// Exercise 3.38 Solution// Randomly generate numbers between 1 and 1000 for user to guess.#include <iostream>using std::cin; using std::cout;using std::endl;#include <cstdlib>using std::rand;#include <ctime>void guessGame(); // function prototypebool isCorrect( int, int ); // function prototypeint main(){   // srand( time( 0 ) ); // seed random number generator   guessGame();   return 0; // indicate successful termination} // end main// guessGame generates numbers between 1 and 1000// and checks user's guessvoid guessGame(){   int answer; // randomly generated number   int guess; // user's guess   char response; // 'y' or 'n' response to continue game   // loop until user types 'n' to quit game   do {      // generate random number between 1 and 1000      // 1 is shift, 1000 is scaling factor      answer = 1 + rand() % 1000;      // prompt for guess      cout << "I have a number between 1 and 1000.\n"            << "Can you guess my number?\n"            << "Please type your first guess." << endl << "? ";      cin >> guess;      // loop until correct number      while ( !isCorrect( guess, answer ) )          cin >> guess;            // prompt for another game      cout << "\nExcellent! You guessed the number!\n"           << "Would you like to play again (y or n)? ";      cin >> response;      cout << endl;   } while ( response == 'y' );} // end function guessGame// isCorrect returns true if g equals a// if g does not equal a, displays hintbool isCorrect( int g, int a ){   // guess is correct   if ( g == a )      return true;   // guess is incorrect; display hint   if ( g < a )      cout << "Too low. Try again.\n? ";   else      cout << "Too high. Try again.\n? ";   return false;} // end function isCorrect/************************************************************************** * (C) Copyright 1992-2009 by Deitel & Associates, Inc. and               * * Pearson Education, Inc. All Rights Reserved.                           * *                                                                        * * DISCLAIMER: The authors and publisher of this book have used their     * * best efforts in preparing the book. These efforts include the          * * development, research, and testing of the theories and programs        * * to determine their effectiveness. The authors and publisher make       * * no warranty of any kind, expressed or implied, with regard to these    * * programs or to the documentation contained in these books. The authors * * and publisher shall not be liable in any event for incidental or       * * consequential damages in connection with, or arising out of, the       * * furnishing, performance, or use of these programs.                     * **************************************************************************/