You are given an array nums of non-negative integers and an integer k.
An array is called special if the bitwise OR of all of its elements is at least k.
Return the length of the shortest special non-empty subarray of nums, or return -1 if no special subarray exists.
\n
Example 1:
\n\nInput: nums = [1,2,3], k = 2
\n\nOutput: 1
\n\nExplanation:
\n\nThe subarray [3] has OR value of 3. Hence, we return 1.
Example 2:
\n\nInput: nums = [2,1,8], k = 10
\n\nOutput: 3
\n\nExplanation:
\n\nThe subarray [2,1,8] has OR value of 11. Hence, we return 3.
Example 3:
\n\nInput: nums = [1,2], k = 0
\n\nOutput: 1
\n\nExplanation:
\n\nThe subarray [1] has OR value of 1. Hence, we return 1.
\n
Constraints:
\n\n1 <= nums.length <= 2 * 1050 <= nums[i] <= 1090 <= k <= 109nums[i], we can maintain each subarray’s bitwise OR result ending with it.",
"The property of bitwise OR is that it never unsets any bits and only sets new bits",
"So the number of different results for each nums[i] is at most the number of bits 32."
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