Package g2301_2400.s2348_number_of_zero_filled_subarrays

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    2348 - Number of Zero-Filled Subarrays\.

    Medium

    Given an integer array nums, return the number of subarrays filled with 0.

    A subarray is a contiguous non-empty sequence of elements within an array.

    Example 1:

    Input: nums = 1,3,0,0,2,0,0,4

    Output: 6

    Explanation:

    There are 4 occurrences of 0 as a subarray.

    There are 2 occurrences of 0,0 as a subarray.

    There is no occurrence of a subarray with a size more than 2 filled with 0. Therefore, we return 6.

    Example 2:

    Input: nums = 0,0,0,2,0,0

    Output: 9

    Explanation:

    There are 5 occurrences of 0 as a subarray.

    There are 3 occurrences of 0,0 as a subarray.

    There is 1 occurrence of 0,0,0 as a subarray.

    There is no occurrence of a subarray with a size more than 3 filled with 0. Therefore, we return 9.

    Example 3:

    Input: nums = 2,10,2019

    Output: 0

    Explanation: There is no subarray filled with 0. Therefore, we return 0.

    Constraints:

    • <code>1 <= nums.length <= 10<sup>5</sup></code>

    • <code>-10<sup>9</sup><= numsi<= 10<sup>9</sup></code>

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Long zeroFilledSubarray(IntArray nums)

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait