C++ PROGRAM(Package-delivery) Write a base class, Package . This class represents a package, it should contain its weight in kilos and the cost per kilo to ship the package. It should also have a...

C++ PROGRAM(Package-delivery)

Write a base class,
Package. This class represents a package, it should
contain its weight in kilos and the cost per kilo to ship the package. It should also have a public member function,
calculateCost(), that calculates the cost for the package to ship. This class’ constructor should accept values to initialize its weight and cost per kilo.
Package’s calculateCost()
should return a
double
by multiplying its weight by the cost per kilo.

• Create a derived class,
  TwoDayPackage, that inherits from Package.
  Add a data member that represents a flat-fee for the two-day delivery ser-
  vice. This class’ constructor should accept a value to initialize this fee.


• Override
  TwoDayPackage’s calculateCost()
  to add the flat-fee on top of the standard cost.
  NOTE: that the standard cost calculation could change,
  so don’t assume the standard cost is just weight times cost per weight.


• Create another derived class,
  OvernightPackage, that inherits from Package. Add a data member that represents an additional fee per kilo for the overnight delivery service. This class’ constructor should accept a value to initialize this fee.


• Override
  OvernightPackage’s calculateCost()
  to add the fee per kilo to the standard cost.


• Accept 4 doubles to represent:
  • the weight of the package,
  • cost per kilo to ship,
  • flat fee for the 2 day package, and
  • additional fee per kilo for overnight


• Print out the cost for the standard package, two day package, and overnight package on 1 line.

Sample Input

1 5 80 150 80

Sample Output

1 400.00 550.00 800.00