题解 | #输出单向链表中倒数第k个结点#
输出单向链表中倒数第k个结点
http://www.nowcoder.com/practice/54404a78aec1435a81150f15f899417d
while True:
    try:
        n = int(input())
        lst = input().split()
        k = int(input())
        if k == 0:
            output = 0
        else:
            output = lst[-k]
        print(output)
    except:
        break