	vector<char> v(10,'z');	// create a vector with 10 copies of 'z'

	

	cout << "First element of initial sequence resided at address: " << hex

		  << reinterpret_cast<unsigned long>(v.begin()) << endl;

	cout << "Contents of initial sequence: " << endl;

	for (int i = 0; i < v.size(); i++)

	{	cout << v[i] << " ";	}

	cout << endl;

	

	v.reserve(20);	// expand capacity to 20 elements



	cout << "First element of expanded sequence resides at address: " << hex 

		  << reinterpret_cast<unsigned long>(v.begin()) << endl;

	v.assign(v.capacity(),'a');	// delete contents of v and replace with 20 copies of 'a'

	cout << "Contents of expanded sequence: " << endl;

	for (int j = 0; j < v.size(); j++)

	{	cout << v[j] << " ";	}

	cout << endl;

}