Boyer-Moore Voting Algorithm

The Boyer-Moore Voting Algorithm technique is applied when tackling problems characterized by specific invariants in the problem state or constraints:

• Core Strategy: Maintain a single candidate and a counter, incrementing on a match and decrementing otherwise, to find a majority element in one pass with O(1) space.
• When to use: Look for opportunities where repeated re-computation can be replaced by maintaining monotonic properties, state windows, or relational pointers.
• Interview Signal: Demonstrating this pattern shows mastery of Greedy foundations, reducing worst-case algorithmic complexity.