//----------------------Proprocessor Section--------------------------------

#include <iostream>
#include <iomanip>
using namespace std;

//----------------------Main Function---------------------------------------

int main ()
{

//----------------------Variables and Constants----------------------------

   float  purchase,	// amount of purchase 
	  savings,	// amount saved with the discount
	  amountowed;   // amount owed after savings

//----------------------Input Phase----------------------------------------

   cout << "\n Enter the amount of your purchase ->  ";
   cin  >>  purchase;

//----------------------Processing Phase-----------------------------------

   if (purchase < 50)
      savings = purchase * .1;
    else if (purchase <= 250)
      savings = 5 + ((purchase - 50) * .15);
    else 
      savings = 35 + ((purchase - 250) * .20);

   amountowed = purchase - savings;

//----------------------Output Phase----------------------------------------

   cout << fixed << setprecision(2);

   cout << "\n You have saved    " << savings;
   cout << "\n After savings you now owe   " << amountowed;

   if (purchase < 50)
      cout << "\n You won an electric knife";
    else if (purchase <= 250)
      cout << "\n You won a blender";
    else if (purchase > 250)
      cout << "\n You won a toster oven " << endl;

    return 0;
}