* @lc app=leetcode id=229 lang=java
* [229] Majority Element II
public List<Integer> majorityElement(int[] nums) {
List<Integer> res = new ArrayList<Integer>();
if (nums == null || nums.length == 0)
int n1 = nums[0], n2 = nums[0], cnt1 = 0, cnt2 = 0, len = nums.length;
for (int i = 0; i < len; i++) {
for (int i = 0; i < len; i++) {
if (cnt2 > len / 3 && n1 != n2)