Breakfast Menu Program help

[angel512]

Hey guys so i am doing a c++ program where the user picks items from the menu and it shows the sub total, tax and grand total. Everything seems to be working but I am having trouble figuring out how to make it show A count of the number of times the item has been ordered
 and write a function whereto determine (and return) the index of the item with the highest count (if more
than one item has the maximum count, it must return the index of any one of them).


#include <iostream>

using namespace std;
struct menuItemType
{
string name;
double price;
};

void GetData(menuItemType & menu, string name, double price)
{
menu.name = name;
menu.price = price;
}

void ShowMenu()
{
cout << "(1) Plain Egg.............$1.45\n"
<< "(2) Bacon and Egg....$2.45\n"
<< "(3) Muffin..................$0.99\n"
<< "(4) French Toast.......$1.99\n"
<< "(5) Fruit Basket.........$2.49\n"
<< "(6) Cereal.................$0.69\n"
<< "(7) Coffee......................$0.50\n"
<< "(8) Tea.........................$0.75\n";
}

void printCheck(menuItemType & selection, double* total)
{
*total += selection.price;
cout << selection.name << " " << selection.price << endl;
}

int main()
{
menuItemType menuList[30];
cout << "Select as many items are you want. Press N then enter key to stop\n";
int choice;
int counter = 0;
double price;
double total = 0;
string name;
menuItemType * ptr_begin(menuList);
menuItemType * ptr_end(menuList);

ShowMenu();
while (cin >> choice)
{
ShowMenu();
if (choice == 1)
{
price = 1.45;
name = "Plain Egg";
}
else if (choice == 2)
{
price = 2.45;
name = "Bacon and Egg";
}
else if (choice == 3)
{
price = 0.99;
name = "Muffin";
}
else if (choice == 4)
{
price = 1.99;
name = "French Toast";
}
else if (choice == 5)
{
price = 2.49;
name = "Fruit Basket";
}
else if (choice == 6)
{
price = 0.69;
name = "Cereal";
}
else if (choice == 7)
{
price = 0.50;
name = "Coffee";
}
else if (choice == 8)
{
price = 0.75;
name = "Tea";
}

else
{
cout << "\n***Thats not a proper selection. Please try again.***\n";
continue;
}
GetData(menuList[counter], name, price);
ptr_end += 1;
++counter;
if (counter == 30)
break;
}
if (ptr_begin != ptr_end)
{
cout << "\nYou selection consists of;\n";
for (menuItemType * ptr_begin(menuList); ptr_begin != ptr_end; ptr_begin += 1)
{
printCheck(*ptr_begin, &total);
}
cout<< "\nYour subtotal will be:$"<< total<<endl;
cout << "\nTotal Tax: $"<< (total * .07) <<endl;
cout.precision(3);
cout <<"Your Grand Total:$"<< total + (total * .07) << endl;
}
cout << "\nThank you. Come again.\n";

return 0;
}

[H00G0]

hi anger 512.

Please always user code tags (the <> icon on the right side of the text box) it makes your code a whole lot easier for people to read.

Everything seems to be working but I am having trouble figuring out how to make it show A count of the number of times the item has been ordered
 and write a function whereto determine (and return) the index of the item with the highest count (if more
than one item has the maximum count, it must return the index of any one of them).

Why don't you make an array for instance holding for each of the items, the number of times the user has bought them (incrementing by 1 each time user choses said item). Then you can run a comparison function to find the item(s) that have been bought the most times.

[H00G0]

This is how I would have implemented what you mentioned. Changing a couple of things, especially your menuItemType pointers..

#include <iostream>
#include <string>

using namespace std;

enum { plain_egg, bacon_and_egg, muffin, french_toast, fruit_basket, cereal, coffe, tea };

struct Item
{
	string name;
	int count = 0;
	double price;
	
	Item(string n, double p) : name(n), price(p)
	{}
};

void showMenu(Item*, const int);
string checkMostPurchasedItem(Item*, const int);
void pause();



int main()
{
	const int MAX_ITEMS = 8;
	const int MAX_PURCHASES = 10;
	Item items[MAX_ITEMS] = { {"Plain egg", 1.45},
							{"Bacon and egg", 2.45},
							{"Muffin", 0.99},
							{"French Toast", 1.99},
							{"Fruit basket", 2.49},
							{"Cereal", 0.69},
							{"Coffee", 0.50},
							{"Tea", 0.75} };
							
	int purchasedItems[MAX_PURCHASES] = { -1, -1, -1, -1 , -1, -1, -1, -1, -1, -1 };					
	double totalPrice = 0;
	
	cout << "\n You can buy up to " << MAX_PURCHASES << " items. Enter \"0\" when you want to cash out";
	
	for (int count = 0; count < MAX_PURCHASES; count ++)
	{
	    int choice;
	    
	    do
	    {
		    showMenu(items, MAX_ITEMS);
		
		    cin >> choice;
		    choice--;
		    
		    if (choice == -1)
			    break;
		
			cout << "\n Incorrect input! Try again..";
		
			for (int index = plain_egg; index <= tea; index ++)
			{
				if (choice == index)
				{
					purchasedItems[count] = index;
										
					totalPrice += items[index].price;
					items[index].count++;
					break;
				}
			}
	    }
		while (choice < -1 || choice > 7);
		
		if (choice != -1)
			cout << "\t\t\t Item bought!";
	    else
	        break;
	}

		
	cout << "\n\n You have purchased the following items: \n";
	
	for (int count = 0; count < MAX_PURCHASES; count ++)
	{
		if (purchasedItems[count] != -1)
		{
			cout << "\n_ " << items[purchasedItems[count]].name;
		}
		else
			break;
	}
	
	cout << checkMostPurchasedItem(items, MAX_ITEMS);
	
	cout << "\n\n Total is: $" << totalPrice;
	
	cout.precision(3);
	
	cout << "\n Total with taxes is $" << totalPrice + (totalPrice *.07)
		<< "\n Thank you. Come again.\n";
		
		
	
	pause();
	
	return 0;
}


void showMenu(Item item[], const int MAX)
{
	cout << "\n\n ___MENU___\n";
	
	for (int count = 0; count < MAX; count ++)
	{		
		cout << "\n (" << count + 1 << ")_" << item[count].name << " ";
				
		for (int index = item[count].name.size(); index < 30; index ++)
			cout <<  ".";
			
		cout << " $" << item[count].price;
		
	
	}
	
	cout << "\n\n Choice: ";
	
	return;
}

string checkMostPurchasedItem(Item item[], const int MAX)
{
	int highest = 0;
	string highestName;
	
	for (int count = 0; count < MAX; count ++)
	{
		if (item[count].count > highest)
		{
			highest = item[count].count;
			highestName = item[count].name;
		}
	}
	
	if (highest != 0)
	{
		string temp = "\n\n\n The Item that was the most bought was ";
		temp += highestName;
		temp += ",\n you bought it ";
		temp.append(to_string(highest));
		temp += " times!";
		
		return temp;
	}
	else
		return ("");
}

void pause()
{
	cout << "\n\n\n Press ENTER to exit...";
	cin.sync();
	cin.get();
	cout << "\n\n\n\n";
	
	return;
}