快慢指针 快指针先移到慢指针的前k个节点,然后快慢指针同时移动,当快指针到达链尾,慢指针即为倒数第k个节点。 # def __init__(self, x): # self.val = x # self.next = None # # @param pHead ListNode类 # @param k int整型 # @return ListNode类 # class Solution: def FindKthToTail(self , pHead: ListNode, k: int) -> ListNode: # write code here low,fast = pHead,pHe...