题解 | #输出单向链表中倒数第k个结点#

import java.util.Scanner;

// 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 sc = new Scanner(System.in);
        while(sc.hasNextInt()){
            int n = sc.nextInt();
            int[] arr = new int[n];
            for(int i=0; i<n; i++){
                arr[i] = sc.nextInt();
            }
            int k = sc.nextInt();
            if(k>n || k<=0){
                return;
            }
            System.out.println(arr[n-k]);
        }
    }
}