public class Solution
extends Object
713 - Subarray Product Less Than K\.
Medium
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`.
**Example 1:**
**Input:** nums = [10,5,2,6], k = 100
**Output:** 8
**Explanation:**
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.
**Example 2:**
**Input:** nums = [1,2,3], k = 0
**Output:** 0
**Constraints:**
* 1 <= nums.length <= 3 * 104
* `1 <= nums[i] <= 1000`
* 0 <= k <= 106