How to print new sets of order

[gorgonopsis]

Hello everyone,
I'm working with our school assignment where you need to do a restaurant menu program where the user can order a maximum set of 5 and I'm wondering if I can change the variable during the loop and if so how?. I'm new to c++ and any help will be appreciated ty :)
P.S. The program should print the set of orders in the confirmation page and also to the receipt for example:
CONFIRMATION PAGE
you've ordered
set 1 (consist of 1 main dish, 1 sidedish and 1 beverage)
set 2 (same/different combination)
...
set 5

also their prices should tally at the receipt.
P.S. AGAIN:
I already did a code but it's too long and I need to repeat the switch statement five times and I need to replace a new variable.
Thanks again ciao!!

 
#include <iostream>
#include <cstdlib>
#include <limits>
using namespace std;
int main ()
{
// Varaiables for first set of orders*****************
string order1,order2,order3;
// Variables for main menu, side dish, and beverage********************
string main1 = "Main Dish 1",
       main2 = "Main Dish 2",
       main3 = "Main Dish 3",
       main4 = "Main Dish 4",
       main5 = "Main Dish 5",
       side1 = "Side Dish 1",
       side2 = "Side Dish 2",
       side3 = "Side Dish 3",
       side4 = "Side Dish 4",
       side5 = "Side Dish 5",
       bev1  = "Beverage 1",
       bev2  = "Beverage 2",
       bev3  = "Beverage 3",
       bev4  = "Beverage 4",
       bev5  = "Beverage 5";
//Variables for price************************
    double mainprice1 = 100, mainprice2 = 120, mainprice3 = 140, mainprice4 = 160, mainprice5 = 180,
           sideprice1 = 100, sideprice2 = 120, sideprice3 = 140, sideprice4 = 160, sideprice5 = 180,
           bevprice1  = 100, bevprice2  = 120, bevprice3  = 140, bevprice4  = 160, bevprice5  = 180;
//This is for the ordered dish and their respective price
    double price1,price2,price3;
    double total1,total2,total3;
// This is for the Main dish, Side dish, and beverage selection variable********************
    int MainDish, Sidedish, Beverage;
    int ans;
//User information
string lastname,firstname,address,contactnumber;
char middleinitial;

//restuarant's front page****************************
cout<<endl<<endl<<endl<<endl;
cout<<"\t\t\t\tRestaurant Name\n";
system ("pause");
system ("cls");


do{
     //Main Dish Selection**********************
    do{
    cout<<endl<<endl<<endl<<endl;
    cout<<"Our Main Menu\n";
    cout<<"(1)"<<main1<<"----------"<<mainprice1<<endl;
    cout<<"(2)"<<main2<<"----------"<<mainprice2<<endl;
    cout<<"(3)"<<main3<<"----------"<<mainprice3<<endl;
    cout<<"(4)"<<main4<<"----------"<<mainprice4<<endl;
    cout<<"(5)"<<main5<<"----------"<<mainprice5<<endl;
    cout<<endl<<endl;
    cout<<"Kindly select one\n";
    cin>>MainDish;
    system("cls");
    if(cin.fail()) {
        cin.clear();
         cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
         }
    //Switch for Maind Dish**************************
    switch(MainDish)
    {
        case 1:
        total1= mainprice1;
        order1= main1;
        price1=mainprice1;
        break;
        case 2:
        total1=mainprice2;
        order1=main2;
        price1=mainprice2;
        break;
        case 3:
        total1=mainprice3;
        order1=main3;
        price1=mainprice3;
        break;
        case 4:
        total1=mainprice4;
        order1=main4;
        price1=mainprice4;
        break;
        case 5:
        total1=mainprice5;
        order1=main5;
        price1=mainprice5;
        break;

            }
}while(!((MainDish== 1 )||(MainDish== 2 )||(MainDish== 3)||(MainDish== 4)||(MainDish== 5)));

    //Side Dish Selection***************************
    do{
    cout<<endl<<endl<<endl<<endl;
    cout<<"Our Side Dish\n";
    cout<<"(1)"<<side1<<"----------"<<sideprice1<<endl;
    cout<<"(2)"<<side2<<"----------"<<sideprice2<<endl;
    cout<<"(3)"<<side3<<"----------"<<sideprice3<<endl;
    cout<<"(4)"<<side4<<"----------"<<sideprice4<<endl;
    cout<<"(5)"<<side5<<"----------"<<sideprice5<<endl;
    cout<<endl<<endl;
    cout<<"Kindly select one\n";
    cin>>Sidedish;
    system("cls");
    if(cin.fail()) {
        cin.clear();
         cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
         }
    //switch for side dish**********************
    switch(Sidedish)
    {   case 1:
        total2= total1 + sideprice1;
        order2= side1;
        price2=sideprice1;
        break;
        case 2:
        total2= total1 + sideprice2;
        order2=side2;
        price2=sideprice2;
        break;
        case 3:
        total2=total1 + sideprice3;
        order2=side3;
        price2=sideprice3;
        break;
        case 4:
        total2= total1 + sideprice4;
        order2=side4;
        price2=sideprice4;
        break;
        case 5:
        total2=total1 + sideprice5;
        order2=side5;
        price2=sideprice5;
        break;
        default:
        cout<<"Incorrect Input\n";
        break;
            }
}while(!((Sidedish== 1)||(Sidedish== 2)||(Sidedish== 3)||(Sidedish== 4)||(Sidedish== 5)));

    //Beverage Selection************************
    do{
    cout<<endl<<endl<<endl<<endl;
    cout<<"Our Beverage\n";
    cout<<"(1)"<<bev1<<"----------"<<bevprice1<<endl;
    cout<<"(2)"<<bev2<<"----------"<<bevprice2<<endl;
    cout<<"(3)"<<bev3<<"----------"<<bevprice3<<endl;
    cout<<"(4)"<<bev4<<"----------"<<bevprice4<<endl;
    cout<<"(5)"<<bev5<<"----------"<<bevprice5<<endl;
    cout<<endl<<endl;
    cout<<"Kindly select one\n";
    cin>>Beverage;
    system("cls");
    if(cin.fail()) {
        cin.clear();
         cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
         }
    //switch for beverage**********************
    switch(Beverage)
    {   case 1:
        total3= total2 + bevprice1;
        order3= bev1;
        price3=bevprice1;
        break;
        case 2:
        total3= total2 + bevprice2;
        order3=bev2;
        price3=bevprice2;
        break;
        case 3:
        total3= total2 + bevprice3;
        order3=bev3;
        price3=bevprice3;
        break;
        case 4:
        total3= total2 + bevprice4;
        order3=bev4;
        price3=bevprice4;
        break;
        case 5:
        total3= total2 +bevprice5;
        order3=bev5;
        price3=bevprice5;
        break;
        default:
        cout<<"Incorrect Input\n";
        break;
            }
}while(!((Beverage== 1 )||(Beverage== 2 )||(Beverage== 3)||(Beverage== 4)||(Beverage== 5)));

system("cls");
//Confirmarion Page****************************
do {
cout<<endl<<endl<<endl;
cout<<"CONFIRMATION PAGE";
cout<<endl<<endl<<endl<<endl;
cout<<"You ordered the following:"<<endl;
cout<<order1<<endl<<order2<<endl<<order3<<endl;
cout<<endl<<endl;
cout<<"Do you want to order again?"<<endl;
cout<<"(1)Yes"<<endl;
cout<<"(2)No"<<endl;
cin>>ans;
if(cin.fail()) {
        cin.clear();
         cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
         }
switch (ans)
    {case 1:
    break;
    case 2:
    break;
    default:
    cout<<"Incorrect Input\n";
    break;
    }
system ("pause");
cout<<endl<<endl;
system ("cls");
}while (!((ans == 1 )||(ans == 2)));

system("cls");
}while (ans == 1);
//USER's INFORMATION**************************
system("cls");
cout<<endl;
cout<<"KINDLY COMPLETE THE FOLLOWING\n";
cout<<endl<<endl;
cout<<"Last Name\n";
cin>>lastname;
cout<<endl<<endl;
cout<<"Middle Initial\n";
cin>>middleinitial;
cout<<endl<<endl;
cout<<"First Name\n";
cin>>firstname;
cout<<endl<<endl;
cout<<"Contact Number\n";
cin>>contactnumber;
cout<<endl<<endl;
cout<<"Address\n";
cin>>address;
system("pause");
system("cls");
//Receipt*****************************
cout<<endl<<endl<<endl;
cout<<"Customer: "<<firstname<<" "<<middleinitial<<". "<<lastname<<endl;
cout<<"Contact Details: "<<contactnumber<<endl<<endl;
cout<<"Address:"<<address<<endl<<endl;
cout<<"___________________________________________________"<<endl;
cout<<"ORDER DETAILS"<<endl<<endl;
cout<<order1<<"\t\tP"<<price1<<endl;
cout<<order2<<"\t\tP"<<price2<<endl;
cout<<order3<<"\t\tP"<<price3<<endl<<endl;
cout<<"\tWITH A TOTAL OF P"<<total3<<endl;
cout<<"___________________________________________________"<<endl<<endl<<endl;






















































return 0;
}

[ne555]

struct item{
   std::string name;
   int price; //cents
};

struct order{
   item main, side, beverage;
};

item
   main_dish[] = {
      {"Foo a la bar", 4200},
      /*fill the rest*/
   },
   side_dish[] = {
      {"pie", 314},
      /*fill the rest*/
   },
   beverage[] = {
      {"water", 10000},
      /*fill the rest*/
   };

//showing
for(auto x: main_dish)
   std::cout << x.name << ' ' << x.price << '\n';

order the_order;
//...
the_order.main = main_dish[ choice ];
//...
the_order.side = side_dish[ choice ];
//...
the_order.beverage = beverage[ choice ];
//...


//total
total = the_order.main.price + the_order.side.price + the_order.beverage.price;

[gorgonopsis]

I don't quite understand where should I put the code I'm really a beginner sorry about that, should I use a for loop and array if so can you pls give me an example?