Function question1

Project_Quiz_Game/quiz-game.cpp:82–124

questions

}
//questions
void question1() {
	cout << "                                                                                     ***********************************" << endl;
	cout << "                                                                                     *****      TOTAL SCORE:" << total_score << "      *****" << endl;
	cout << "                                                                                     ***********************************" << endl; 
	cout << "\t\t\t\t\t  Q U E S T I O N  No. 1"<< endl;
		cout << "What is the correct value to return to the operating system upon the successful completion of a program?" << endl;
		cout << "[1] -1"<<endl;
		cout << "[2]  1" << endl;
		cout << "[3]  0" << endl;
		cout << "[4] Programs do not return a value" << endl;
		string answer;
		cout << endl;
    	cout << "\t\t\t\t\tENTER YOUR CHOICE: ";
		cin >> answer;
		//limiting the answers of the user
		if (answer == "1" || answer == "2" || answer == "3" || answer == "4")
		{
			if (answer == "3")
			{
				total_score += 10;
				correct_answer += 1;
				cout << "C O R R E C T   A N S W E R !!!" << endl;
				cout << "You got 10 points out of 10." << endl;
			}
			else if (answer == "1" || answer == "2" || answer == "4")
			{
				cout << "W R O N G  A N S W E R !!!" << endl;
				cout << "You got 0 points out of 10." << endl;
			}
			cout << endl;
			system("pause");
			system("cls");
		}
		else 
		{
			system("cls");
			cout << "\t\t*************************************************************************************" << endl;
			cout << "\t\t****           P L E A S E  I N P U T  C O R R E C T  V A L U E !                ****" << endl;
			cout << "\t\t*************************************************************************************" << endl;
			cout << endl;
			question1();
		}
}
void question2() {
	cout << "                                                                                     ***********************************" << endl;
	cout << "                                                                                     *****      TOTAL SCORE:" << total_score << "     *****" << endl;