EvanMeetTheWorld

摘要： Base question: LC543 diameter of binary tree, LC1245 tree diameter... 阅读全文

posted @ 2020-11-04 11:25 EvanMeetTheWorld 阅读(37) 评论(0) 推荐(0)

摘要： Given an undirected tree, return it’s diameter, which is the numbe... 阅读全文

posted @ 2020-11-04 10:47 EvanMeetTheWorld 阅读(26) 评论(0) 推荐(0)

摘要： the defination of diameter of binary tree is the longest path(the ... 阅读全文

posted @ 2020-11-04 09:19 EvanMeetTheWorld 阅读(21) 评论(0) 推荐(0)

摘要： deep copy of a N-ary. we met many problems like this: clone someth... 阅读全文

posted @ 2020-11-04 06:35 EvanMeetTheWorld 阅读(36) 评论(0) 推荐(0)

摘要： Deep copy of a connected undirected graph, and there are some simi... 阅读全文

posted @ 2020-11-04 06:17 EvanMeetTheWorld 阅读(18) 评论(0) 推荐(0)

摘要： Preorder: /*// Definition for a Node.class Node { public int va... 阅读全文

posted @ 2020-11-04 00:41 EvanMeetTheWorld 阅读(26) 评论(0) 推荐(0)

摘要：他是计算机系统内存管理的一种技术。它使得应用程序认为它拥有连续的可用的内存（一个连续完整的地址空间），而实际上，它通常是被分隔成多个... 阅读全文

posted @ 2020-11-03 23:18 EvanMeetTheWorld 阅读(56) 评论(0) 推荐(0)

摘要： also knowns as hamming distance: public class Solution { // you... 阅读全文

posted @ 2020-11-03 21:33 EvanMeetTheWorld 阅读(18) 评论(0) 推荐(0)

摘要： Preorder: 迭代写法： class Solution { public List preorderTraversal(... 阅读全文

posted @ 2020-11-03 01:57 EvanMeetTheWorld 阅读(25) 评论(0) 推荐(0)

摘要： **JDBC是用于在Java语言编程中与数据库连接的API。**有了JDBC提供的库，我们就能连接到数据库创建SQL语句，在数据库... 阅读全文

posted @ 2020-11-02 02:06 EvanMeetTheWorld 阅读(109) 评论(0) 推荐(0)