LinkedIn TAG

List1	[leetcode]243. Shortest Word Distance最短单词距离	Two Pointers
	[leetcode]244. Shortest Word Distance II最短单词距离(允许连环call)	HashMap,  Merge Sort
	[leetcode]339. Nested List Weight Sum嵌套列表加权和	DFS, BFS
	[leetcode]364. Nested List Weight Sum II嵌套列表加权和II	DFS, BFS
	[leetcode]256. Paint House粉刷房子(三色可选)	DP
	[leetcode]265. Paint House II粉刷房子(K色可选)	DP
	[leetcode]170. Two Sum III - Data structure design两数之和III - 数据结构设计	HashMap
	[leetcode]272. Closest Binary Search Tree Value II二叉搜索树中最近的值2	Deque
	[leetcode]156.Binary Tree Upside Down颠倒二叉树	Tree,  Recurison, Iteration
	[leetcode]149. Max Points on a Line多点共线	HashMap
	[leetcode]380. Insert Delete GetRandom O(1)常数时间插入删除取随机值	HashMap, ArrayList
	[leetcode]254. Factor Combinations因式组合	Backtracking
	[leetcode]65. Valid Number 有效数值	String
	[leetcode]716. Max Stack 最大栈	Stack
	[leetcode]68. Text Justification文字对齐	String
List2	[leetcode]366. Find Leaves of Binary Tree捡树叶
	[leetcode]341. Flatten Nested List Iterator展开嵌套列表的迭代器
	[leetcode]50. Pow(x, n)求幂
	[leetcode]150. Evaluate Reverse Polish Notation逆波兰表示法
	[leetcode]53. Maximum Subarray最大子数组和
	[leetcode]297. Serialize and Deserialize Binary Tree 序列化与反序列化二叉树
	[leetcode]200. Number of Islands岛屿个数
	[leetcode]152. Maximum Product Subarray最大乘积子数组
	[leetcode]72. Edit Distance 最少编辑步数
	[leetcode]282. Expression Add Operators 表达式添加运算符
	[leetcode]56. Merge Intervals归并区间
	[leetcode]236. Lowest Common Ancestor of a Binary Tree二叉树最近公共祖先