You are given an integer array nums and an integer digit x.
A subarray nums[l..r] is considered valid if the sum of its elements satisfies both of the following conditions:
x.x.Return the number of valid subarrays.
Example 1:
Input: nums = [1,100,1], x = 1
Output: 4
Explanation:
The valid subarrays are:
nums[0..0]: sum = 1nums[0..1]: sum = 1 + 100 = 101nums[1..2]: sum = 100 + 1 = 101nums[2..2]: sum = 1Thus, the answer is 4.
Example 2:
Input: nums = [1], x = 2
Output: 0
Explanation:
The only subarray is nums[0..0] with a sum of 1, which does not satisfy the conditions.
Thus, the answer is 0.
Constraints:
1 <= nums.length <= 15001 <= nums[i] <= 1091 <= x <= 9Loading editor...
[1,100,1] 1