Solution: Triples with Bitwise AND Equal To Zero
Explore how to count triplets in an array where the bitwise AND of three elements equals zero. Learn an efficient two-phase approach using a hash map for frequency counting and bitwise operations to reduce complexity from cubic to quadratic.
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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