Question

I'm having a bit of an issue with one of my C++ labs. It's not for score but I need to understand it so I can move on.

A restaurant servers burgers for $8 and salads for $7.

When the customer selects a burger they must choose if they would like cheese. If they do, cheddar costs an additional 25 cents while pepper jack is 50 cents.

When the customer selects a salad they must choose if they would like no dressing, ranch for 10 cents more, and honey mustard for 15 cents more.

Customers can buy a drink for $1.50

Use the question prompts already declared as strings to ask the user for responses and then calculate the total cost the customer owes.

The code I wrote is as follows:

#include <iostream>
using namespace std;

int main() {

   int burgerOrSalad, cheese, kindOfCheese, dressing, drink;
  
   string q1 = "Would you like a 1) burger or 2) a salad?";
   string q2 = "Would you like cheese? 0) No or 1) Yes";
   string q3 = "What kind of cheese 1) Cheddar or 2) Pepper jack?";
   string q4 = "What kind of dressing would you like 0) None, 1) Ranch, 2) Honey Mustard?";
   string q5 = "Would you like a drink? 0) No, 1) Yes";

   cout << q1 << endl;
   cin >> burgerOrSalad;

   double cost = 0;

   cout << q2 << endl;
   cin >> cheese;

   cout << q3 << endl;
   cin >> kindOfCheese;

   cout << q4 << endl;
   cin >> dressing;

   cout << q5 << endl;
   cin >> drink;
    
   if ( burgerOrSalad == 1 ) {
       cost = 8.00;
   }
      if ( cheese == 1 ) {
      }
         else if ( kindOfCheese == 1 ) {
            cost = 8.25;
         }
         else if ( kindOfCheese == 2 ) {
            cost = 8.50;
         }

   if ( burgerOrSalad == 2 ) {
       cost = 7.00;
   }
      else if ( dressing == 1 ) {
         cost = 7.10;
      }
      else if ( dressing == 2 ) {
         cost = 7.15;
      }

   if ( drink == 1 ) {
       cost = 1.50;
   }
   cout << "Total cost of selected meal is " << cost << endl;
   return 0;
}

How can I add the cost if the input is 1 1 1 1?

I'm so lost.

Answer 1

#include <iostream>
using namespace std;

int main() {

   int burgerOrSalad, cheese, kindOfCheese, dressing, drink;
  
   string q1 = "Would you like a 1) burger or 2) a salad?";
   string q2 = "Would you like cheese? 0) No or 1) Yes";
   string q3 = "What kind of cheese 1) Cheddar or 2) Pepper jack?";
   string q4 = "What kind of dressing would you like 0) None, 1) Ranch, 2) Honey Mustard?";
   string q5 = "Would you like a drink? 0) No, 1) Yes";

   cout << q1 << endl;
   cin >> burgerOrSalad;

   double cost = 0;
   
   // if customer wants burger then only ask him for cheese
   if(burgerOrSalad == 1) {

        cout << q2 << endl;
        cin >> cheese;

        // ask q3 only if person wants cheese
        if(cheese == 1) {
                cout << q3 << endl;
                cin >> kindOfCheese;
        }
   } else {
        cout << q4 << endl;
        cin >> dressing;

   }


   cout << q5 << endl;
   cin >> drink;
    
   if ( burgerOrSalad == 1 ) {
      cost = 8.00;
      if ( cheese == 1 ) {
         if ( kindOfCheese == 1 ) {
            cost = 8.25;
         }
         else if ( kindOfCheese == 2 ) {
            cost = 8.50;
         }
      }
   } 

   else if ( burgerOrSalad == 2 ) {
       cost = 7.00;
       
       // only in case of salad, check the dressing price:
      if ( dressing == 1 ) {
         cost = 7.10;
      }
      else if ( dressing == 2 ) {
         cost = 7.15;
      }

   }
   
   // if customer wants drink also, apart from burger or salad,
   // then add the drink's cost to total cost whatsoever till now.
   if ( drink == 1 ) {
       cost += 1.50;
   }
   
   cout << "Total cost of selected meal is " << cost << endl;
   return 0;
}

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