Class Solution
java.lang.Object
g1001_1100.s1015_smallest_integer_divisible_by_k.Solution
1015 - Smallest Integer Divisible by K\.
Medium
Given a positive integer `k`, you need to find the **length** of the **smallest** positive integer `n` such that `n` is divisible by `k`, and `n` only contains the digit `1`.
Return _the **length** of_ `n`. If there is no such `n`, return -1.
**Note:** `n` may not fit in a 64-bit signed integer.
**Example 1:**
**Input:** k = 1
**Output:** 1
**Explanation:** The smallest answer is n = 1, which has length 1.
**Example 2:**
**Input:** k = 2
**Output:** -1
**Explanation:** There is no such positive integer n divisible by 2.
**Example 3:**
**Input:** k = 3
**Output:** 3
**Explanation:** The smallest answer is n = 111, which has length 3.
**Constraints:**
*
1 <= k <= 105
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Solution
public Solution()
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Method Details
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smallestRepunitDivByK
public int smallestRepunitDivByK(int k)
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