Write a program that plays the game of “guess the number” as follows: Your program chooses the number to be guessed by selecting an integer at random in the range 1 to 1000. The program then displays the following:

Question

I have a number between 1 and 1000.
Can you guess my number?
Please type your first guess.
The player then types a first guess. The program responds with one of the following:
1. Excellent! You guessed the number!
Would you like to play again (y or n)?
2. Too low. Try again.
3. Too high. Try again.
If the player’s guess is incorrect, your program should loop until the player finally gets the number right. Your program should keep telling the player Too high or Too low to help the player “zero in” on the correct answer.

Answer 1

```
// Randomly generate numbers between 1 and 1000 for user to guess.
#include
#include
#include
using namespace std;

void guessGame(); // function prototype
bool isCorrect( int, int ); // function prototype

int main()
{
srand( time( 0 ) ); // seed random number generator
guessGame();
} // end main

// guessGame generates numbers between 1 and 1000 and checks user's guess
void 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 hint
bool 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
```
I have a number between 1 and 1000.
Can you guess my number?
Please type your first guess.
? 500
Too high. Try again.
? 250
Too low. Try again.
? 375
Too low. Try again.
? 438
Too high. Try again.
? 405
Too high. Try again.
? 380
Too low. Try again.
? 393
Too low. Try again.
? 399
Too high. Try again.
? 396
Too low. Try again.
? 398
Too high. Try again.
? 397
Excellent! You guessed the number!
Would you like to play again (y or n)? n