Package g1501_1600.s1567_maximum_length_of_subarray_with_positive_product

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    1567 - Maximum Length of Subarray With Positive Product.

    Medium

    Given an array of integers nums, find the maximum length of a subarray where the product of all its elements is positive.

    A subarray of an array is a consecutive sequence of zero or more values taken out of that array.

    Return the maximum length of a subarray with positive product.

    Example 1:

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

    Output: 4

    Explanation: The array nums already has a positive product of 24.

    Example 2:

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

    Output: 3

    Explanation: The longest subarray with positive product is 1,-2,-3 which has a product of 6. Notice that we cannot include 0 in the subarray since that'll make the product 0 which is not positive.

    Example 3:

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

    Output: 2

    Explanation: The longest subarray with positive product is -1,-2 or -2,-3.

    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 Integer getMaxLen(IntArray nums)

      • Methods inherited from class java.lang.Object

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