Given an array of integers nums and an integer k , return the number of contiguous subarrays where the product of all the elements in the subarray is strictly less than k .
Examples
Example 1
Input: nums = [10,5,2,6], k = 100
Output: 8
The 8 subarrays that have product less than 100 are:
[10], [5], [2], [6], [10, 5], [5, 2], [2, 6], [5, 2, 6]
Note that [10, 5, 2] is not included as the product of 100 is not strictly less than k.
