Function main

Lab_06/Source.cpp:207–481

////////////////////////////////***STARTING POINT***////////////////////////////////////////////////////

/////////////////////////////////////***STARTING POINT***////////////////////////////////////////////////////
int main()
{
	system("color 3E");
	int numberforoperation = 0;
	double radius1;
	double sideA, sideB;
	double sidetriangleA, sidetriangleB, sidetriangleC;
	float sidesquare;
	double n1, n2, n3;

	for (int l = 0; l < 120; l++)
	{
		cout << "=";
	}
	cout << endl;
	cout << "\t\t\t\t\tHello! Welcome to the main menu.\n";
	cout << "\t\t   WARNING!!! Enter only numbers!!! And the 'y/n' when you will be asked!\n";
	for (int l = 0; l < 120; l++)
	{
		cout << "=";
	}
	cout << endl;
	cout << "\t[1] Area of Geometrical Figures.\n";
	cout << "\t[2] Circumference of geometrical figures.\n";
	cout << "\t[3] Find the largest number.\n";
	cout << "\t[4] finding the largest number with function template.\n";
	cout << "\t[5] EXIT\n";
	cout << endl;
b:
	cout << " Please enter the number of operation you would like to execute:  ";
	cin >> numberforoperation;
	if (numberforoperation > 0 && numberforoperation < 6)
	{
		system("cls");
		switch (numberforoperation)
		{
		case 1: // first11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
			first();
			int firstfirst;
		f:
			cout << " Choose one figure: ";
			cin >> firstfirst;
			if (firstfirst > 0 && firstfirst < 6)
			{
				system("cls");		// ends the main menu
				switch (firstfirst) // firstfirst
				{
					system("cls"); // ends the main menu
				case 1:
					cout << "\t\t\t\t***CIRCLE***\n";
				a:
					cout << "Enter the radius of the circle: ";
					cin >> radius1;
					if (radius1 > 0)
					{
						area(radius1);
						first();
						goto f;