题解 | #判断一个链表是否为回文结构#
判断一个链表是否为回文结构
https://www.nowcoder.com/practice/3fed228444e740c8be66232ce8b87c2f
# class ListNode: # def __init__(self, x): # self.val = x # self.next = None # # 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可 # # # @param head ListNode类 the head # @return bool布尔型 # class Solution: def isPail(self , head: ListNode) -> bool: # write code here this = head ll1 = [] while this: ll1.append(this.val) this = this.next ll2 = ll1.copy() ll2.reverse() if ll1==ll2: return True else: return False