Leetcode Problem 1567. Maximum Length of Subarray With Positive Product

1567. Maximum Length of Subarray With Positive Product

Leetcode Solutions

Tracking Positive and Negative Product Lengths

  1. Initialize two variables, positive and negative, to keep track of the lengths of the longest subarrays with positive and negative products, respectively.
  2. Initialize ans to store the maximum length of a subarray with a positive product.
  3. Iterate through the array:
    • If the current element is zero, reset positive and negative to zero.
    • If the current element is positive, increment positive and increment negative if it is not zero.
    • If the current element is negative, swap positive and negative and increment them accordingly.
    • Update ans with the maximum value between ans and positive.
  4. Return ans as the result.
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Divide and Conquer with Subarray Analysis

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