#include <iostream>
#include <string>
#include <vector>
using namespace std;


void display_size_capacity(const vector<string> & v)
//post: displays the size and capacity of a vector
{
	cout << "size is " << v.size() << " and the capacity is " << v.capacity() << endl;
}


void print (const vector<string> & v)
{
	int i;

    for (i=0; i < v.size(); i++)
	{
		cout << v[i] << endl;
	}
}

int main()
{
	vector<string> words;    
	cout << "created an empty vector: ";
	display_size_capacity(words);

//	vector<string> words(5);  //also try with having a non-empty string as an initial value
//	cout << "created a vector with 5 elements: ";
//	display_size_capacity(words);

//	words.reserve(5);
//	cout << "reserved 5 words: ";
//	display_size_capacity(words);

	string str;

	while (cin >> str)	
	{
		words.push_back(str);
		cout << "added " << str << ": ";
	    display_size_capacity(words);
	}

	/*
	//pop_back example
	int currentSize = words.size();
	for (int i=0; i < currentSize; i++)
	{
		words.pop_back();
		display_size_capacity(words);
	}
	*/

	print (words);

    display_size_capacity(words);
	return 0;
}