题解 | #输出单向链表中倒数第k个结点#

import java.util.Scanner;

class ListNode {
    int val;
    ListNode next;
    ListNode() {};
    ListNode(int val) {
        this.val = val;
    }
    ListNode(int val, ListNode next) {
        this.val = val;
        this.next = next;
    }

}
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        while (in.hasNext()) {
            int n = in.nextInt();
            int[] nums = new int[n];
            for (int i = 0 ; i < n ; ++i) {
                nums[i] = in.nextInt();
            }
            int k = in.nextInt();

            System.out.println(nums[n - k]);
        }




    }
}