Description: Statistics problem. A book page numbers from the natural numbers sequentially coding until the natural number n. The page number of the book in accordance with the usual custom layout each page does not contain a the excess leading digital 0. For example, the first six with a digital 6 shows, rather than 06 or 006. Digital counting problem requires calculated the total page number n of a given book, a book PAGE were used how many times the numbers 0, 1, 2 ..., 9.
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CountNumber.java
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