uppose, you are running a book shop. You have 80 books there. Design a structure name Book_info to store all the books' Name, Id, present price, A ake all the data for all the books from user. uppose, you have to change some books price. Write a function name price_change(). If a book's publication year is between 1990 to 2000, its price Print all the books name. Also make a total price of all the books. pen a text file name Rabindro_Database. If the file opens successfully, write all the books name whose author is Rabindranath.

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