We'll define S ( n ) for positive integer n as follows: the number of the n 's digits in the decimal base. For example, S (893)?=?3 , S (114514)?=?6 . You want to make a consecutive integer sequence starting from number m ( m ,? m ??1,?...
We'll define S ( n ) for positive integer n as follows: the number of the n 's digits in the decimal base. For example, S (893)?=?3 , S (114514)?=?6 .
You want to make a consecutive integer sequence starting from number m ( m ,? m ?+?1,?... ). But you need to pay S ( n )· k to add the number n to the sequence.
You can spend a cost up to w , and you want to make the sequence as long as possible. Write a program that tells sequence's maximum length.
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