Description: Pages of a book starting from the natural number 1 until the natural number sequence encoding n. Book page layout in accordance with common practice, each page do not contain extra leading digit 0. For example, on page 6 with the number 6 that, rather than 06 or 006 and so on. Digital counting problem requires the total page number given the book n, calculate the total page number in the book were how many times the number used in 0,1, 2, ..., 9.
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prog11.pdf
Cpp2.rar
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