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Leetcode Problem 229. Majority Element II
229. Majority Element II
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Leetcode Solutions
Boyer-Moore Voting Algorithm for Finding Majority Elements
Solution Idea
Algorithm Steps
Code Implementation
Complexity Analysis
Initialize two candidate variables and two counters to
None
and
0
respectively.
Iterate through the array, updating the candidates and counters as follows:
If the current element is equal to one of the candidates, increment the corresponding counter.
If one of the counters is zero, set the corresponding candidate to the current element and reset the counter to one.
If the current element is different from both candidates, decrement both counters.
After the first pass, initialize a list to hold the result.
Perform a second pass to count the occurrences of the two candidates.
If a candidate's occurrence is more than
⌊n/3⌋
times, add it to the result list.
Return the result list.
Hash Map Counting for Finding Majority Elements
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