Write a c++ program that simulates a Book store. A user has two options of books to buy, either science fiction or horror books. Both options have their own books along with their prices. The user can order more than once as long as the program is running. When the user pays for the book he chooses, a descriptive message is printed to him, explaining if he paid less, more or exact amount of money.

1. Create two string arrays for science fiction and horror books.

2. create two double arrays for science fiction and horror books prices.

3. create function void pay(double paid, double actual), which calculates if the user should pay more or less money or if he paid exactly the actual amount.