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Grokking the Coding Interview Patterns in C#

Solution: Longest Subarray With Maximum Bitwise AND

Explore how to determine the longest subarray in a list where the bitwise AND of all elements is the highest possible value. This lesson helps you understand the efficient approach to solve this problem by identifying and tracking contiguous occurrences of the maximum element, enabling an O(n) time complexity and constant space usage solution in C#.

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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 ...