##### Welcome to Subscribe On Youtube

Formatted question description: https://leetcode.ca/all/2495.html

# 2495. Number of Subarrays Having Even Product

## Description

Given a 0-indexed integer array nums, return the number of subarrays of nums having an even product.

Example 1:

Input: nums = [9,6,7,13]
Output: 6
Explanation: There are 6 subarrays with an even product:
- nums[0..1] = 9 * 6 = 54.
- nums[0..2] = 9 * 6 * 7 = 378.
- nums[0..3] = 9 * 6 * 7 * 13 = 4914.
- nums[1..1] = 6.
- nums[1..2] = 6 * 7 = 42.
- nums[1..3] = 6 * 7 * 13 = 546.


Example 2:

Input: nums = [7,3,5]
Output: 0
Explanation: There are no subarrays with an even product.


Constraints:

• 1 <= nums.length <= 105
• 1 <= nums[i] <= 105