题解 | #出现次数大于等于数组长度一半的数#

import java.util.Arrays;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int[] nums = new int[n];
        for (int i = 0; i < n; i++) {
            nums[i] = in.nextInt();
        }
        System.out.println(helper(nums));
    }

    public static int helper(int[] nums) {
        Arrays.sort(nums);
        return nums[nums.length/2];
    }
}