unsigned int dvisionGenerator() {
        int num1, num2;
        srand(static_cast<int>(time(0)));
        num1 = rand() % 19 + 1;
        num2 = rand() % 9 + 1;
        while (num1% num2 != 0) {
            num1 = rand() % 9 + 1;
        }
        cout << "How much is " << num1 << " divided by " << num2 << "?" << endl;
        return num1 / num2;
    }

   unsigned int subractionGenerator() {
        int num1, num2;
        srand(static_cast<int>(time(0)));
        num1 = rand() % 9 + 1;
        num2 = rand() % 9 + 1;
        while (num1 < num2) {
            num1 = rand() % 9 + 1;
        }
        cout << "How much is " << num1 << " mius " << num2 << " ?" << endl;
        return num1 - num2;
    }
    int additionGenerator() {
        int num1, num2;
        srand(static_cast<int>(time(0)));
        num1 = rand() % 9 + 1;
        num2 = rand() % 9 + 1;
        cout << "How much is " << num1 << " plus " << num2 << " ?" << endl;
        return num1 + num2;
    }
    int multiplicationGenerator1() {
        int num1, num2;
        srand(static_cast<int>(time(0)));
        num1 = rand() % 9 + 1;
        num2 = rand() % 9 + 1;
        cout << "How much is " << num1 << " times " << num2 << " ?" << endl;
        return num1 * num2;
    }
    int multiplicationGenerator2() {
        int num1, num2;
        srand(static_cast<int>(time(0)));
        num1 = rand() % 19 + 1;
        num2 = rand() % 9 + 1;
        cout << "How much is " << num1 << " times " << num2 << " ?" << endl;
        return num1 * num2;
    }

    void multiplicationAssistLevel2() {
        int answer, product, response;
        int countC = 0, countW = 0;
        int totalPoints = 0;

        while (totalPoints < 10) {
            product = multiplicationGenerator2();
            cin >> answer;

            while (product != answer) {
                countW++;
                response = rand() % 4 + 1;
                switch (response) {
                case 1:
                    cout << "No. Please try again." << endl;
                    break;
                case 2:
                    cout << "Wrong.Try once more." << endl;
                    break;
                case 3:
                    cout << "Don't give up!" << endl;
                    break;
                case 4:
                    cout << "No. Keep trying." << endl;
                    break;
                }

                if (countW + countC > 9) {
                    break;
                }
                else {
                    cin >> answer;
                }
            }

            if (answer == product) {
                countC++;
                response = rand() % 4 + 1;
                switch (response) {
                case 1:
                    cout << "Very good!" << endl;
                    break;
                case 2:
                    cout << "Excellent!" << endl;
                    break;
                case 3:
                    cout << "Nice work!" << endl;
                    break;
                case 4:
                    cout << "Keep up the good work!" << endl;
                    break;
                }
            }

            totalPoints = countW + countC;
        }
        cout << "Correct answers " << countC << " Wrong answers " << countW << endl;
        if (countC >= 8) {
            cout << "Congratulations, you are ready to go to the next level! " << endl;
        }
        else if (countW >= 2) {
            cout << "Please ask your teacher for extra help." << endl;
        }
    }
    void wrongAnswer() {
        int response;
        response = rand() % 4 + 1;
        switch (response) {
        case 1:
            cout << "No. Please try again." << endl;
            break;
        case 2:
            cout << "Wrong.Try once more." << endl;
            break;
        case 3:
            cout << "Don't give up!" << endl;
            break;
        case 4:
            cout << "No. Keep trying." << endl;
            break;
        }
    }
    void correctAnswer() {
        int response;
        response = rand() % 4 + 1;
        switch (response) {
        case 1:
            cout << "Very good!" << endl;
            break;
        case 2:
            cout << "Excellent!" << endl;
            break;
        case 3:
            cout << "Nice work!" << endl;
            break;
        case 4:
            cout << "Keep up the good work!" << endl;
            break;
        }
    }
    void multiplicationAssistLevel1() {
        int answer, product;
        int countC = 0, countW = 0;
        int totalPoints = 0;

        while (totalPoints < 10) {
            product = multiplicationGenerator1();
            cin >> answer;

            while (product != answer) {
                countW++;
                wrongAnswer();
                if (countW + countC > 9) {
                    break;
                }
                else
                {
                    cin >> answer;
                }
            }

            if (answer == product) {
                countC++;
                correctAnswer();
            }

            totalPoints = countW + countC;
        }
            cout << "Correct answers " << countC << ", Wrong answers " << countW << endl;
            if (countC >= 8) {
                cout << "Congratulations, you are ready to go to the next level! " << endl;
                multiplicationAssistLevel2();
            }
            else if (countW >= 2) {
                cout << "Please ask your teacher for extra help." << endl;
            }
        }

    void additionAssist() {
        int answer, total;
        int countC = 0, countW = 0;
        int totalPoints = 0;

        while (totalPoints < 10) {
            total = additionGenerator();
            cin >> answer;

            while (total != answer) {
                countW++;
                wrongAnswer();
                if (countW + countC > 9) {
                    break;
                }
                else
                {
                    cin >> answer;
                }
            }

            if (answer == total) {
                countC++;
                correctAnswer();
            }

            totalPoints = countW + countC;
        }
        cout << "Correct answers " << countC << ", Wrong answers " << countW << endl;
    }


    void subractionAssist() {
        unsigned int answer, total;
        int countC = 0, countW = 0;
        int totalPoints = 0;

        while (totalPoints < 10) {
            total = subractionGenerator();
            cin >> answer;

            while (total != answer) {
                countW++;
                wrongAnswer();
                if (countW + countC > 9)
                {
                    break;
                }
                else
                {
                 cin >> answer;
                }
            }
            if (answer == total)
            {
                countC++;
                correctAnswer();
            }
            totalPoints = countW + countC;
        }
        cout << "Correct answers " << countC << ", Wrong answers " << countW << endl;
    }

    void divisionAssist() {
        unsigned int answer, total;
        int countC = 0, countW = 0;
        int totalPoints = 0;

        while (totalPoints < 10) {
            total = dvisionGenerator();
            cin >> answer;

            while (total != answer) {
                countW++;
                wrongAnswer();
                if (countW + countC > 9) {
                    break;
                }
                else
                {
                    cin >> answer;
                }
            }
            if (answer == total) {
                countC++;
                correctAnswer();
            }
            totalPoints = countW + countC;
        }
        cout << "Correct answers " << countC << ", Wrong answers " << countW << endl;
    }
    int main() {

        int choice;
        char x = 'y';
        while (x == 'y') {
            cout << "Please enter a choice: \n'1' for addition  \n'2' for subraction \n'3' for multiplication \n'4' for division \n'5' for a random choice  " << endl;
            cin >> choice;
            if (choice == 5) {
                choice = rand() % 4 + 1;
            }
            switch (choice)
            {
            case 1:
                cout << "Addition quiz:" << endl;
                additionAssist();
                break;
            case 2:
                cout << "Subtraction quiz:" << endl;
                subractionAssist();
                break;
            case 3:
                cout << "Multiplication quiz: " << endl;
                multiplicationAssistLevel1();
                break;
            case 4:
                cout << "Division quiz" << endl;
                divisionAssist();
                break;
            }
            cout << "Enter 'y' for another quiz or 'x' to quit" << endl;
            cin >> x;
        }
}