include<iostream.h>
#include<conio.h>
#include<process.h>

 float canitem,bottleitem,sweetsitem,pensitem,foldersitem;
// this is so the variables can be called into the sales function.

 int sales(float,float,float,float,float);

main()
{
 const float items[5]={0.50,1.00,0.40,0.50,2.00};
  // these variables must always contain the cost price.

 float cantotal,bottletotal,sweetstotal,penstotal,folderstotal;
  // variables to be used for totalling the cost price on each item.

 float grandtotal,tendered,change,vat;
  // variables to be used for the calculation totals.

 char heading[12]="Sky College";
  // The college name can now be easily called into part of the program.

// The following is now the main page display and for the user to input
// the amount of items purchased, using a loop to display a line.

  
  clrscr(); //

  cout<<"\t\t\t"<<heading<<endl<<"\t\t"; // This will centralise the heading.

   int i; // variable for the loop.
     for(i=0;i<=17;i++)
       {
	 int show;
	 show=i%2;
	((show==1)?cout<<"--":cout<<" ");
       }

  cout<<"\n\n\n\n Please enter the number of each item purchased."<<endl;

   cout<<"\n* Cool drink can: ";
   cin>>canitem;
   cout<<"\n* Cool drink bottle: ";
   cin>>bottleitem;
   cout<<"\n* Sweets: ";
   cin>>sweetsitem;
   cout<<"\n* Pens: ";
   cin>>pensitem;
   cout<<"\n* Folders: ";
   cin>>foldersitem;

 cantotal=canitem*items[0];
 bottletotal=bottleitem*items[1];   // These are the formulas for
 sweetstotal=sweetsitem*items[2];   // adding the totals
 penstotal=pensitem*items[3];         // for display.
 folderstotal=foldersitem*items[4];


sales(cantotal,bottletotal,sweetstotal,penstotal,folderstotal);
// passing the total values into the function and calling the function.

  grandtotal=cantotal+bottletotal+sweetstotal+penstotal+folderstotal;

   cout<<"\n\n\t\t\t\t        TOTAL: œ"<<grandtotal;

  getch();
  }

// The sales function will display only items and
// total cost for items actually purchased by using the if expression to
// exclude any total which is equal to 0.

int sales(float c,float b,float s,float p,float f)
 {
  clrscr();

  if(c==0)
    {
    cout<<"";
    }
  else
    {
     cout<<"\nCool drink cans    purchased: "<<canitem<<"\t\tCost: œ"<<c;
    }
  if(b==0)
    {
     cout<<"";
    }
  else
    {
     cout<<"\nCool drink bottles purchased: "<<bottleitem<<"\t\tCost: œ"<<b;
    }
  if(s==0)
    {
     cout<<"";
    }
  else
    {
     cout<<"\nSweets             purchased: "<<sweetsitem<<"\t\tCost: œ"<<s;
    }
  if(p==0)
    {
     cout<<"";
    }
  else
    {
     cout<<"\nPens               purchased: "<<pensitem<<"\t\tCost: œ"<<p;
    }
  if(f==0)
    {
     cout<<"";
    }
  else
    {
     cout<<"\nFolders            purchased: "<<foldersitem<<"\t\tCost: œ"<<f;
    }
  return c;
  return b;
  return s;
  return p;
  return f;

  }

     cout << "\nCool drink cans    purchased: "
          << resetiosflags(ios::fixed)
          << canitem<<"\t\tCost: œ"
          << setiosflags(ios::fixed) 
          << setprecision(2) 
          << c;

 return c;
return b;
return s;
return p;
return f;

#include <iostream> // standard C++ header
#include <iomanip> // standard C++ header
#include <conio.h>  // non-standard header

using namespace std; // you need something like this now