The Tall Guy

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You are the tallest person in your class. While in library, the students of your class seek your help in taking out the books from the topmost shelf of the book rack. You will take out all the books kept in the topmost shelf. There are $N$ books in total. The $I$-th book is kept in the $K$-th shelf. You are given the shelf in which each book is kept Find the total number of books you woul

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solution.cppC++17

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