题目要求
Given a non-empty, singly linked list with head node head
, return a middle node of linked list.
If there are two middle nodes, return the second middle node.
题目分析及思路
题目给出一个非空单链表,要求返回链表单的中间结点。可以将链表中的结点保存在list中,直接获取中间结点的索引即可。
python代码
# Definition for singly-linked list.
# class ListNode:
# def __init__(self, x):
# self.val = x
# self.next = None
class Solution:
def middleNode(self, head: ‘ListNode‘) -> ‘ListNode‘:
l = [head]
while l[-1].next:
l.append(l[-1].next)
return l[len(l) // 2]
原文地址:https://www.cnblogs.com/yao1996/p/10360948.html
时间: 2024-10-18 03:29:49