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That step-by-step electric motor the step-by-step electric motor assembler program , comparison have been resolved well gets it in gear is able to appear to see dead phenomenon
ACM試題Problem K:Ones
Description
Given any integer 0 <= n <= 10000 not divisible by 2 or 5, some multiple of n is a number which in decimal notation is a sequence of 1 s. How many digits are in the smallest such a multiple of n?
