Your reading class has given you a list of books to read. each book can be considered as an ordered pair (t, d) where t is the time it will take for you to read the book and d is the date the book is due (maybe there is an exam on the book that day and you will only succeed if you read the whole book.) you realize that this class is challenging and you may not be able to read all the books by their due dates. your goal is to read the maximum number of books before they are due. you can