Major Element

Posted 2020-11-07 amazingzoe

Given an array of size n, find the majority element. The majority element is the element that appears more than ? n/2 ? times.

You may assume that the array is non-empty and the majority element always exist in the array.

Example 1:

Input: [3,2,3]
Output: 3

Example 2:

Input: [2,2,1,1,1,2,2]
Output: 2

class Solution {
    public int majorityElement(int[] nums) {
        int result = 0, count = 0;
        for (int i = 0; i < nums.length; i++) {
            if (count == 0) {
                result = nums[i];
            }
            
            if (nums[i] == result) {
                count++;
            } else {
                count--;  
            }
        }
        
        return result;
    }
}