题解 | #输出单向链表中倒数第k个结点#

import java.util.*;

public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        while(sc.hasNext()){
            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==0){
                System.out.println(0);
            }else{
                System.out.println(arr[n-k]);
            }
        }
    }
}