Package g2701_2800.s2760_longest_even_odd_subarray_with_threshold

Class Solution

  • public class Solution
extends Object
    2760 - Longest Even Odd Subarray With Threshold.

    Easy

    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

    • Constructor Detail

      • Solution

        public Solution()

    • Method Detail

      • longestAlternatingSubarray

        public int longestAlternatingSubarray​(int[] nums,
                                      int threshold)