Пожалуйста очень срочно нужно написать программу, определяющую полезность веб-страниц.

#include <iostream>
#include <istream>
#include <ostream>
#include <fstream>
#include <string>
#include <boost/asio.hpp>
using boost::asio::ip::tcp;
 
int main(int argc, char* argv[]){
  try{
      //std::cout << "  sync_client [url]www.boost.org[/url] /LICENSE_1_0.txt\n";
    std::string host="www.boost.org";
    std::string get="/doc/libs/1_46_1/doc/html/boost_asio/example/http/client/sync_client.cpp";
 
    boost::asio::io_service io_service;
 
    // Get a list of endpoints corresponding to the server name.
    tcp::resolver resolver(io_service);
    tcp::resolver::query query(host, "http");
    tcp::resolver::iterator endpoint_iterator = resolver.resolve(query);
    tcp::resolver::iterator end;
 
    // Try each endpoint until we successfully establish a connection.
    tcp::socket socket(io_service);
    boost::system::error_code error = boost::asio::error::host_not_found;
    while (error && endpoint_iterator != end){
      socket.close();
      socket.connect(*endpoint_iterator++, error);
    }
    if (error)
      throw boost::system::system_error(error);
 
    // Form the request. We specify the "Connection: close" header so that the
    // server will close the socket after transmitting the response. This will
    // allow us to treat all data up until the EOF as the content.
    boost::asio::streambuf request;
    std::ostream request_stream(&request);
    request_stream << "GET " << get << " HTTP/1.0\r\n";
    request_stream << "Host: " << host << "\r\n";
    request_stream << "Accept: */*\r\n";
    request_stream << "Connection: close\r\n\r\n";
 
    // Send the request.
    boost::asio::write(socket, request);
 
    // Read the response status line. The response streambuf will automatically
    // grow to accommodate the entire line. The growth may be limited by passing
    // a maximum size to the streambuf constructor.
    boost::asio::streambuf response;
    boost::asio::read_until(socket, response, "\r\n");
 
    // Check that response is OK.
    std::istream response_stream(&response);
    std::string http_version;
    response_stream >> http_version;
    unsigned int status_code;
    response_stream >> status_code;
    std::string status_message;
    std::getline(response_stream, status_message);
    if (!response_stream || http_version.substr(0, 5) != "HTTP/"){
      std::cout << "Invalid response\n";
      return 1;
    }
    if (status_code != 200){
      std::cout << "Response returned with status code " << status_code << "\n";
      return 1;
    }
 
    // Read the response headers, which are terminated by a blank line.
    boost::asio::read_until(socket, response, "\r\n\r\n");
    std::ofstream ofs("1.html");
 
    // Read until EOF, writing data to output as we go.
    while (boost::asio::read(socket, response,
                             boost::asio::transfer_at_least(1), error)){
        ofs << &response;
    }
    ofs.close();
    if (error != boost::asio::error::eof)
      throw boost::system::system_error(error);
  }
  catch (std::exception& e){
    std::cout << "Exception: " << e.what() << "\n";
  }
 
  return 0;
}