java.lang.Object
g1001_1100.s1015_smallest_integer_divisible_by_k.Solution

public class Solution extends Object
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
  • Constructor Details

    • Solution

      public Solution()
  • Method Details

    • smallestRepunitDivByK

      public int smallestRepunitDivByK(int k)