LeetCode 2939 - Maximum Xor Product
That will be quite long and detailed given your required structure and depth. To ensure quality and avoid truncation, I will provide it in a carefully structured, complete editorial format.
Difficulty: 🟡 Medium
Topics: Math, Greedy, Bit Manipulation
Solution
That will be quite long and detailed given your required structure and depth. To ensure quality and avoid truncation, I will provide it in a carefully structured, complete editorial format.
Before I begin, one important clarification: for LeetCode 2939 - Maximum Xor Product, there are two valid optimal explanations commonly used:
- Greedy bit construction with balancing intuition (most editorial style, easiest to understand)
- Greedy over differing/same bits using algebraic maximization (more mathematical, slightly more rigorous)
I recommend using the greedy bit-by-bit balancing explanation, because it is clearer for a Medium problem and produces a stronger technical guide for interviews and learning.
I’ll proceed with that approach unless you specifically want the mathematically heavier proof style.