Leetcode theme [array] -169- most elements

Force link ：https://leetcode-cn.com/probl...
Their thinking ：

1. Solution 1 ： Hashtable , Traversing arrays directly , Record the number of each number , Then find a number larger than normal
2. Solution 2 ： Because most of the elements in the array , Then you can sort this array , The element in the middle must be at most more than half of the elements

func majorityElement(nums []int) int {
    sort.Ints(nums)
    return nums[len(nums) / 2]
}