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Grokking the Coding Interview Patterns in Python

Solution: Longest Subarray With Maximum Bitwise AND

Explore how to identify the longest contiguous subarray in a list where the bitwise AND of its elements is maximized. Understand how focusing on the largest number in the list simplifies finding this subarray, and learn to implement this solution efficiently with O(n) time complexity and constant space usage.

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Statement

Given an integer list, nums, find the length of the longest subarrayA subarray is a contiguous sequence of elements within the array. where the bitwise AND of its elements equals the maximum possible bitwise AND among all subarrays of nums. The bitwise AND of a list is calculated by performing the bitwise AND operation on all elements within the subarray.

Constraints:

  • 1≤1\leq nums.length ≤103\leq 10^3 ...