Creating a number guessing game

  c++

I’m still a newbie, so I’m not sure exactly what I did wrong. I am trying to create a game where a user enters a number to be the maximum number of an interval, then the program asks the user to guess a random number. When I test it out, the user can keep guessing but there is no random number that ends up being correct. Please help!

int main() {
    int num, intervalMax, guess; // Define variables
    srand(time(0)); // Give a "random" seed to the random number generator

    cout << "Let's generate some random numbers in the interval [1, 10]" << endl;
    for (int i = 0; i < 5; i++) {
        num = rand() % 10 + 1;
        cout << "Your random number is " << num << "!" << endl;
    }

    cout << endl;
    cout << "Great, now it's time to play a guessing game." << endl;
    cout << "What should the maximum number we can generate be?" << endl;
    cout << "The wider the interval, the harder the game is." << endl;
    cout << "Please enter a number: ";
    cin >> intervalMax; // ask for the maximum number allowed
    cout << "Cool, the numbers we generate will be in the interval [1, " << intervalMax << "]" << endl;

    cout << "n...generating a new random number...n" << endl;
    for (int i = 0; i < 5; i++) {
           num = rand() % intervalMax + 1;
    
    cout << "Now, you are the player. Time to make a guess. What might the random number be?" << endl;
        
      
        
        //ask for estimate
        
        do
        {
            num = rand() % 20 + 1;
            cout << "Enter your guess: ";
        cin >> guess;
            i++;
            
            
        if (guess>num)
            cout << "Your guess is more than the random number." <<endl;
       else if (guess<num)
           cout << "Your guess is less than the random number"<< endl;
            else if (guess ==num)
                cout << "Your guess is correct." <<endl;
        }
        while (guess !=num);
        
      
    return 0;

}
}

Source: Windows Questions C++

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