一、题目描述
输入一个链表,输出该链表中倒数第k个结点。
二、代码实现
# -*- coding:utf-8 -*-
# class ListNode:
# def __init__(self, x):
# self.val = x
# self.next = None
class Solution:
def FindKthToTail(self, head, k):
# write code here
if head == None: return None
p = head
q = head
while k-1:
if p.next == None: return None
p = p.next
k = k-1
while p.next:
p = p.next
q = q.next
return q