You are given an integer array nums.
A is arithmetic if the difference between consecutive elements in the subarray is constant.
You can replace at most one element in nums with any integer. Then, you select an arithmetic subarray from nums.
Return an integer denoting the maximum length of the arithmetic subarray you can select.
Example 1:
Input: nums = [9,7,5,10,1]
Output: 5
Explanation:
nums[3] = 10 with 3. The array becomes [9, 7, 5, 3, 1].[9, 7, 5, 3, 1], which is arithmetic because consecutive elements have a common difference of -2.Example 2:
Input: nums = [1,2,6,7]
Output: 3
Explanation:
nums[0] = 1 with -2. The array becomes [-2, 2, 6, 7].[-2, 2, 6, 7], which is arithmetic because consecutive elements have a common difference of 4.
Constraints:
4 <= nums.length <= 1051 <= nums[i] <= 105