simple summary

Author: jackzhenguo

README.md

@@ -1,3 +1,6 @@
+Important Notes:
+I would not write coding in Visual Studio, so you can visit solutions by two methonds. One is by my [Blog Column](http://blog.csdn.net/column/details/14761.html), and another direct way is by questions index.
+
 ## About it
 Algorithm is tool for exercising our thinking patterns, and we can strengthen the ability to convert mathematical models into code. Whether you are engaged in artificial intelligence, in-depth learning, or advanced software development, no matter what language you use, such as C#,C++,Java,python,etc., and applying the most appropriate algorithm is always the most important point when faced with a specific problem. *Every problem in practice has its own particularity, which makes it not that easier to choose the most appropriate algorithm.* How do we write the algorithm that most efficiently apply to a practical issue? **Yes, LeetCode.** You can write an algorithm until it accepted, and do not rush to do the next question, and learn the solution someone else has submitted, `so you can solve the problem from the ability of solving the problem to that fast and efficient realm`. 
 
@@ -30,4 +33,176 @@ solutions using C# for leetcode according to tags of questions
 4. Push to the branch: git push origin my-leetcode-csharp
 5. Submit a pull request and enjoy! :D
 
+## Array Tag:
+35	|[Search Insert Position](http://blog.csdn.net/daigualu/article/details/66995617)
+118|	[Pascal's Triangle](http://blog.csdn.net/daigualu/article/details/67006388)
+119	|[Pascal's Triangle II](http://blog.csdn.net/daigualu/article/details/67069088)
+414|	[Third Maximum Number](http://blog.csdn.net/daigualu/article/details/68063481)
+121|	[Best Time to Buy and Sell Stock](http://blog.csdn.net/daigualu/article/details/71038726)
+66|	[Plus One](http://blog.csdn.net/daigualu/article/details/71056697)
+26	|[Remove Duplicates from Sorted Array](http://blog.csdn.net/daigualu/article/details/71064545)
+27|	[Remove Element](http://blog.csdn.net/daigualu/article/details/71104482)
+122	|[Best Time to Buy and Sell Stock II](http://blog.csdn.net/daigualu/article/details/71104584)
+268	|[Missing Number](http://blog.csdn.net/daigualu/article/details/69220202)
+217|	[Contains Duplicate](http://blog.csdn.net/daigualu/article/details/71123673)
+532|	[K-diff Pairs in an Array](http://blog.csdn.net/daigualu/article/details/71129806)
+189|	[Rotate Array](http://blog.csdn.net/daigualu/article/details/71159419)
+169	|[Majority Element](http://blog.csdn.net/daigualu/article/details/69937729)
+167	|[Two Sum II - Input array is sorted](http://blog.csdn.net/daigualu/article/details/69787679)
+88	|[Merge Sorted Array](http://blog.csdn.net/daigualu/article/details/69367334)
+53	|[Maximum Subarray](http://blog.csdn.net/daigualu/article/details/69936974)
+485	|[Max Consecutive Ones](http://blog.csdn.net/daigualu/article/details/71216338)
+283	|[Move Zeroes](http://blog.csdn.net/daigualu/article/details/69329038)
+448	|[Find All Numbers Disappeared in an Array](http://blog.csdn.net/daigualu/article/details/71168875)
+1|	[Two Sum](http://blog.csdn.net/daigualu/article/details/68957096)
+219	|[Contains Duplicate II](http://blog.csdn.net/daigualu/article/details/71166985)
+566| [Reshape the Matrix](http://blog.csdn.net/daigualu/article/details/71275325)	
+561| [Array Partition I](http://blog.csdn.net/daigualu/article/details/71273279)
+
+## Binary Search:	
+367	|[Valid Perfect Square](http://blog.csdn.net/daigualu/article/details/69787644)|	37.8%|	Easy
+270|	Closest Binary Search Tree Value| 	38.8%|	Easy
+167	|[Two Sum II - Input array is sorted](http://blog.csdn.net/daigualu/article/details/69787679)	|47.4%|	Easy
+441	|[Arranging Coins](http://blog.csdn.net/daigualu/article/details/69788500)|	36.0%|	Easy
+35|	[Search Insert Position](http://blog.csdn.net/daigualu/article/details/66995617)|	39.3%|	Easy
+374	|Guess Number Higher or Lower	|34.4%|	Easy
+69	|Sqrt(x)	|27.4%|	Easy|
+278|	[First Bad Version](http://blog.csdn.net/daigualu/article/details/69802371)	|24.8%	|Easy
+475|	Heaters	|29.7%|	Easy
+350	|[Intersection of Two Arrays II](http://blog.csdn.net/daigualu/article/details/69666351)	|44.1%|	Easy
+349|	[Intersection of Two Arrays](http://blog.csdn.net/daigualu/article/details/69666198)|	46.5%|	Easy
+
+## Dynamic Programming
+53|	[Maximum Subarray](http://blog.csdn.net/daigualu/article/details/69936974)|	39.2%|	Easy|
+169|	[Majority Element](http://blog.csdn.net/daigualu/article/details/69937729)|	45.6%|	Easy|
+	303|	[Range Sum Query - Immutable](http://blog.csdn.net/daigualu/article/details/69938986)|	27.8%|	Easy|
+276	|Paint Fence |	34.1%|	Easy|
+523	|[Continuous Subarray Sum](http://blog.csdn.net/daigualu/article/details/69941770)|	21.6%|	Easy|
+256|	Paint House |	45.9%|	Easy|
+198|	[House Robber](http://blog.csdn.net/daigualu/article/details/69946684)|	38.1%|	Easy|
+121|	Best Time to Buy and Sell Stock|40.1%	|Easy|
+70|	Climbing Stairs	|39.2%|	Easy|
+
+
+## HashTable:
+136	|[Single number](http://blog.csdn.net/daigualu/article/details/68921131)
+1| [Two Sum](http://blog.csdn.net/daigualu/article/details/68957096)
+447	|[Number of Boomerangs](http://blog.csdn.net/daigualu/article/details/68958818)
+463	|[Island Perimeter](http://blog.csdn.net/daigualu/article/details/68959304) 
+409	|[Longest Palindrome](http://blog.csdn.net/daigualu/article/details/69053267)
+438	|[Find All Anagrams in a String](http://blog.csdn.net/daigualu/article/details/71339879)
+389	|[Find the Difference](http://blog.csdn.net/daigualu/article/details/71450823)
+350	|[Intersection of Two Arrays II](http://blog.csdn.net/daigualu/article/details/69666351)
+349	|	[Intersection of Two Arrays](http://blog.csdn.net/daigualu/article/details/69666198)
+500	|[Keyboard Row](http://blog.csdn.net/daigualu/article/details/71447614)
+217|	[Contains Duplicate](http://blog.csdn.net/daigualu/article/details/71123673)
+204	|	[Count Primes](http://blog.csdn.net/daigualu/article/details/71366483)
+202	|	[Happy Number](http://blog.csdn.net/daigualu/article/details/71433906)
+219	|[Contains Duplicate II](http://blog.csdn.net/daigualu/article/details/71166985)
+242	|[Valid Anagram](http://blog.csdn.net/daigualu/article/details/71358552)
+290	|[Word Pattern](http://blog.csdn.net/daigualu/article/details/71358552)
+205	|[Isomorphic Strings](http://blog.csdn.net/daigualu/article/details/71357419)
+
+## Linked List
+
+141	|	[Linked List Cycle](http://blog.csdn.net/daigualu/article/details/69055927)
+237	|		[Delete Node in a Linked List](http://blog.csdn.net/daigualu/article/details/69055991)
+83	|		[Remove Duplicates from Sorted List](http://blog.csdn.net/daigualu/article/details/69093677)
+160	|	[Intersection of Two Linked Lists](http://blog.csdn.net/daigualu/article/details/69526717)
+203	|[Remove Linked List Elements](http://blog.csdn.net/daigualu/article/details/69389243)
+206	|	[Reverse Linked List](http://blog.csdn.net/daigualu/article/details/69372119)
+234	|	[Palindrome Linked List](http://blog.csdn.net/daigualu/article/details/69388513)
+21	|		[Merge Two Sorted Lists](http://blog.csdn.net/daigualu/article/details/69565969)
+
+## Math:
+231	|	[Power of Two](http://blog.csdn.net/daigualu/article/details/69102931)
+268|	[Missing Number](http://blog.csdn.net/daigualu/article/details/69220202)
+507	|	[Perfect Number](http://blog.csdn.net/daigualu/article/details/69233798)
+9|		[Palindrome Number](http://blog.csdn.net/daigualu/article/details/72717009)
+453	|	[Minimum Moves to Equal Array Elements](http://blog.csdn.net/daigualu/article/details/72354061)
+13	|Roman to Integer
+441	|[Arranging Coins]()
+415|	[Add Strings](http://blog.csdn.net/daigualu/article/details/72356377)
+400	|[Nth Digit](http://blog.csdn.net/daigualu/article/details/72572244)
+367	|Valid Perfect Square
+66|	[Plus One](http://blog.csdn.net/daigualu/article/details/71056697)
+7|	[Reverse Integer](http://blog.csdn.net/daigualu/article/details/72464418)	
+204	|[Count Primes](http://blog.csdn.net/daigualu/article/details/71366483)
+202	|[Happy Number](http://blog.csdn.net/daigualu/article/details/71433906)
+172	|Factorial Trailing Zeroes	
+171	|[Excel Sheet Column Number](http://blog.csdn.net/daigualu/article/details/72717145)	
+168	|[Excel Sheet Column Title](http://blog.csdn.net/daigualu/article/details/72638706)	
+258	|Add Digits	
+263	|Ugly Number	
+69|	[Sqrt(x)](http://blog.csdn.net/daigualu/article/details/72578272)	
+67	|[Add Binary](http://blog.csdn.net/daigualu/article/details/72638937)	
+246	|Strobogrammatic Number 	
+326	|Power of Three	
+
+## Stack:
+225|[Implement Stack using Queues](http://blog.csdn.net/daigualu/article/details/70183272)|	32.0%|	Easy
+496|	[Next Greater Element I](http://blog.csdn.net/daigualu/article/details/70185529)	|57.5%	|Easy
+155|	[Min Stack](http://blog.csdn.net/daigualu/article/details/70185814)|	27.4%|	Easy
+232|	[Implement Queue using Stacks](http://blog.csdn.net/daigualu/article/details/70186010)|	35.8%|	Easy
+20|	[Valid Parentheses](http://blog.csdn.net/daigualu/article/details/69569622)|	32.9%|	Easy
+
+## String:
+
+58|	[Length of Last Word](http://blog.csdn.net/daigualu/article/details/69568460)|	31.5%|	Easy
+20	|[Valid Parentheses](http://blog.csdn.net/daigualu/article/details/69569622)	|32.8%	|Easy
+520	|[Detect Capital](http://blog.csdn.net/daigualu/article/details/69663210)|	52.5%|	Easy
+459	|[Repeated Substring Pattern](http://blog.csdn.net/daigualu/article/details/69663545)|	38.4%|	Easy
+434	|[Number of Segments in a String](http://blog.csdn.net/daigualu/article/details/69664369)	|37.0%	|Easy
+408	|Valid Word Abbreviation |	27.5%	|Easy
+13	|Roman to Integer	|44.6%|	Easy
+14	|[Longest Common Prefix](http://blog.csdn.net/daigualu/article/details/69665015)	|31.0%	|Easy
+383	|[Ransom Note](http://blog.csdn.net/daigualu/article/details/69665190)	|46.5%	|Easy
+521	|Longest Uncommon Subsequence I	|46.1%	|Easy
+345	|Reverse Vowels of a String|	37.9%	|Easy
+28	|Implement strStr()	|27.5%	|Easy
+344	|Reverse String|	58.2%|	Easy
+293	|Flip Game 	|54.8%	|Easy
+38	|Count and Say	|33.4%	|Easy
+157	|Read N Characters Given Read4 |	29.2%|	Easy
+541	|Reverse String II	|44.1%	|Easy
+125	|Valid Palindrome	|25.8%	|Easy
+67	|Add Binary	|31.3%	|Easy
+
+## Tree:
+107|	[Binary Tree Level Order Traversal II](http://blog.csdn.net/daigualu/article/details/70254459)|	39.0%|	Easy
+257	|[Binary Tree Paths](http://blog.csdn.net/daigualu/article/details/70340125)|	36.8%|	Easy
+501	|[Find Mode in Binary Search Tree](http://blog.csdn.net/daigualu/article/details/70341143)|	38.4%|	Easy
+437	|[Path Sum III](http://blog.csdn.net/daigualu/article/details/70342773)|	39.3%	|Easy
+404	|[Sum of Left Leaves](http://blog.csdn.net/daigualu/article/details/70482270)|	46.5%|	Easy
+112	|[Path Sum](http://blog.csdn.net/daigualu/article/details/70482285)|	33.5%	|Easy
+110	|[Balanced Binary Tree](http://blog.csdn.net/daigualu/article/details/70482667)|	36.8%	|Easy
+108	|[Convert Sorted Array to Binary Search Tree](http://blog.csdn.net/daigualu/article/details/70485834)|	41.3%|	Easy
+543	|[Diameter of Binary Tree](http://blog.csdn.net/daigualu/article/details/70491447)|	42.3%|	Easy
+226	|[Invert Binary Tree](http://blog.csdn.net/daigualu/article/details/70536685)|	50.8%|	Easy
+235	|[Lowest Common Ancestor of a Binary Search Tree](http://blog.csdn.net/daigualu/article/details/70539096)|	38.5%|	Easy
+104	|[Maximum Depth of Binary Tree](http://blog.csdn.net/daigualu/article/details/70541420)|	51.7%|	Easy
+111|	[Minimum Depth of Binary Tree](http://blog.csdn.net/daigualu/article/details/70543969)|	32.7%	|Easy
+101	|[Symmetric Tree](http://blog.csdn.net/daigualu/article/details/70544774)|	37.9%|	Easy
+100|	[Same Tree](http://blog.csdn.net/daigualu/article/details/70254478)|	45.8%|	Easy
+
+## Two Pointers:
+345	|[Reverse Vowels of a String](http://blog.csdn.net/daigualu/article/details/69257693)
+125	|[Valid Palindrome](http://blog.csdn.net/daigualu/article/details/69265381)
+283|	[Move Zeroes](http://blog.csdn.net/daigualu/article/details/69329038)	
+88	|[Merge Sorted Array](http://blog.csdn.net/daigualu/article/details/69367334)	
+234|	[Palindrome Linked List](http://blog.csdn.net/daigualu/article/details/69388513)	
+349	|Intersection of Two Arrays	
+167	|[Two Sum II - Input array is sorted](http://blog.csdn.net/daigualu/article/details/69787679)
+350|	Intersection of Two Arrays II	
+344|	Reverse String	
+28|	Implement strStr()	
+27	|Remove Element	
+26|	Remove Duplicates from Sorted Array	
+141|	Linked List Cycle	
+532|	K-diff Pairs in an Array
+
+
+
+
+