摘要: 21. class ListNode: def __init__(self,x): self.val = x self.next = None class Solution: def mergeTwoLists(self, l1, l2): res = pre = ListNode(0) while 阅读全文
posted @ 2019-11-28 09:27 liujy1 阅读(132) 评论(0) 推荐(0) 编辑