Number of zero filled subarrays
November 12, 2022
math-and-geometryProblem URL: Number of zero filled subarrays
We will iterate over each number, if the number is zero, we will add the number of subarrays that can be formed with the previous numbers to the result. We will also add the number of subarrays that can be formed with the previous numbers to the result.
class Solution:
def zeroFilledSubarray(self, nums: List[int]) -> int:
res, count = 0, 0
for num in nums:
if num != 0:
count = 0
else:
count += 1
res += count
return res
Time Complexity: O(n)
Space Complexity: O(1)