Write this program in C++ \"grocury.txt\" apples:5:1 milk:3:2 bread:3:1 candy:10

Question

Write this program in C++

"grocury.txt"

apples:5:1

milk:3:2

bread:3:1

candy:10:1

cheese:5:6

oranges:4:2

cherries:3:2

How much money do you have?: 4

Here's what we have in stock today:

*** apples $1 (qty: 5)

*** milk $2 (qty: 3)

*** bread $1 (qty: 3)

*** candy $1 (qty: 10)

*** cheese $6 (qty: 5)

*** oranges $2 (qty: 4)

*** cherries $2 (qty: 3)

You have $4

What would you like to put into your cart: oranges

Would you like to continue shopping? (y/n): y

Here's what we have in stock today:

*** apples $1 (qty: 5)

*** milk $2 (qty: 3)

*** bread $1 (qty: 3)

*** candy $1 (qty: 10)

*** cheese $6 (qty: 5)

*** oranges $2 (qty: 3)

*** cherries $2 (qty: 3)

You have $2

What would you like to put into your cart: apples

Would you like to continue shopping? (y/n): y

Here's what we have in stock today:

*** apples $1 (qty: 4)

*** milk $2 (qty: 3)

*** bread $1 (qty: 3)

*** candy $1 (qty: 10)

*** cheese $6 (qty: 5)

*** oranges $2 (qty: 3)

*** cherries $2 (qty: 3)

You have $1

What would you like to put into your cart: milk

Sorry, you don't have enough money!

Would you like to continue shopping? (y/n): y

Here's what we have in stock today:

*** apples $1 (qty: 4)

*** milk $2 (qty: 3)

*** bread $1 (qty: 3)

*** candy $1 (qty: 10)

*** cheese $6 (qty: 5)

*** oranges $2 (qty: 3)

*** cherries $2 (qty: 3)

You have $1

What would you like to put into your cart: butter

Sorry, we're all out of butter today.

Would you like to continue shopping? (y/n): y

Here's what we have in stock today:

*** apples $1 (qty: 4)

*** milk $2 (qty: 3)

*** bread $1 (qty: 3)

*** candy $1 (qty: 10)

*** cheese $6 (qty: 5)

*** oranges $2 (qty: 3)

*** cherries $2 (qty: 3)

You have $1

What would you like to put into your cart: candy

Would you like to continue shopping? (y/n): n

Here's what you've added to your shopping cart:

* oranges

* apples

* candy

You spent $4 and have $0 left over

Explanation / Answer

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tested with DEV C++

#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int index(string,string[],int);
void breakup(string ,string[],int[],int[],int);
void output(string[],int[],int[],int);
   int main()
   { string name[10],buffer,cart[10];
   int cost[10],amt[10],spent=0,have=0,i,items=0,inCart=0;
   char cont='y';
    ifstream input;
   input.open("grocery.txt");           //open file
   if(input.fail())             //is it ok?
       { cout<<"file did not open please check it ";
        system("pause");
        return 1;
        }
    input>>buffer;
    while(input)
        {breakup(buffer,name,cost,amt,items);
        items++;
        input>>buffer;
        }
    cout<<"How much money do you have? ";
    cin>>have;
    while(cont=='y'||cont=='Y')
        {output(name,cost,amt,items);
        cout<<"You have $"<<have<<endl;
        cout<<"What would you like to put into your cart: ";
        cin>>buffer;
        i=index(buffer,name,items);
        if(i>=items)
            cout<<"Sorry, we're out of "<<buffer<<" today. ";
        else
           if(cost[i]>have)
                cout<<"Sorry, you don't have enough money! ";
            else
               {cart[inCart]=buffer;
               inCart++;
               have-=cost[i];
               amt[i]--;
               spent+=cost[i];
               }                  
         cout<< "Would you like to continue shopping? (y/n): ";
         cin>>cont;                    
        }
       cout<<"Here's what you've added to your shopping cart: ";
       for(i=0;i<inCart;i++)
            cout<<"* "<<cart[i]<<endl;
       cout<<"You spent $"<<spent<<" and have $"<<have<<" left over ";
       input.close();
         system("pause");
         return 0;
     }
void output(string name[],int cost[],int amt[],int items)
{int i;
cout<<"Here's what we have in stock today: ";
for(i=0;i<items;i++)
     cout<<"***"<<name[i]<<" $"<<cost[i]<<" ( qty: "<<amt[i]<<") ";
}
int index(string buffer,string name[],int items)
{int i;
for(i=0;i<items;i++)
    if(buffer.compare(name[i])==0)
         return i;
return items;
}
void breakup(string buffer,string name[],int cost[],int amt[],int items)
{int i,j;
i=buffer.find(':',0);
j=buffer.find(':',i+1);
name[items]=buffer.substr(0,i);
amt[items]= atoi(buffer.substr(i+1,j-i+1).c_str());
cost[items]=atoi(buffer.substr(j+1,buffer.length()).c_str());;

}

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