3349 - Adjacent Increasing Subarrays Detection I.

Easy

Given an array nums of n integers and an integer k, determine whether there exist two adjacent subarrays of length k such that both subarrays are strictly increasing. Specifically, check if there are two subarrays starting at indices a and b (a < b), where:

• Both subarrays nums[a..a + k - 1] and nums[b..b + k - 1] are strictly increasing.

• The subarrays must be adjacent , meaning b = a + k.

Return true if it is possible to find two such subarrays, and false otherwise.

Example 1:

Input: nums = 2,5,7,8,9,2,3,4,3,1, k = 3

Output: true

Explanation:

• The subarray starting at index 2 is [7, 8, 9], which is strictly increasing.

• The subarray starting at index 5 is [2, 3, 4], which is also strictly increasing.

• These two subarrays are adjacent, so the result is true.

Example 2:

Input: nums = 1,2,3,4,4,4,4,5,6,7, k = 5

Output: false

Constraints:

• 2 <= nums.length <= 100

• 1 < 2 * k <= nums.length

• -1000 <= nums[i] <= 1000