//
// This is example code from Chapter 4.6.3 "A text example" of
// "Programming -- Principles and Practice Using C++" by Bjarne Stroustrup
//

#include "../std_lib_facilities.h"

//------------------------------------------------------------------------------

// simple dictionary: list of sorted words:
int main()
{
    vector<string> words; 
    string temp;
    while (cin>>temp)                // read whitespace separated words
        words.push_back(temp);       // put into vector

    cout << "Number of words: " << words.size() << endl;

    sort(words.begin(),words.end()); // sort "from beginning to end"

    for (int i = 0; i< words.size(); ++i) 
        if (i==0 || words[i-1]!=words[i]) // is this a new word?
            cout << words[i] << "\n";
}

//------------------------------------------------------------------------------