Guys I need help, the exam is coming soon, simple program

[Arturofm]

I'm super stressed out, nothing comes to my mind, I'm trying to refresh doing some simple programs and I can't do them, yesterday I spent like 2 h trying to do this...:

#include <iostream>
using namespace std;

int main()
{
	int i=0, months = 36;
	double fee = 0.03, price=0.0;
	double montly_fee = 1000.0;

	cout << "Welcome to my appartment complex"<<endl;
	cout << "The price of the app. per month is $1000 and I'll increment 3% of interest for 3 years." <<"\n\n";
	
	
	for (i = 1; i <= 3; i++) 
	{
		double compute=0.0, get_money=0.0, total=0.0, x=0.0;
		
		compute = (montly_fee*fee);							//Gives me $30
		get_money = (12 * (compute + montly_fee));			//Calculates a whole year, gives me $12360
		total=get_money*i;
				
		cout << "Year (" << i << ")  $" << total << endl;   //Displays total
	}



	cin.ignore();
	cin.get();
	return 0;
}

So now, I'm trying to do another simple program but nothing comes to my mind, I have 1 week left and the trigonometry final and the c++ final! ahhhg

so I'm trying to do this:

Calculate the purchase of video game sales.

If customer buys more than 3 games, the forth one is free.
Ask how many the user is purchasing.
Ask whether the game is a new release or not.
Then display the total of the purchase

but I can't pass the values to the one another. I know it's a lot to ask, but could you do it please?

I tryied to do it simple, without functions, because back then we didn't see functions, but I ended up including some. Can you please do it? So I can analize it. This is what I have:

#include <iostream>
using namespace std;

//Prototypes
void show_menu();
int option1(int);


//Globals
//int user_option=0;
const double new_games = 9.95, other_games = 7.95;


int main()
{

	/*
	Calculate the purchase of video game sales.

	If customer buys more than 3 games, the forth one is free. 
	Ask how many the user is purchasing.
	Ask whether the game is a new release or not.
	Then display the total of the purchase

	*/

	show_menu();

	

	

	


	cout << "Ok.. bye bye!";

	cin.ignore();
	cin.get();
	return 0;
}



void show_menu()
{
	cout << "Hi, welcome to GameStop, follow the menu to buy new/used games.\n\n";
	cout << R"(
			-------------------------------------
			|Option 1- Buy new games/New release|
			|Option 2- Buy used games	|
			|Option 3- Exit/Finish buying	|
			-------------------------------------
)";
}

int option1(int x)
{
	int buy_new = 0, total = 0, user = 0;

	if (user == 1)
	{
		cout << "\nHow many new games would you like to buy? ";
		cin >> buy_new;

		if (buy_new >= 3)
		{
			cout << "\nYou have a discount! You have 1 free game.\n";	
			cout << "You're buying " << buy_new << " games + 1 free.";
			total = buy_new + 1;
		}
		
	}

	return total;
}



void loop()
{

	int user = 0, option1_total=0;

	cout << "\t\t\tEnter an option: ";
	cin >> user;


	while (user > 0 && user < 3)
		{
			option1_total=
			cout << "\t\t\tAnything else?: ";
			cin >> user;
		}



		cout << "\nWould you like to buy something else? ";
		cin >> user;

	}
}

[bazetwo]

is the maximum order going to be 4 or more ?

[bazetwo]

Play with the Code below to suit your purpose.

#include <iostream>
using std::cout; using std::cin;
using std::endl;


int main()
{
    const double newGamePrice = 9.95;
    const double oldGamePrice = 7.95;
    enum gameOptions {NEW_GAME, OLD_GAME};
    int numOfGames;
    int gameType;
    double costPerGame;
    cout << "How many games do you want to buy ?" << endl;
    cin >> numOfGames;
    cout << "New Release or Old ? 0 == New, 1 == Old" << endl;
    cin >> gameType;

    if(gameType == NEW_GAME)
        costPerGame = newGamePrice;
    else
        costPerGame = oldGamePrice;

    double totalCost = 0;
    if(numOfGames > 3)
    {
        //assume he bought more than 3, give him 1 for free
        totalCost = (numOfGames - 1) * costPerGame;
    }
    else
    {
        // he must have bought less than 3
        totalCost = numOfGames * costPerGame;
    }

    cout << "you bought " << numOfGames << " Games for " << totalCost << endl;


    return 0;
}

[CodeWriter]

Where did the code you have come from?

This is how I might have started ...

#include <iostream>
using namespace std;

//Prototypes
void show_menu();

//Globals

const double new_games = 9.95, other_games = 7.95;


int main()
{

	/*
	Calculate the purchase of video game sales.

	If customer buys more than 3 games, the forth one is free.
	Ask how many the user is purchasing.
	Ask whether the game is a new release or not.
	Then display the total of the purchase

	*/
	int choice = 0;
	int newGames = 0;
    int oldGames = 0;
    
    do
    {
	    show_menu();
        cout << "ENTER CHOICE: ";
        cin  >> choice;
        cout << "YOU CHOSE MENU ITEM " << choice << endl;
        if (choice == 1)
            newGames = newGames + 1;   // count number of new games
        if (choice ==2)
            oldGames = oldGames + 1;   // count number of old games
            
    }while (choice != 3);              // stop choosing games
    
    // COMPUTE AND DISPLAY DETAILS OF PURCHASE

	cout << "Ok.. bye bye!";

	cin.ignore();
	cin.get();
	return 0;
}



void show_menu()
{
	cout << "Hi, welcome to GameStop, follow the menu to buy new/used games.\n\n";
	cout << "-------------------------------------" << endl
         << "|Option 1- Buy new games/New release|" << endl
         << "|Option 2- Buy used games           |" << endl
         << "|Option 3- Exit/Finish buying       |" << endl
         << "------------------------------------" << endl;
}

[Arturofm]

Thanks for your help/time guys!!!