Solution: Triples with Bitwise AND Equal To Zero
Explore how to efficiently count triplets in an integer array that satisfy a bitwise AND condition of zero. This lesson helps you understand a two-phase approach involving precomputing pairwise AND frequencies and leveraging a hash map to reduce computation from cubic to quadratic time complexity while maintaining constant space complexity.
We'll cover the following...
We'll cover the following...
Statement
You’re given an array of integers called nums. Your task is to count how many triplets of indexes (i, j, k) satisfy the condition nums[i] & nums[j] & nums[k] == 0, where & is the bitwise AND operator and ijk