Read keyboard input to a set directly : set « set multiset « C++ Tutorial

1. C++ Tutorial
2. set multiset
3. set

/* The following code example is taken from the book
 * "The C++ Standard Library - A Tutorial and Reference"
 * by Nicolai M. Josuttis, Addison-Wesley, 1999
 *
 * (C) Copyright Nicolai M. Josuttis 1999.
 * Permission to copy, use, modify, sell and distribute this software
 * is granted provided this copyright notice appears in all copies.
 * This software is provided "as is" without express or implied
 * warranty, and with no claim as to its suitability for any purpose.
 */
#include <iostream>
#include <string>
#include <algorithm>
#include <iterator>
#include <set>
using namespace std;

int main()
{
    /* create a string set
     * - initialized by all words from standard input
     */
    set<string> coll((istream_iterator<string>(cin)),
                     istream_iterator<string>());

    // print all elements
    copy (coll.begin(), coll.end(),
          ostream_iterator<string>(cout, "\n"));
}

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