LeetCode

LeetCode Algorithm

(Notes: 这里参考陈浩的结构，但是采用主题式学习法,对题目进行分类)

#	Title	Difficulty	Solution_Go	Solution_Cpp
1	Two Sum	Easy	Go	C++
2	Add Two Numbers	Medium
3	Longest Substring Without Repeating Characters	Medium	done
4	Median of Two Sorted Arrays	Hard
5	Longest Palindromic Substring	Medium	done
6	ZigZag Conversion	Easy
7	Reverse Integer	Easy
8	String to Integer (atoi)	Easy
9	Palindrome Number	Easy
10	Regular Expression Matching	Hard
11	Container With Most Water	Medium
12	Integer to Roman	Medium
13	Roman to Integer	Easy
14	Longest Common Prefix	Easy
15	3Sum	Medium	done
16	3Sum Closest	Medium
17	Letter Combinations of a Phone Number	Medium
18	4Sum	Medium		done
19	Remove Nth Node From End of List	Easy	done
20	Valid Parentheses	Easy		done
21	Merge Two Sorted Lists	Easy	done
22	Generate Parentheses	Medium
23	Merge k Sorted Lists	Hard	done
24	Swap Nodes in Pairs	Medium
25	Reverse Nodes in k-Group	Hard	done
26	Remove Duplicates from Sorted Array	Easy
27	Remove Element	Easy
28	Implement strStr()	Easy
29	Divide Two Integers	Medium
30	Substring with Concatenation of All Words	Hard
31	Next Permutation	Medium
32	Longest Valid Parentheses	Hard
33	Search in Rotated Sorted Array	Hard	done
34	Search for a Range	Medium
35	Search Insert Position	Medium
36	Valid Sudoku	Easy
37	Sudoku Solver	Hard
38	Count and Say	Easy
39	Combination Sum	Medium
40	Combination Sum II	Medium
41	First Missing Positive	Hard
42	Trapping Rain Water	Hard	done
43	Multiply Strings	Medium
44	Wildcard Matching	Hard
45	Jump Game II	Hard
46	Permutations	Medium	done
47	Permutations II	Hard
48	Rotate Image	Medium
49	Group Anagrams	Medium
50	"Pow(x, n)"	Medium
51	N-Queens	Hard
52	N-Queens II	Hard
53	Maximum Subarray	Medium
54	Spiral Matrix	Medium	done
55	Jump Game	Medium
56	Merge Intervals	Hard
57	Insert Interval	Hard
58	Length of Last Word	Easy
59	Spiral Matrix II	Medium
60	Permutation Sequence	Medium
61	Rotate List	Medium
62	Unique Paths	Medium
63	Unique Paths II	Medium
64	Minimum Path Sum	Medium
65	Valid Number	Easy
66	Plus One	Easy
67	Add Binary	Easy
68	Text Justification	Hard
69	Sqrt(x)	Medium
70	Climbing Stairs	Easy
71	Simplify Path	Medium
72	Edit Distance	Hard
73	Set Matrix Zeroes	Medium
74	Search a 2D Matrix	Medium
75	Sort Colors	Medium
76	Minimum Window Substring	Hard
77	Combinations	Medium
78	Subsets	Medium
79	Word Search	Medium
80	Remove Duplicates from Sorted Array II	Medium
81	Search in Rotated Sorted Array II	Medium
82	Remove Duplicates from Sorted List II	Medium	done
83	Remove Duplicates from Sorted List	Easy	done
84	Largest Rectangle in Histogram	Hard
85	Maximal Rectangle	Hard
86	Partition List	Medium
87	Scramble String	Hard
88	Merge Sorted Array	Easy
89	Gray Code	Medium
90	Subsets II	Medium
91	Decode Ways	Medium
92	Reverse Linked List II	Medium	done
93	Restore IP Addresses	Medium
94	Binary Tree Inorder Traversal	Medium
95	Unique Binary Search Trees II	Medium
96	Unique Binary Search Trees	Medium
97	Interleaving String	Hard
98	Validate Binary Search Tree	Medium
99	Recover Binary Search Tree	Hard
100	Same Tree	Easy
101	Symmetric Tree	Easy
102	Binary Tree Level Order Traversal	Easy
103	Binary Tree Zigzag Level Order Traversal	Medium	done
104	Maximum Depth of Binary Tree	Easy
105	Construct Binary Tree from Preorder and Inorder Traversal	Medium
106	Construct Binary Tree from Inorder and Postorder Traversal	Medium
107	Binary Tree Level Order Traversal II	Easy
108	Convert Sorted Array to Binary Search Tree	Medium
109	Convert Sorted List to Binary Search Tree	Medium
110	Balanced Binary Tree	Easy
111	Minimum Depth of Binary Tree	Easy
112	Path Sum	Easy
113	Path Sum II	Medium
114	Flatten Binary Tree to Linked List	Medium
115	Distinct Subsequences	Hard
116	Populating Next Right Pointers in Each Node	Medium
117	Populating Next Right Pointers in Each Node II	Hard
118	Pascal's Triangle	Easy
119	Pascal's Triangle II	Easy
120	Triangle	Medium
121	Best Time to Buy and Sell Stock	Medium	done
122	Best Time to Buy and Sell Stock II	Medium
123	Best Time to Buy and Sell Stock III	Hard
124	Binary Tree Maximum Path Sum	Hard
125	Valid Palindrome	Easy
126	Word Ladder II	Hard
127	Word Ladder	Medium
128	Longest Consecutive Sequence	Hard
129	Sum Root to Leaf Numbers	Medium
130	Surrounded Regions	Medium
131	Palindrome Partitioning	Medium
132	Palindrome Partitioning II	Hard
133	Clone Graph	Medium
134	Gas Station	Medium
135	Candy	Hard
136	Single Number	Medium
137	Single Number II	Medium
138	Copy List with Random Pointer	Hard
139	Word Break	Medium
140	Word Break II	Hard
141	Linked List Cycle	Medium
142	Linked List Cycle II	Medium
143	Reorder List	Medium
144	Binary Tree Preorder Traversal	Medium
145	Binary Tree Postorder Traversal	Hard
146	LRU Cache	Hard	done
147	Insertion Sort List	Medium
148	Sort List	Medium
149	Max Points on a Line	Hard
150	Evaluate Reverse Polish Notation	Medium
151	Reverse Words in a String	Medium
152	Maximum Product Subarray	Medium
153	Find Minimum in Rotated Sorted Array	Medium
154	Find Minimum in Rotated Sorted Array II	Hard
155	Min Stack	Easy
156	Binary Tree Upside Down done	Medium
157	Read N Characters Given Read4 done	Easy
158	Read N Characters Given Read4 II - Call multiple times done	Hard
159	Longest Substring with At Most Two Distinct Characters done	Hard
160	Intersection of Two Linked Lists	Easy	done
161	One Edit Distancedone	Medium
162	Find Peak Element	Medium
163	Missing Ranges done	Medium
164	Maximum Gap	Hard
165	Compare Version Numbers	Easy
166	Fraction to Recurring Decimal	Medium
167	Two Sum II - Input array is sorted done	Medium
168	Excel Sheet Column Title	Easy
169	Majority Element	Easy
170	Two Sum III - Data structure design done	Easy
171	Excel Sheet Column Number	Easy
172	Factorial Trailing Zeroes	Easy
173	Binary Search Tree Iterator	Medium
174	Dungeon Game	Hard
179	Largest Number	Medium
186	Reverse Words in a String II done	Medium
187	Repeated DNA Sequences	Medium
188	Best Time to Buy and Sell Stock IV	Hard
189	Rotate Array	Easy
190	Reverse Bits	Easy
191	Number of 1 Bits	Easy
198	House Robber	Easy
199	Binary Tree Right Side View	Medium	done
200	Number of Islands	Medium	done
201	Bitwise AND of Numbers Range	Medium
202	Happy Number	Easy
203	Remove Linked List Elements	Easy	done
204	Count Primes	Easy
205	Isomorphic Strings	Easy
206	Reverse Linked List	Easy	done
207	Course Schedule	Medium
208	Implement Trie (Prefix Tree)	Medium
209	Minimum Size Subarray Sum	Medium
210	Course Schedule II	Medium
211	Add and Search Word - Data structure design	Medium
212	Word Search II	Hard
213	House Robber II	Medium
214	Shortest Palindrome	Hard
215	Kth Largest Element in an Array	Medium	done
216	Combination Sum III	Medium
217	Contains Duplicate	Easy
218	The Skyline Problem	Hard
219	Contains Duplicate II	Easy
220	Contains Duplicate III	Medium
221	Maximal Square	Medium
222	Count Complete Tree Nodes	Medium
223	Rectangle Area	Easy
224	Basic Calculator	Medium
225	Implement Stack using Queues	Medium
226	Invert Binary Tree	Easy
227	Basic Calculator II	Medium
228	Summary Ranges	Easy
229	Majority Element II	Medium
230	Kth Smallest Element in a BST	Medium
231	Power of Two	Easy
232	Implement Queue using Stacks	Easy
233	Number of Digit One	Medium
234	Palindrome Linked List	Easy
235	Lowest Common Ancestor of a Binary Search Tree	Easy
236	Lowest Common Ancestor of a Binary Tree	Medium
237	Delete Node in a Linked List	Easy	done
238	Product of Array Except Self	Medium
239	Sliding Window Maximum	Hard
240	Search a 2D Matrix II	Medium
241	Different Ways to Add Parentheses	Medium
242	Valid Anagram	Easy
257	Binary Tree Paths	Easy
258	Add Digits	Easy
260	Single Number III	Medium
263	Ugly Number	Easy
264	Ugly Number II	Medium
268	Missing Number	Medium
273	Integer to English Words	Medium
274	H-Index	Medium
275	H-Index II	Medium
278	First Bad Version	Easy
279	Perfect Squares	Medium
282	Expression Add Operators	Hard
283	Move Zeroes	Easy
284	Peeking Iterator	Medium
285	Inorder Successor in BST	Medium	done
287	Find the Duplicate Number	Hard
289	Game of Life	Medium
290	Word Pattern	Easy
292	Nim Game	Easy
295	Find Median from Data Stream	Hard
297	Serialize and Deserialize Binary Tree	Medium
299	Bulls and Cows	Easy
300	Longest Increasing Subsequence	Medium	done
301	Remove Invalid Parentheses	Hard
303	Range Sum Query - Immutable	Easy
304	Range Sum Query 2D - Immutable	Medium
306	Additive Number	Medium
307	Range Sum Query - Mutable	Medium
309	Best Time to Buy and Sell Stock with Cooldown	Medium
310	Minimum Height Trees	Medium
312	Burst Balloons	Hard
313	Super Ugly Number	Medium
315	Count of Smaller Numbers After Self	Hard
316	Remove Duplicate Letters	Hard
318	Maximum Product of Word Lengths	Medium
319	Bulb Switcher	Medium
321	Create Maximum Number	Hard
322	Coin Change	Medium
324	Wiggle Sort II	Medium
326	Power of Three	Easy
327	Count of Range Sum	Hard
328	Odd Even Linked List	Easy	done
329	Longest Increasing Path in a Matrix	Medium
330	Patching Array	Medium
331	Verify Preorder Serialization of a Binary Tree	Medium
332	Reconstruct Itinerary	Medium
334	Increasing Triplet Subsequence	Medium
336	Palindrome Pairs	Hard
337	House Robber III	Medium
338	Counting Bits	Medium
341	Flatten Nested List Iterator	Medium
342	Power of Four	Easy
343	Integer Break	Medium
344	Reverse String	Easy
345	Reverse Vowels of a String	Easy
347	Top K Frequent Elements	Medium
349	Intersection of Two Arrays	Easy
350	Intersection of Two Arrays II	Easy
357	Count Numbers with Unique Digits	Medium
367	Valid Perfect Square	Easy
371	Sum of Two Integers	Easy
376	Wiggle Subsequence	Medium
377	Combination Sum IV	Medium
380	Insert Delete GetRandom O(1)	Hard
381	Insert Delete GetRandom O(1) - Duplicates allowed	Hard
382	Linked List Random Node	Medium
383	Ransom Note	Easy
384	Shuffle an Array	Medium
385	Mini Parser	Medium
386	Lexicographical Numbers	Medium
387	First Unique Character in a String	Easy
388	Longest Absolute File Path	Medium
389	Find the Difference	Easy
390	Elimination Game	Medium
391	Perfect Rectangle	Hard
392	Is Subsequence	Medium
393	UTF-8 Validation	Medium
394	Decode String	Medium
395	Longest Substring with At Least K Repeating Characters	Medium
396	Rotate Function	Easy
397	Integer Replacement	Medium
398	Random Pick Index	Medium
399	Evaluate Division	Medium
400	Nth Digit	Medium
401	Binary Watch	Easy
402	Remove K Digits	Medium
403	Frog Jump	Hard
404	Sum of Left Leaves	Easy
405	Convert a Number to Hexadecimal	Easy
406	Queue Reconstruction by Height	Medium
409	Longest Palindrome	Easy
410	Split Array Largest Sum	Hard
412	Fizz Buzz	Easy
413	Arithmetic Slices	Medium
414	Third Maximum Number	Easy
415	Add Strings	Easy
416	Partition Equal Subset Sum	Medium
418	SentenceScreenFitting done	Easy
437	Path Sum III	Medium
438	Find all Anagrams in a string	Medium
449	Serialize and Deserialize BST	Medium
450	DeleteNodeInABST	Medium
463	Island Perimeter	Easy
477	Total Hamming Distance	Medium
494	Target Sum	Medium
497	Random Point in Non-overlapping Rectangles	Medium
509	Fibonacci Number	Easy
518	Coin Change 2	Medium
520	Detect Capital	Easy
532	K-diff Pairs in an Array	Easy
538	Convert BST to Greater Tree	Easy
543	Diameter of Binary Tree	Easy
547	Friend Circles	Medium
563	Binary Tree Tilt	Easy
572	Subtree of Another Tree	Easy
581	Shortest Unsorted Continuous Subarray	Easy
623	Add One Row to Tree	Medium
628	Maximum Product of Three Numbers	Easy
643	Maximum Average Subarray I	Easy
647	Palindromic Substrings	Medium
652	Find Duplicate Subtrees	Medium
655	Print Binary Tree	Medium
661	Image Smoother	Easy
662	Maximum Width of Binary Tree	Medium
665	Non-decreasing Array	Easy
671	Second Minimum Node In a Binary Tree	Easy
674	Longest Continuous Increasing Subsequence	Easy
684	Redundant Connection	Medium
687	Longest Univalue Path	Easy
695	Max Area of Island	Medium
712	Minimum ASCII Delete Sum for Two Strings	Medium
714	Best Time to Buy and Sell Stock with Transaction Fee	Medium
717	1-bit and 2-bit Characters	Easy
721	Accounts Merge	Medium
746	Min Cost Climbing Stairs	Easy
747	Largest Number At Least Twice of Others	Easy
771	Jewels and Stones	Easy
804	Unique Morse Code Words	Easy
820	Short Encoding of Words	Medium
830	Positions of Large Groups	Easy
837	Most Common Word	Easy
844	Backspace String Compare	Easy
849	Maximize Distance to Closest Person	Easy
852	Peak Index in a Mountain Array	Easy
858	Mirror Reflection	Medium
859	Buddy Strings	Easy
876	Middle of the Linked List	Easy	done
905	Sort Array By Parity	Easy
914	X of a Kind in a Deck of Cards	Easy
922	Sort Array By Parity II	Easy
929	Unique Email Addresses	Easy
931	Minimum Falling Path Sum	Medium
933	Number of Recent Calls	Easy
941	Valid Mountain Array	Easy
950	Reveal Cards In Increasing Order	Medium
951	Flip Equivalent Binary Trees	Medium
958	Check Completeness of a Binary Tree	Medium
961	N-Repeated element in size 2N Array	Easy
969	Pancake Sorting	Medium
971	Flip Binary Tree To Match Preorder Traversal	Medium
976	Largest Perimeter Triangle	Easy
977	Squares of a Sorted Array	Easy
978	Longest Turbulent Subarray	Medium
979	Distribute Coins in Binary Tree	Medium
980	Unique Paths III	Hard
981	Time Based Key-Value Store	Medium
982	Triples with Bitwise AND Equal To Zero	Hard
983	Minimum Cost For Tickets	Medium
984	String Without AAA or BBB	Easy
985	Sum of Even Numbers After Queries	Easy
986	Interval List Intersections	Medium
987	Vertical Order Traversal of a Binary Tree	Medium
988	Smallest String Starting From Leaf	Medium
989	Add to Array-Form of Integer	Easy
990	Satisfiability of Equality Equations	Medium
991	Broken Calculator	Medium
993	Cousins in Binary Tree	Easy
1024	Video Stitching	Medium
1028	Recover a Tree From Preorder Traversal	Hard
1029	Two City Scheduling	Easy
1030	Matrix Cells in Distance Order	Easy
1071	Greatest Common Divisor of Strings	Easy
1170	Compare Strings by Frequency of the Smallest Character	Easy
1207	Unique Number of Occurrences	Easy
1333	Filter Restaurants by Vegan-Friendly, Price and Distance	Medium
1353	Maximum Number of Events That Can Be Attended	Medium
1376	Time Needed to Inform All Employees	Medium
1460	Make Two Arrays Equal by Reversing Sub-arrays	Easy
1464	Maximum Product of Two Elements in an Array	Easy
1470	Shuffle the Array	Easy
1513	Number of Substrings With Only 1s	Medium
1523	Count Odd Numbers in an Interval Range	Easy
1524	Number of Sub-arrays With Odd Sum	Medium
1525	Number of Good Ways to Split a String	Medium
1535	Find the Winner of an Array Game	Medium
1541	Minimum Insertions to Balance a Parentheses String	Medium
1550	Three Consecutive Odds	Easy
1551	Minimum Operations to Make Array Equal	Medium
1556	Thousand Separator	Easy
1573	Number of Ways to Split a String	Medium
1605	Find Valid Matrix Given Row and Column Sums	Medium
1732	Find the Highest Altitude	Easy
1733	Minimum Number of People to Teach	Medium
1734	Decode XORed Permutation	Medium
1748	Sum of Unique Elements	Easy
1749	Maximum Absolute Sum of Any Subarray	Medium
1750	Minimum Length of String After Deleting Similar Ends	Medium
1751	Maximum Number of Events That Can Be Attended II	Hard
1752	Check if Array Is Sorted and Rotated	Easy
1753	Maximum Score From Removing Stones	Medium
1754	Largest Merge Of Two Strings	Medium
1755	Closest Subsequence Sum	Hard
1758	Minimum Changes To Make Alternating Binary String	Easy
1759	Count Number of Homogenous Substrings	Medium
1760	Minimum Limit of Balls in a Bag	Medium
1761	Minimum Degree of a Connected Trio in a Graph	Hard
1763	Longest Nice Substring	Easy
1784	Check if Binary String Has at Most One Segment of Ones	Easy
1785	Minimum Elements to Add to Form a Given Sum	Medium
1786	Number of Restricted Paths From First to Last Node	Medium

ref_shell

cat README.md | awk -F '|' '{print "| |"$2"|",$3"|",$5,"|| |"}' > my.md

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