Write a program that calculates the amount of money in a savings account that earns a guaranteed yearly interest rate. The program will accept from the user the account is present value (i. e. what is in the savings account now), the annual interest rate (in a percentage), and the number of years the money will be left in the account (years). The program should display the savings account future value and the number of years the money will be left in the account.

Assume the existence of a bankaccount class. define a derived class, savingsaccount that contains two instance variables: the first a double, named interestrate, and the second an integer named interesttype. the value of the interesttype variable can be 1 for simple interest and 2 for compound interest. there is also a constructor that accepts two parameters: a double that is used to initialize the interestrate variable, and a string that you may assume will contain either "simple", or "compound", and which should be used to initialize the interesttype variable appropriately. there should also be a pair of functions getinterestrate and getinteresttype that return the values of the corresponding data members (as double and int respectively).