Problem 59736. Counting the occurrences of a digit in a book

The printer has printed a book with 'p' pages. How many times did they use the character 'd'? In other words, how many times does the digit 'd' appear when writing numbers from 1 to 'p'?
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54.29% Correct | 45.71% Incorrect
Last Solution submitted on May 10, 2025

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