www.gusucode.com > C++ Primer 书籍源代码源码程序 > C++ Primer 书籍源代码源码程序/code/11/elim-dups.cpp
//Download by http://www.NewXing.com /* * This file contains code from "C++ Primer, Fourth Edition", by Stanley B. * Lippman, Jose Lajoie, and Barbara E. Moo, and is covered under the * copyright and warranty notices given in that book: * * "Copyright (c) 2005 by Objectwrite, Inc., Jose Lajoie, and Barbara E. Moo." * * * "The authors and publisher have taken care in the preparation of this book, * but make no expressed or implied warranty of any kind and assume no * responsibility for errors or omissions. No liability is assumed for * incidental or consequential damages in connection with or arising out of the * use of the information or programs contained herein." * * Permission is granted for this code to be used for educational purposes in * association with the book, given proper citation if and when posted or * reproduced.Any commercial use of this code requires the explicit written * permission of the publisher, Addison-Wesley Professional, a division of * Pearson Education, Inc. Send your request for permission, stating clearly * what code you would like to use, and in what specific way, to the following * address: * * Pearson Education, Inc. * Rights and Contracts Department * 75 Arlington Street, Suite 300 * Boston, MA 02216 * Fax: (617) 848-7047 */ #include "algs_preamble.h" #include <fstream> using std::ifstream; #include <cstddef> using std::size_t; int main() { vector<string> words; // copy contents of each book into a single vector string next_word; while (cin >> next_word) { // insert next book's contents at end of words words.push_back(next_word); } // sort words alphabetically so we can find the duplicates sort(words.begin(), words.end()); // print contents to see how things look at this point for(vector<string>::iterator it = words.begin(); it != words.end(); ++it) cout << *it << " "; cout << endl; vector<string>::iterator end_unique = unique(words.begin(), words.end()); // print contents to see how things look at this point for(vector<string>::iterator it = words.begin(); it != words.end(); ++it) cout << *it << " "; cout << endl; words.erase(end_unique, words.end()); // print contents to see how things look at this point for(vector<string>::iterator it = words.begin(); it != words.end(); ++it) cout << *it << " "; cout << endl; return 0; }