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----
-date: 2018-06-04
----
-
-The [Boyer-Moore algorithm for finding the majority of a sequence of elements](https://en.wikipedia.org/wiki/Boyer–Moore_majority_vote_algorithm) falls in the category of "very clever algorithms".
-
- int majorityElement(vector<int>& xs) {
- int count = 0;
- int maj = xs[0];
- for (auto x : xs) {
- if (x == maj) count++;
- else if (count == 0) maj = x;
- else count--;
- }
- return maj;
- }
-