输出单向链表中倒数第k个结点

不需要实现链表，当成数组就行

import java.util.Scanner;

public class Main{

    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        while(sc.hasNext()){
            int n = sc.nextInt();
            int[] list = new int[n];
            for(int i = 0; i < n; i++){
                list[i] = sc.nextInt();
            }
            int k = sc.nextInt();
            if(k <= 0 || k > n){
               System.out.println(0);
            }else{
               System.out.println(list[n - k]);
            }
        }

    }
}