摘要: 题目描述: 方法一:深度优先(官方题解) class Codec: def serialize(self, root): """Encodes a tree to a single string. :type root: TreeNode :rtype: str """ def rserialize 阅读全文
posted @ 2019-10-16 20:27 oldby 阅读(132) 评论(0) 推荐(0) 编辑
摘要: 题目描述: 方法一:排序 O(nlogn) 超时 class MedianFinder: def __init__(self): """ initialize your data structure here. """ self.list = [] def addNum(self, num: int 阅读全文
posted @ 2019-10-16 16:17 oldby 阅读(151) 评论(0) 推荐(0) 编辑
摘要: 题目描述: 方法:记录前一次的数值 class PeekingIterator: def __init__(self, iterator): """ Initialize your data structure here. :type iterator: Iterator """ self.iter 阅读全文
posted @ 2019-10-16 11:10 oldby 阅读(215) 评论(0) 推荐(0) 编辑