题目链接：http://codeforces.com/problemset/problem/892/A

具体的Java 中 sort实现降序排序：https://www.cnblogs.com/youpeng/p/10546797.html

Ac代码：

import java.util.Comparator;import java.util.Scanner;import static java.util.Arrays.sort;public class Main {    public static void main(String[] args) {        Scanner scanner = new Scanner(System.in);        while (scanner.hasNext()) {            int n = scanner.nextInt();            Integer[] arr = new Integer[n];            long sum = 0, x;            int max1, max2;            for (int i = 0; i < n; i++) {                x = scanner.nextInt();                sum += x;            }            for (int i = 0; i < n; i++) {                arr[i] = scanner.nextInt();            }            Comparator cmp = new Mycomparator();            sort(arr, cmp);            max1 = arr[0];            max2 = arr[1];            if (sum > max1 + max2) {                System.out.println("NO");            } else {                System.out.println("YES");            }        }    }}class Mycomparator implements Comparator
    
      {    @Override    public int compare(Integer a, Integer b) {        return a > b ? -1 : 1;    }}