- Difficulty: Easy
- Tags: LeetCode, Easy, Array, Sliding Window, leetcode-2760, O(n), O(1)
Problem
You are given a 0-indexed integer array nums
and an integer threshold
.
Find the length of the longest subarray of nums
starting at index l
and ending at index r
(0 <= l <= r < nums.length)
that satisfies the following conditions:
nums[l] % 2 == 0
- For all indices
i
in the range[l, r - 1]
,nums[i] % 2 != nums[i + 1] % 2
- For all indices
i
in the range[l, r]
,nums[i] <= threshold
Return an integer denoting the length of the longest such subarray.
Note: A subarray is a contiguous non-empty sequence of elements within an array.
Example 1:
Input: nums = [3,2,5,4], threshold = 5 Output: 3 Explanation: In this example, we can select the subarray that starts at l = 1 and ends at r = 3 => [2,5,4]. This subarray satisfies the conditions. Hence, the answer is the length of the subarray, 3. We can show that 3 is the maximum possible achievable length.
Example 2:
Input: nums = [1,2], threshold = 2 Output: 1 Explanation: In this example, we can select the subarray that starts at l = 1 and ends at r = 1 => [2]. It satisfies all the conditions and we can show that 1 is the maximum possible achievable length.
Example 3:
Input: nums = [2,3,4,5], threshold = 4 Output: 3 Explanation: In this example, we can select the subarray that starts at l = 0 and ends at r = 2 => [2,3,4]. It satisfies all the conditions. Hence, the answer is the length of the subarray, 3. We can show that 3 is the maximum possible achievable length.
Constraints:
1 <= nums.length <= 100
1 <= nums[i] <= 100
1 <= threshold <= 100