lintcode与leetcode题目映射表

lintcode与leetcode有相似题目，参考https://www.1point3acres.com/bbs/thread-453640-1-1.html，由于原网页加载过慢，将其中各元素的iframe去掉，重新整理，得到下面的题目映射表。

LintCode  Num	LintCode Title	LeetCode Num	LeetCode Title	LeetCode Num	LeetCode Title
1	A + B Problem
2	Trailing Zeros	172	Factorial  Trailing Zeroes
3	Digit Counts	362	Design Hit Counter
4	Ugly Number II	264	Ugly Number II	263	Ugly Number
5	Kth Largest  Element	215	Kth  Largest Element in an Array	703	Kth  Largest Element in a Stream
6	Merge Two  Sorted Arrays	88	Merge Sorted Array	21	Merge Two Sorted  Lists
7	Binary Tree  Serialization	563	Binary Tree Tilt	257	Binary Tree Paths
8	Rotate String	796	Rotate String	767	Reorganize String
9	Fizz Buzz	412	Fizz Buzz
10	String  Permutation II	47	Permutations II	484	Find Permutation
11	Search  Range in Binary Search Tree	700	Search in  a Binary Search Tree	501	Find  Mode in Binary Search Tree
12	Min Stack	155	Min Stack	716	Max Stack
13	strStr
14	First  Position of Target	830	Positions of  Large Groups
15	Permutations	46	Permutations	47	Permutations II
16	Permutations II	47	Permutations II	46	Permutations
17	Subsets	78	Subsets	90	Subsets II
18	Subsets II	90	Subsets II	78	Subsets
20	Dices Sum
22	Flatten List	61	Rotate List	86	Partition List
24	LFU Cache	460	LFU Cache	146	LRU Cache
28	Search a 2D Matrix	74	Search a 2D Matrix	240	Search a 2D Matrix  II
29	Interleaving  String	97	Interleaving String	344	Reverse String
30	Insert Interval	57	Insert Interval	56	Merge Intervals
31	Partition Array	330	Patching Array	763	Partition Labels
32	Minimum  Window Substring	76	Minimum Window  Substring	727	Minimum  Window Subsequence
33	N-Queens	51	N-Queens	52	N-Queens II
34	N-Queens II	52	N-Queens II	51	N-Queens
35	Reverse Linked  List	206	Reverse Linked List	92	Reverse Linked  List II
36	Reverse Linked  List II	92	Reverse Linked  List II	206	Reverse Linked List
37	Reverse  3-digit Integer	7	Reverse Integer
38	Search a 2D  Matrix II	240	Search a 2D Matrix  II	74	Search a 2D Matrix
39	Recover  Rotated Sorted Array	33	Search in  Rotated Sorted Array	81	Search  in Rotated Sorted Array II
40	Implement  Queue by Two Stacks	232	Implement  Queue using Stacks
41	Maximum Subarray	53	Maximum Subarray	152	Maximum Product  Subarray
42	Maximum Subarray  II	53	Maximum Subarray	644	Maximum  Average Subarray II
43	Maximum Subarray  III	53	Maximum Subarray	644	Maximum  Average Subarray II
44	Minimum Subarray	53	Maximum Subarray	209	Minimum Size  Subarray Sum
45	Maximum  Subarray Difference	53	Maximum Subarray	539	Minimum Time  Difference
46	Majority Number	179	Largest Number	65	Valid Number
47	Majority Number II	229	Majority Element II	264	Ugly Number II
48	Majority Number  III	229	Majority Element II	264	Ugly Number II
49	Sort Letters by  Case	709	To Lower Case
50	Product  of Array Exclude Itself	238	Product of  Array Except Self
51	Previous  Permutation	31	Next Permutation	484	Find Permutation
52	Next Permutation	31	Next Permutation	46	Permutations
53	Reverse  Words in a String	151	Reverse Words  in a String	186	Reverse  Words in a String II
54	String to  Integer II	8	String to  Integer (atoi)	13	Roman to Integer
55	Compare Strings	796	Rotate String	854	K-Similar Strings
56	Two Sum	1	Two Sum
57	3Sum	15	3Sum	18	4Sum
58	4Sum	18	4Sum	15	3Sum
59	3Sum Closest	16	3Sum Closest
60	Search Insert  Position	35	Search Insert  Position
61	Search for a Range	34	Search for a Range
62	Search  in Rotated Sorted Array	33	Search in  Rotated Sorted Array	81	Search  in Rotated Sorted Array II
63	Search  in Rotated Sorted Array II	81	Search  in Rotated Sorted Array II	33	Search in  Rotated Sorted Array
64	Merge Sorted Array	88	Merge Sorted Array	23	Merge k Sorted  Lists
65	Median of  two Sorted Arrays	4	Median of  Two Sorted Arrays	33	Search in  Rotated Sorted Array
66	Binary  Tree Preorder Traversal	144	Binary  Tree Preorder Traversal	145	Binary  Tree Postorder Traversal
67	Binary  Tree Inorder Traversal	94	Binary  Tree Inorder Traversal	144	Binary  Tree Preorder Traversal
68	Binary  Tree Postorder Traversal	145	Binary  Tree Postorder Traversal	590	N-ary Tree  Postorder Traversal
69	Binary  Tree Level Order Traversal	102	Binary  Tree Level Order Traversal	107	Binary  Tree Level Order Traversal II
70	Binary  Tree Level Order Traversal II	107	Binary  Tree Level Order Traversal II	102	Binary  Tree Level Order Traversal
71	Binary  Tree Zigzag Level Order Traversal	103	Binary  Tree Zigzag Level Order Traversal	102	Binary  Tree Level Order Traversal
72	Construct  Binary Tree from Inorder and Postorder Traversal	106	Construct  Binary Tree from Inorder and Postorder Traversal	889	Construct  Binary Tree from Preorder and Postorder Traversal
73	Construct  Binary Tree from Preorder and Inorder Traversal	105	Construct  Binary Tree from Preorder and Inorder Traversal	889	Construct  Binary Tree from Preorder and Postorder Traversal
74	First Bad Version	278	First Bad Version
75	Find Peak Element	162	Find Peak Element	658	Find K Closest  Elements
76	Longest  Increasing Subsequence	300	Longest  Increasing Subsequence	673	Number  of Longest Increasing Subsequence
77	Longest  Common Subsequence	521	Longest  Uncommon Subsequence I	522	Longest  Uncommon Subsequence II
78	Longest Common  Prefix	14	Longest Common  Prefix	819	Most Common Word
79	Longest  Common Substring	14	Longest Common  Prefix	5	Longest  Palindromic Substring
80	Median
81	Data Stream Median
82	Single Number	136	Single Number	137	Single Number II
83	Single Number II	137	Single Number II	260	Single Number III
84	Single Number III	260	Single Number III	137	Single Number II
85	Insert  Node in a Binary Search Tree	701	Insert  into a Binary Search Tree	501	Find  Mode in Binary Search Tree
86	Binary  Search Tree Iterator	173	Binary  Search Tree Iterator	95	Unique  Binary Search Trees II
87	Remove  Node in Binary Search Tree	99	Recover  Binary Search Tree	501	Find  Mode in Binary Search Tree
88	Lowest Common  Ancestor	236	Lowest  Common Ancestor of a Binary Tree	819	Most Common Word
89	k Sum	1	Two Sum	18	4Sum
90	k Sum II	454	4Sum II	113	Path Sum II
91	Minimum  Adjustment Cost
92	Backpack
93	Balanced Binary  Tree	110	Balanced Binary  Tree	226	Invert Binary Tree
94	Binary  Tree Maximum Path Sum	124	Binary Tree  Maximum Path Sum	257	Binary Tree Paths
95	Validate  Binary Search Tree	98	Validate  Binary Search Tree	669	Trim a Binary  Search Tree
96	Partition List	86	Partition List	763	Partition Labels
97	Maximum  Depth of Binary Tree	104	Maximum  Depth of Binary Tree	111	Minimum  Depth of Binary Tree
98	Sort List	148	Sort List	61	Rotate List
99	Reorder List	143	Reorder List	61	Rotate List
100	Remove  Duplicates from Sorted Array	26	Remove  Duplicates from Sorted Array	80	Remove  Duplicates from Sorted Array II
101	Remove  Duplicates from Sorted Array II	80	Remove  Duplicates from Sorted Array II	26	Remove  Duplicates from Sorted Array
102	Linked List Cycle	141	Linked List Cycle	142	Linked List Cycle  II
103	Linked List  Cycle II	142	Linked List Cycle  II	141	Linked List Cycle
104	Merge k Sorted  Lists	23	Merge k Sorted  Lists	21	Merge Two Sorted  Lists
105	Copy  List with Random Pointer	138	Copy List  with Random Pointer
106	Convert  Sorted List to Balanced BST	109	Convert  Sorted List to Binary Search Tree	108	Convert  Sorted Array to Binary Search Tree
107	Word Break	139	Word Break	140	Word Break II
108	Palindrome  Partitioning II	132	Palindrome  Partitioning II	131	Palindrome  Partitioning
109	Triangle	120	Triangle	118	Pascal's Triangle
110	Minimum Path Sum	64	Minimum Path Sum	124	Binary Tree  Maximum Path Sum
111	Climbing Stairs	70	Climbing Stairs	746	Min Cost  Climbing Stairs
112	Remove  Duplicates from Sorted List	83	Remove  Duplicates from Sorted List	82	Remove  Duplicates from Sorted List II
113	Remove  Duplicates from Sorted List II	82	Remove  Duplicates from Sorted List II	83	Remove  Duplicates from Sorted List
114	Unique Paths	62	Unique Paths	63	Unique Paths II
115	Unique Paths II	63	Unique Paths II	62	Unique Paths
116	Jump Game	55	Jump Game	45	Jump Game II
117	Jump Game II	45	Jump Game II	55	Jump Game
118	Distinct  Subsequences	115	Distinct  Subsequences	392	Is Subsequence
119	Edit Distance	72	Edit Distance	161	One Edit Distance
120	Word Ladder	127	Word Ladder	126	Word Ladder II
121	Word Ladder II	126	Word Ladder II	127	Word Ladder
122	Largest  Rectangle in Histogram	84	Largest  Rectangle in Histogram	812	Largest Triangle  Area
123	Word Search	79	Word Search	212	Word Search II
124	Longest  Consecutive Sequence	128	Longest  Consecutive Sequence	298	Binary  Tree Longest Consecutive Sequence
125	Backpack II
126	Max Tree	100	Same Tree
127	Topological  Sorting	481	Magical String
128	Hash Function	396	Rotate Function
129	Rehashing
130	Heapify
131	Building Outline	773	Sliding Puzzle
132	Word Search II	212	Word Search II	79	Word Search
133	Longest Words	58	Length of Last Word	720	Longest Word  in Dictionary
134	LRU Cache	146	LRU Cache	460	LFU Cache
135	Combination Sum	39	Combination Sum	377	Combination Sum IV
136	Palindrome  Partitioning	131	Palindrome  Partitioning	132	Palindrome  Partitioning II
137	Clone Graph	133	Clone Graph	656	Coin Path
138	Subarray Sum	560	Subarray Sum  Equals K	523	Continuous  Subarray Sum
139	Subarray Sum  Closest	560	Subarray Sum  Equals K	16	3Sum Closest
140	Fast Power
141	Sqrt(x)	69	Sqrt(x)
142	O(1) Check  Power of 2
143	Sort Colors II	75	Sort Colors
144	Interleaving  Positive and Negative Numbers
145	Lowercase to  Uppercase
148	Sort Colors	75	Sort Colors	148	Sort List
149	Best  Time to Buy and Sell Stock	121	Best  Time to Buy and Sell Stock	188	Best  Time to Buy and Sell Stock IV
150	Best  Time to Buy and Sell Stock II	122	Best  Time to Buy and Sell Stock II	123	Best  Time to Buy and Sell Stock III
151	Best  Time to Buy and Sell Stock III	123	Best  Time to Buy and Sell Stock III	122	Best  Time to Buy and Sell Stock II
152	Combinations	77	Combinations	39	Combination Sum
153	Combination Sum II	40	Combination Sum II	216	Combination Sum III
154	Regular  Expression Matching	10	Regular  Expression Matching	439	Ternary  Expression Parser
155	Minimum  Depth of Binary Tree	111	Minimum  Depth of Binary Tree	104	Maximum  Depth of Binary Tree
156	Merge Intervals	56	Merge Intervals	57	Insert Interval
157	Unique Characters	62	Unique Paths	387	First  Unique Character in a String
158	Two Strings  Are Anagrams
159	Find  Minimum in Rotated Sorted Array	153	Find  Minimum in Rotated Sorted Array	154	Find  Minimum in Rotated Sorted Array II
160	Find  Minimum in Rotated Sorted Array II	154	Find  Minimum in Rotated Sorted Array II	153	Find  Minimum in Rotated Sorted Array
161	Rotate Image	48	Rotate Image	189	Rotate Array
162	Set Matrix Zeroes	73	Set Matrix Zeroes	474	Ones and Zeroes
163	Unique  Binary Search Trees	96	Unique Binary  Search Trees	95	Unique  Binary Search Trees II
164	Unique  Binary Search Trees II	95	Unique  Binary Search Trees II	96	Unique Binary  Search Trees
165	Merge Two  Sorted Lists	21	Merge Two Sorted  Lists	23	Merge k Sorted  Lists
166	Nth to Last  Node in List
167	Add Two Numbers	2	Add Two Numbers	445	Add Two Numbers II
168	Burst Balloons	312	Burst Balloons
169	Tower of Hanoi	231	Power of Two	342	Power of Four
170	Rotate List	61	Rotate List	788	Rotated Digits
171	Anagrams	49	Group Anagrams	242	Valid Anagram
172	Remove Element	27	Remove Element	722	Remove Comments
173	Insertion Sort  List	147	Insertion Sort List	708	Insert  into a Cyclic Sorted List
174	Remove  Nth Node From End of List	19	Remove  Nth Node From End of List	83	Remove  Duplicates from Sorted List
175	Invert Binary Tree	226	Invert Binary Tree	655	Print Binary Tree
176	Route  Between Two Nodes in Graph	25	Reverse Nodes in  k-Group
177	Convert  Sorted Array to Binary Search Tree With Minimal Height	108	Convert  Sorted Array to Binary Search Tree	109	Convert  Sorted List to Binary Search Tree
178	Graph Valid Tree	261	Graph Valid Tree
179	Update Bits
180	Binary  Representation	814	Binary Tree Pruning	257	Binary Tree Paths
181	Flip Bits
182	Delete Digits	788	Rotated Digits	402	Remove K Digits
183	Wood Cut
184	Largest Number	179	Largest Number	494	Target Sum
185	Matrix Zigzag  Traversal
186	Max Points on a  Line	149	Max Points on a  Line
187	Gas Station	134	Gas Station	824	Goat Latin
189	First Missing  Positive	41	First Missing  Positive	296	Best Meeting Point
190	Next Permutation  II	31	Next Permutation	47	Permutations II
191	Maximum  Product Subarray	152	Maximum Product  Subarray	53	Maximum Subarray
192	Wildcard Matching	44	Wildcard Matching
196	Find the  Missing Number	268	Missing Number	287	Find the  Duplicate Number
197	Permutation Index	47	Permutations II	46	Permutations
198	Permutation  Index II	47	Permutations II	46	Permutations
200	Longest  Palindromic Substring	5	Longest  Palindromic Substring	516	Longest  Palindromic Subsequence
201	Segment Tree Build
202	Segment Tree Query
203	Segment Tree  Modify
204	Singleton
205	Interval  Minimum Number	321	Create Maximum  Number	414	Third Maximum  Number
206	Interval Sum
207	Interval Sum II	113	Path Sum II
208	Assignment  Operator Overloading (C++ Only)
209	First  Unique Character in a String	387	First  Unique Character in a String	828	Unique Letter  String
211	String Permutation	484	Find Permutation	31	Next Permutation
212	Space Replacement	397	Integer Replacement
213	Implement Stack	28	Implement strStr()	225	Implement  Stack using Queues
215	Rate Limiter	359	Logger Rate Limiter	61	Rotate List
219	Insert  Node in Sorted Linked List	237	Delete Node  in a Linked List	147	Insertion Sort List
221	Add Two Numbers II	445	Add Two Numbers II	2	Add Two Numbers
223	Palindrome  Linked List	234	Palindrome Linked  List	369	Plus One Linked  List
227	Mock Hanoi  Tower by Stacks
228	Middle of  Linked List	876	Middle of the  Linked List	328	Odd Even Linked  List
231	Typeahead
232	Tiny Url
234	Webpage Crawler
236	Swap Bits
242	Convert  Binary Tree to Linked Lists by Depth	114	Flatten  Binary Tree to Linked List	426	Convert  Binary Search Tree to Sorted Doubly Linked List
243	Amicable Pair
245	Subtree
246	Binary Tree  Path Sum II	257	Binary Tree Paths	124	Binary Tree  Maximum Path Sum
247	Segment Tree  Query II
248	Count of  Smaller Number	315	Count  of Smaller Numbers After Self	327	Count of Range Sum
249	Count  of Smaller Number before itself	315	Count  of Smaller Numbers After Self
254	Drop Eggs
272	Climbing Stairs II	70	Climbing Stairs	746	Min Cost  Climbing Stairs
360	Sliding Window  Median	480	Sliding Window  Median	239	Sliding Window  Maximum
362	Sliding Window  Maximum	239	Sliding Window  Maximum	480	Sliding Window  Median
363	Trapping Rain  Water	42	Trapping Rain Water	407	Trapping Rain  Water II
364	Trapping Rain  Water II	407	Trapping Rain  Water II	42	Trapping Rain Water
365	Count 1 in Binary	338	Counting Bits	742	Closest  Leaf in a Binary Tree
366	Fibonacci
367	Expression Tree  Build
368	Expression  Evaluation	10	Regular  Expression Matching	282	Expression Add  Operators
369	Convert  Expression to Polish Notation
370	Convert  Expression to Reverse Polish Notation	150	Evaluate  Reverse Polish Notation
371	Print  Numbers by Recursion
372	Delete  Node in the Middle of Singly Linked List	237	Delete Node  in a Linked List	876	Middle of the  Linked List
373	Partition  Array by Odd and Even
374	Spiral Matrix	54	Spiral Matrix	59	Spiral Matrix II
375	Clone Binary Tree	110	Balanced Binary  Tree	226	Invert Binary Tree
376	Binary Tree Path  Sum	257	Binary Tree Paths	124	Binary Tree  Maximum Path Sum
378	Convert  Binary Search Tree to Doubly Linked List	426	Convert  Binary Search Tree to Sorted Doubly Linked List	114	Flatten  Binary Tree to Linked List
379	Reorder  array to construct the minimum number
380	Intersection  of Two Linked Lists	160	Intersection  of Two Linked Lists	349	Intersection  of Two Arrays
381	Spiral Matrix II	59	Spiral Matrix II	885	Spiral Matrix III
382	Triangle Count	120	Triangle
383	Container  With Most Water	11	Container With  Most Water
384	Longest  Substring Without Repeating Characters	3	Longest  Substring Without Repeating Characters	395	Longest  Substring with At Least K Repeating Characters
386	Longest  Substring with At Most K Distinct Characters	340	Longest  Substring with At Most K Distinct Characters	159	Longest  Substring with At Most Two Distinct Characters
387	The Smallest  Difference	389	Find the Difference
388	Permutation  Sequence	60	Permutation  Sequence	46	Permutations
389	Valid Sudoku	36	Valid Sudoku	593	Valid Square
390	Find Peak  Element II	162	Find Peak Element	503	Next Greater  Element II
391	Number  of Airplanes in the Sky	806	Number  of Lines To Write String	434	Number of  Segments in a String
392	House Robber	198	House Robber	213	House Robber II
393	Best  Time to Buy and Sell Stock IV	188	Best  Time to Buy and Sell Stock IV	122	Best  Time to Buy and Sell Stock II
394	Coins in a Line	149	Max Points on a  Line	322	Coin Change
395	Coins in a Line II	149	Max Points on a  Line	219	Contains Duplicate  II
396	Coins in a Line  III	149	Max Points on a  Line	220	Contains  Duplicate III
397	Longest  Increasing Continuous Subsequence	300	Longest  Increasing Subsequence	594	Longest  Harmonious Subsequence
398	Longest  Increasing Continuous subsequence II	300	Longest  Increasing Subsequence	674	Longest  Continuous Increasing Subsequence
399	Nuts &  Bolts Problem
400	Maximum Gap	164	Maximum Gap	670	Maximum Swap
401	Kth  Smallest Number in Sorted Matrix	378	Kth  Smallest Element in a Sorted Matrix	668	Kth  Smallest Number in Multiplication Table
402	Continuous  Subarray Sum	523	Continuous  Subarray Sum	525	Contiguous Array
403	Continuous  Subarray Sum II	523	Continuous  Subarray Sum	525	Contiguous Array
404	Subarray Sum II	560	Subarray Sum  Equals K	523	Continuous  Subarray Sum
405	Submatrix Sum
406	Minimum  Size Subarray Sum	209	Minimum Size  Subarray Sum	325	Maximum  Size Subarray Sum Equals k
407	Plus One	66	Plus One
408	Add Binary	67	Add Binary	868	Binary Gap
411	Gray Code	89	Gray Code
412	Candy	135	Candy	723	Candy Crush
413	Reverse Integer	7	Reverse Integer	344	Reverse String
414	Divide Two  Integers	29	Divide Two Integers	371	Sum of Two Integers
415	Valid Palindrome	125	Valid Palindrome	680	Valid Palindrome II
417	Valid Number	65	Valid Number	9	Palindrome Number
418	Integer to Roman	12	Integer to Roman	397	Integer Replacement
419	Roman to Integer	13	Roman to Integer	371	Sum of Two Integers
420	Count and Say	38	Count and Say	327	Count of Range Sum
421	Simplify Path	71	Simplify Path
422	Length of Last  Word	58	Length of Last Word
423	Valid Parentheses	20	Valid Parentheses	32	Longest Valid  Parentheses
424	Evaluate  Reverse Polish Notation	150	Evaluate  Reverse Polish Notation	399	Evaluate Division
425	Letter  Combinations of a Phone Number	17	Letter  Combinations of a Phone Number
426	Restore IP  Addresses	93	Restore IP  Addresses	468	Validate IP Address
427	Generate  Parentheses	22	Generate  Parentheses	20	Valid Parentheses
428	Pow(x, n)	50	Pow(x, n)
430	Scramble String	87	Scramble String	796	Rotate String
431	Connected  Component in Undirected Graph	323	Number  of Connected Components in an Undirected Graph
432	Find  the Weak Connected Component in the Directed Graph	323	Number  of Connected Components in an Undirected Graph
433	Number of Islands	200	Number of Islands	305	Number of Islands  II
434	Number of  Islands II	305	Number of Islands  II	200	Number of Islands
435	Post Office  Problem
436	Maximal Square	221	Maximal Square	593	Valid Square
437	Copy Books
438	Copy Books II
439	Segment Tree  Build II
440	Backpack III
442	Implement Trie	28	Implement strStr()	208	Implement  Trie (Prefix Tree)
443	Two Sum  - Greater than target	744	Find  Smallest Letter Greater Than Target
445	Cosine Similarity	734	Sentence Similarity	737	Sentence  Similarity II
447	Search  in a Big Sorted Array	33	Search in  Rotated Sorted Array	81	Search  in Rotated Sorted Array II
448	Inorder  Successor in Binary Search Tree	285	Inorder  Successor in BST	255	Verify  Preorder Sequence in Binary Search Tree
450	Reverse Nodes  in k-Group	25	Reverse Nodes in  k-Group	151	Reverse Words  in a String
451	Swap Nodes in  Pairs	24	Swap Nodes in Pairs
452	Remove  Linked List Elements	203	Remove  Linked List Elements	206	Reverse Linked List
453	Flatten  Binary Tree to Linked List	114	Flatten  Binary Tree to Linked List	430	Flatten  a Multilevel Doubly Linked List
454	Rectangle Area	223	Rectangle Area	850	Rectangle Area II
457	Classical  Binary Search	704	Binary Search	669	Trim a Binary  Search Tree
458	Last Position  of Target	830	Positions of  Large Groups
459	Closest  Number in Sorted Array	540	Single  Element in a Sorted Array	88	Merge Sorted Array
460	K  Closest Numbers In Sorted Array
461	Kth  Smallest Numbers in Unsorted Array	378	Kth  Smallest Element in a Sorted Matrix	668	Kth  Smallest Number in Multiplication Table
462	Total  Occurrence of Target
463	Sort Integer	13	Roman to Integer	7	Reverse Integer
464	Sort Integers II	371	Sum of Two Integers	13	Roman to Integer
465	Kth  Smallest Sum In Two Sorted Arrays	378	Kth  Smallest Element in a Sorted Matrix	4	Median of  Two Sorted Arrays
466	Count Linked  List Nodes	382	Linked List  Random Node	817	Linked List  Components
469	Identical  Binary Tree	226	Invert Binary Tree	655	Print Binary Tree
471	Top K Frequent  Words	692	Top K Frequent  Words	347	Top K Frequent  Elements
472	Binary Tree  Path Sum III	257	Binary Tree Paths	124	Binary Tree  Maximum Path Sum
473	Add and Search  Word	211	Add  and Search Word - Data structure design
474	Lowest  Common Ancestor II	236	Lowest  Common Ancestor of a Binary Tree	235	Lowest  Common Ancestor of a Binary Search Tree
475	Binary  Tree Maximum Path Sum II	124	Binary Tree  Maximum Path Sum	257	Binary Tree Paths
476	Stone Game	877	Stone Game	174	Dungeon Game
477	Surrounded Regions	130	Surrounded Regions
479	Second Max of  Array
480	Binary Tree Paths	257	Binary Tree Paths	563	Binary Tree Tilt
484	Swap Two  Integers in Array	371	Sum of Two Integers
486	Merge k Sorted  Arrays	88	Merge Sorted Array	23	Merge k Sorted  Lists
487	Name Deduplication
488	Happy Number	202	Happy Number	263	Ugly Number
491	Palindrome Number	9	Palindrome Number	65	Valid Number
494	Implement  Stack by Two Queues	225	Implement  Stack using Queues
495	Implement Stack	28	Implement strStr()	225	Implement  Stack using Queues
496	Toy Factory
497	Shape Factory
498	Parking Lot	86	Partition List
499	Word Count  (Map Reduce)
500	Inverted Index	57	Insert Interval
501	Mini Twitter	355	Design Twitter	385	Mini Parser
502	Mini Cassandra
503	Anagram (Map  Reduce)
504	Inverted  Index (Map Reduce)
505	Web Logger
507	Wiggle Sort II	324	Wiggle Sort II	280	Wiggle Sort
508	Wiggle Sort	280	Wiggle Sort	324	Wiggle Sort II
509	Mini Yelp	385	Mini Parser
510	Maximal Rectangle	85	Maximal Rectangle	221	Maximal Square
511	Swap  Two Nodes in Linked List	237	Delete Node  in a Linked List	707	Design Linked List
512	Decode Ways	91	Decode Ways	639	Decode Ways II
513	Perfect Squares	279	Perfect Squares	367	Valid Perfect  Square
514	Paint Fence	276	Paint Fence	256	Paint House
515	Paint House	256	Paint House	265	Paint House II
516	Paint House II	265	Paint House II	256	Paint House
517	Ugly Number	263	Ugly Number	264	Ugly Number II
518	Super Ugly Number	313	Super Ugly Number	263	Ugly Number
519	Consistent Hashing
520	Consistent  Hashing II
521	Remove  Duplicate Numbers in Array	26	Remove  Duplicates from Sorted Array	316	Remove  Duplicate Letters
522	Tiny Url II
523	Url Parser	385	Mini Parser
524	Left Pad
525	Mini Uber	385	Mini Parser	268	Missing Number
526	Load Balancer
527	Trie Serialization
528	Flatten  Nested List Iterator	341	Flatten  Nested List Iterator
529	Geohash
530	Geohash II
531	Six Degrees
532	Reverse Pairs	493	Reverse Pairs	190	Reverse Bits
533	Two Sum -  Closest to target
534	House Robber II	213	House Robber II	337	House Robber III
535	House Robber III	337	House Robber III	213	House Robber II
538	Memcache
539	Move Zeroes	283	Move Zeroes	474	Ones and Zeroes
540	Zigzag Iterator	281	Zigzag Iterator	284	Peeking Iterator
541	Zigzag Iterator II	281	Zigzag Iterator	284	Peeking Iterator
543	Kth Largest  in N Arrays	215	Kth  Largest Element in an Array	532	K-diff Pairs in  an Array
544	Top k Largest  Numbers	179	Largest Number	165	Compare Version  Numbers
545	Top k  Largest Numbers II	179	Largest Number	137	Single Number II
547	Intersection  of Two Arrays	349	Intersection  of Two Arrays	350	Intersection  of Two Arrays II
548	Intersection  of Two Arrays II	350	Intersection  of Two Arrays II	349	Intersection  of Two Arrays
549	Top  K Frequent Words (Map Reduce)	692	Top K Frequent  Words	347	Top K Frequent  Elements
550	Top K  Frequent Words II	692	Top K Frequent  Words	347	Top K Frequent  Elements
551	Nested List  Weight Sum	339	Nested List  Weight Sum	364	Nested List  Weight Sum II
552	Create Maximum  Number	321	Create Maximum  Number	414	Third Maximum  Number
553	Bomb Enemy	361	Bomb Enemy
555	Counting Bloom  Filter	338	Counting Bits
556	Standard Bloom  Filter
558	Sliding  Window Matrix Maximum	239	Sliding Window  Maximum	480	Sliding Window  Median
559	Trie Service
560	Friendship Service	547	Friend Circles
562	Backpack IV
563	Backpack V
564	Backpack VI
565	Heart Beat
566	GFS Client
569	Add Digits	258	Add Digits	788	Rotated Digits
570	Find the  Missing Number II	268	Missing Number	287	Find the  Duplicate Number
573	Build Post  Office II
574	Build Post Office
575	Expression Expand	809	Expressive Words
577	Merge K  Sorted Interval Lists	23	Merge k Sorted  Lists	21	Merge Two Sorted  Lists
578	Lowest  Common Ancestor III	236	Lowest  Common Ancestor of a Binary Tree	235	Lowest  Common Ancestor of a Binary Search Tree
581	Longest  Repeating Subsequence	300	Longest  Increasing Subsequence	516	Longest  Palindromic Subsequence
582	Word Break II	140	Word Break II	139	Word Break
584	Drop Eggs II
585	Maximum  Number in Mountain Sequence	792	Number  of Matching Subsequences
586	Sqrt(x) II	69	Sqrt(x)
587	Two Sum -  Unique pairs
588	Partition  Equal Subset Sum	416	Partition  Equal Subset Sum	698	Partition  to K Equal Sum Subsets
589	Connecting Graph	133	Clone Graph
590	Connecting Graph  II	133	Clone Graph	850	Rectangle Area II
591	Connecting Graph  III	133	Clone Graph
593	Stone Game II	877	Stone Game	45	Jump Game II
594	strStr II
595	Binary  Tree Longest Consecutive Sequence	298	Binary  Tree Longest Consecutive Sequence	549	Binary  Tree Longest Consecutive Sequence II
596	Minimum Subtree	310	Minimum Height  Trees	76	Minimum Window  Substring
597	Subtree  with Maximum Average
598	Zombie in Matrix	519	Random Flip Matrix	766	Toeplitz Matrix
599	Insert  into a Cyclic Sorted List	708	Insert  into a Cyclic Sorted List	147	Insertion Sort List
600	Smallest  Rectangle Enclosing Black Pixels	302	Smallest  Rectangle Enclosing Black Pixels
601	Flatten 2D Vector	251	Flatten 2D Vector
602	Russian Doll  Envelopes	354	Russian Doll  Envelopes
603	Largest  Divisible Subset	368	Largest  Divisible Subset	333	Largest BST Subtree
604	Window Sum
605	Sequence  Reconstruction	444	Sequence  Reconstruction	406	Queue  Reconstruction by Height
606	Kth Largest  Element II	215	Kth  Largest Element in an Array	703	Kth  Largest Element in a Stream
607	Two  Sum - Data structure design	170	Two  Sum III - Data structure design	211	Add  and Search Word - Data structure design
608	Two  Sum - Input array is sorted	167	Two  Sum II - Input array is sorted	653	Two Sum IV -  Input is a BST
609	Two  Sum - Less than or equal to target
610	Two  Sum - Difference equals to target
611	Knight Shortest  Path
612	K Closest Points	658	Find K Closest  Elements	681	Next Closest Time
613	High Five
614	Binary  Tree Longest Consecutive Sequence II	549	Binary  Tree Longest Consecutive Sequence II	298	Binary  Tree Longest Consecutive Sequence
615	Course Schedule	207	Course Schedule	210	Course Schedule II
616	Course Schedule II	210	Course Schedule II	630	Course Schedule III
617	Maximum  Average Subarray	643	Maximum  Average Subarray I	644	Maximum  Average Subarray II
618	Search Graph Nodes
619	Binary  Tree Longest Consecutive Sequence III	549	Binary  Tree Longest Consecutive Sequence II	298	Binary  Tree Longest Consecutive Sequence
620	Maximum Subarray  IV	53	Maximum Subarray	643	Maximum  Average Subarray I
621	Maximum Subarray V	53	Maximum Subarray	643	Maximum  Average Subarray I
622	Frog Jump	403	Frog Jump
623	K Edit Distance	72	Edit Distance	161	One Edit Distance
624	Remove Substrings	344	Reverse String	796	Rotate String
625	Partition Array II	330	Patching Array	763	Partition Labels
627	Longest Palindrome	409	Longest Palindrome	214	Shortest Palindrome
629	Minimum  Spanning Tree	310	Minimum Height  Trees	111	Minimum  Depth of Binary Tree
630	Knight  Shortest Path II
631	Maximal Square II	221	Maximal Square	644	Maximum  Average Subarray II
632	Binary Tree  Maximum Node	124	Binary Tree  Maximum Path Sum	563	Binary Tree Tilt
633	Find the  Duplicate Number	287	Find the  Duplicate Number	652	Find Duplicate  Subtrees
634	Word Squares	425	Word Squares	422	Valid Word Square
635	Boggle Game	877	Stone Game	174	Dungeon Game
636	132 Pattern	456	132 Pattern	290	Word Pattern
637	Valid Word  Abbreviation	408	Valid Word  Abbreviation	527	Word Abbreviation
638	Strings  Homomorphism
639	Word Abbreviation	527	Word Abbreviation	408	Valid Word  Abbreviation
640	Edit Distance II	72	Edit Distance	161	One Edit Distance
641	Missing Ranges	163	Missing Ranges	268	Missing Number
642	Sliding  Window Average from Data Stream	346	Moving  Average from Data Stream	295	Find Median  from Data Stream
643	System  Longest File Path	687	Longest Univalue  Path	388	Longest  Absolute File Path
644	Strobogrammatic  Number	246	Strobogrammatic  Number	247	Strobogrammatic  Number II
645	Find the Celebrity	277	Find the Celebrity
646	First  Position Unique Character	387	First  Unique Character in a String
647	Substring Anagrams	49	Group Anagrams
648	Unique Word  Abbreviation	288	Unique Word  Abbreviation	411	Minimum  Unique Word Abbreviation
649	Binary Tree  Upside Down	156	Binary Tree  Upside Down	199	Binary Tree  Right Side View
650	Find  Leaves of Binary Tree	366	Find Leaves  of Binary Tree	543	Diameter of  Binary Tree
651	Binary  Tree Vertical Order Traversal	314	Binary  Tree Vertical Order Traversal	102	Binary  Tree Level Order Traversal
652	Factorization	625	Minimum  Factorization	254	Factor Combinations
653	Add Operators	282	Expression Add  Operators
654	Sparse  Matrix Multiplication	311	Sparse  Matrix Multiplication	537	Complex  Number Multiplication
655	Big Integer  Addition	370	Range Addition	598	Range Addition II
656	Big  Integer multiplication	537	Complex  Number Multiplication
657	Insert  Delete GetRandom O(1)	380	Insert  Delete GetRandom O(1)	381	Insert  Delete GetRandom O(1) - Duplicates allowed
658	Swap  Without Extra Variable (Only C++)
659	Encode and  Decode Strings	271	Encode and  Decode Strings	535	Encode and  Decode TinyURL
660	Read  N Characters Given Read4 II - Call multiple times	158	Read  N Characters Given Read4 II - Call multiple times	157	Read N  Characters Given Read4
661	Convert  BST to Greater Tree	538	Convert BST  to Greater Tree	109	Convert  Sorted List to Binary Search Tree
662	Guess Number Game	374	Guess  Number Higher or Lower
663	Walls and Gates	286	Walls and Gates	771	Jewels and Stones
664	Counting Bits	338	Counting Bits	749	Contain Virus
665	Range  Sum Query 2D - Immutable	304	Range Sum  Query 2D - Immutable	303	Range Sum  Query - Immutable
666	Guess Number  Game II	375	Guess  Number Higher or Lower II	45	Jump Game II
667	Longest  Palindromic Subsequence	516	Longest  Palindromic Subsequence	5	Longest  Palindromic Substring
668	Ones and Zeroes	474	Ones and Zeroes	73	Set Matrix Zeroes
669	Coin Change	322	Coin Change	518	Coin Change 2
670	Predict the Winner	587	Erect the Fence
671	Rotate Words	648	Replace Words	61	Rotate List
676	Decode Ways II	639	Decode Ways II	91	Decode Ways
677	Number of Big  Islands	200	Number of Islands	305	Number of Islands  II
678	Convert Palindrome	409	Longest Palindrome	214	Shortest Palindrome
679	Unique Paths III	63	Unique Paths II	62	Unique Paths
680	Split String	776	Split BST	87	Scramble String
681	First  Missing Prime Number	41	First Missing  Positive	268	Missing Number
683	Word Break III	140	Word Break II	139	Word Break
684	Missing String	163	Missing Ranges	268	Missing Number
685	First  Unique Number In Stream	387	First  Unique Character in a String
688	The Number In  Words
689	Two Sum - BST  edtion
690	Factorial
691	BST Swapped Nodes
692	Sliding  Window Unique Elements Sum	239	Sliding Window  Maximum	480	Sliding Window  Median
696	Course Schedule  III	630	Course Schedule III	210	Course Schedule II
697	Check Sum  of Square Numbers	633	Sum of Square  Numbers
698	Maximum  Difference in Arrays	624	Maximum  Distance in Arrays	530	Minimum  Absolute Difference in BST
699	Check Sum of K  Primes
700	Cutting a Rod
701	Trim Binary  Search Tree	669	Trim a Binary  Search Tree	96	Unique Binary  Search Trees
702	Concatenated  String with Uncommon Characters of Two Strings
703	Folding Array	330	Patching Array	665	Non-decreasing Array
704	Lights Switcher	319	Bulb Switcher
706	Binary Time	563	Binary Tree Tilt	704	Binary Search
707	Balance Graph	133	Clone Graph
717	Tree  Longest Path With Same Value
718	Repeat String	796	Rotate String	686	Repeated String  Match
719	Calculate  Maximum Value	321	Create Maximum  Number
720	Rearrange  a String With Integers
721	Next Sparse Number	507	Perfect Number	179	Largest Number
722	Maximum Subarray  VI	53	Maximum Subarray	643	Maximum  Average Subarray I
723	Rotate Bits - Left	788	Rotated Digits	61	Rotate List
724	Minimum Partition	625	Minimum  Factorization	433	Minimum Genetic  Mutation
725	Boolean  Parenthesization	678	Valid  Parenthesis String
726	Check Full  Binary Tree	894	All  Possible Full Binary Trees	226	Invert Binary Tree
727	Chinese  Remainder Theorem
728	Three Distinct  Factors	823	Binary Trees  With Factors
729	Last  Digit By Factorial Divide
730	Sum of All Subsets	891	Sum of  Subsequence Widths
734	Number  of Subsequences of Form a^i b^j c^k	792	Number  of Matching Subsequences
735	Replace  With Greatest From Right
737	Find Elements  in Matrix	438	Find All  Anagrams in a String	162	Find Peak Element
738	Count  Different Palindromic Subsequences	730	Count  Different Palindromic Subsequences	516	Longest  Palindromic Subsequence
739	Compute 24 Game	679	24 Game	837	New 21 Game
740	Coin Change II	518	Coin Change 2	322	Coin Change
741	Calculate  Maximum Value II	321	Create Maximum  Number
742	Digit Divide  Numbers	306	Additive Number	728	Self Dividing  Numbers
743	Monotone  Increasing Digits	738	Monotone  Increasing Digits
744	Sum  of first K even-length Palindrome numbers
745	Palindromic Ranges	647	Palindromic  Substrings	336	Palindrome Pairs
749	John's  backyard garden
750	Portal
751	John's business
752	Rogue Knight Sven
761	Smallest Subset	632	Smallest Range	483	Smallest Good Base
762	Longest  Common Subsequence II	522	Longest  Uncommon Subsequence II	521	Longest  Uncommon Subsequence I
763	Hex Conversion	6	ZigZag Conversion
764	Calculate  Circumference And Area
765	Valid Triangle	611	Valid Triangle  Number	120	Triangle
766	Leap Year
767	Reverse Array	493	Reverse Pairs	344	Reverse String
768	Yang Hui Triangle	120	Triangle
769	Spiral Array	54	Spiral Matrix
770	Maximum and  Minimum	164	Maximum Gap
772	Group Anagrams	49	Group Anagrams
774	Repeated DNA	187	Repeated DNA  Sequences
775	Palindrome Pairs	336	Palindrome Pairs	9	Palindrome Number
776	Strobogrammatic  Number II	247	Strobogrammatic  Number II	248	Strobogrammatic  Number III
777	Valid Perfect  Square	367	Valid Perfect  Square	279	Perfect Squares
778	Pacific  Atlantic Water Flow	417	Pacific  Atlantic Water Flow
779	Generalized  Abbreviation	320	Generalized  Abbreviation	527	Word Abbreviation
782	AND and OR
783	Minimum Risk Path	64	Minimum Path Sum
784	The  Longest Common Prefix II	14	Longest Common  Prefix	522	Longest  Uncommon Subsequence II
785	Maximum  Weighted Sum Path	646	Maximum  Length of Pair Chain	718	Maximum  Length of Repeated Subarray
787	The Maze	490	The Maze	505	The Maze II
788	The Maze II	505	The Maze II	499	The Maze III
789	The Maze III	499	The Maze III	505	The Maze II
790	Parser	385	Mini Parser
791	Merge Number	507	Perfect Number	179	Largest Number
792	Kth Prime Number	9	Palindrome Number	878	Nth Magical Number
793	Intersection  of Arrays	349	Intersection  of Two Arrays	350	Intersection  of Two Arrays II
796	Open the Lock	752	Open the Lock
797	Reach a Number	754	Reach a Number	507	Perfect Number
798	Backpack VII
799	Backpack VIII
800	Backpack IX
801	Backpack X
803	Shortest  Distance from All Buildings	317	Shortest  Distance from All Buildings	821	Shortest  Distance to a Character
804	Number  of Distinct Islands II	711	Number of  Distinct Islands II	694	Number of  Distinct Islands
805	Maximum  Association Set	568	Maximum Vacation  Days
806	Buy Fruits
807	Palindrome  Number II	9	Palindrome Number	137	Single Number II
808	Movie Network
813	Find Anagram  Mappings	760	Find Anagram  Mappings	438	Find All  Anagrams in a String
814	Shortest  Path in Undirected Graph	214	Shortest Palindrome
817	Range Sum  Query 2D - Mutable	308	Range Sum  Query 2D - Mutable	307	Range Sum Query  - Mutable
818	Subset With Target
819	Word Sorting	394	Decode String	758	Bold Words in  String
820	Rectangle	223	Rectangle Area	836	Rectangle Overlap
821	Time Intersection	558	Quad Tree  Intersection	356	Line Reflection
822	Reverse Order  Storage	344	Reverse String	151	Reverse Words  in a String
823	Input Stream
824	Single Number IV	137	Single Number II	260	Single Number III
825	Bus Station	134	Gas Station	46	Permutations
826	Computer  Maintenance
828	Word Pattern	290	Word Pattern	291	Word Pattern II
829	Word Pattern II	291	Word Pattern II	290	Word Pattern
830	String Sort	280	Wiggle Sort	443	String Compression
831	3Sum II	454	4Sum II	15	3Sum
832	Count Negative  Number	829	Consecutive  Numbers Sum	306	Additive Number
833	Process Sequence	392	Is Subsequence	491	Increasing  Subsequences
834	Remove  Duplicate Letters	316	Remove  Duplicate Letters	83	Remove  Duplicates from Sorted List
835	Hamming Distance	461	Hamming Distance	477	Total Hamming  Distance
836	Partition  to K Equal Sum Subsets	698	Partition  to K Equal Sum Subsets	416	Partition  Equal Subset Sum
837	Palindromic  Substrings	647	Palindromic  Substrings	5	Longest  Palindromic Substring
838	Subarray Sum  Equals K	560	Subarray Sum  Equals K	325	Maximum  Size Subarray Sum Equals k
839	Merge  Two Sorted Interval Lists	21	Merge Two Sorted  Lists	23	Merge k Sorted  Lists
840	Range Sum  Query - Mutable	307	Range Sum Query  - Mutable	308	Range Sum  Query 2D - Mutable
841	String Replace	397	Integer Replacement
842	Origami
843	Digital Flip
844	Number Pair  Statistics
845	Greatest  Common Divisor	819	Most Common Word
846	Multi-keyword Sort
848	Minimize  Max Distance to Gas Station	774	Minimize  Max Distance to Gas Station	849	Maximize  Distance to Closest Person
849	Basic Calculator  III	772	Basic Calculator  III	227	Basic Calculator II
851	Pour Water	755	Pour Water
853	Number Of  Corner Rectangles	750	Number Of  Corner Rectangles	447	Number of  Boomerangs
856	Sentence  Similarity	734	Sentence Similarity	737	Sentence  Similarity II
857	Minimum  Window Subsequence	727	Minimum  Window Subsequence	76	Minimum Window  Substring
858	Candy Crush	723	Candy Crush	135	Candy
860	Number of  Distinct Islands	694	Number of  Distinct Islands	711	Number of  Distinct Islands II
861	K Empty Slots	683	K Empty Slots
862	Next Closest Time	681	Next Closest Time
863	Binary Tree  Path Sum IV	257	Binary Tree Paths	124	Binary Tree  Maximum Path Sum
864	Equal Tree  Partition	663	Equal Tree  Partition	131	Palindrome  Partitioning
865	Remove 9	660	Remove 9	546	Remove Boxes
866	Coin Path	656	Coin Path	322	Coin Change
867	4 Keys Keyboard	651	4 Keys Keyboard	650	2 Keys Keyboard
868	Maximum  Average Subarray I	643	Maximum  Average Subarray I	644	Maximum  Average Subarray II
869	Find  the Derangement of An Array	634	Find  the Derangement of An Array	697	Degree of an Array
871	Minimum  Factorization	625	Minimum  Factorization	433	Minimum Genetic  Mutation
872	Kill Process	582	Kill Process
873	Squirrel  Simulation	573	Squirrel Simulation
874	Maximum  Vacation Days	568	Maximum Vacation  Days	625	Minimum  Factorization
875	Longest  Line of Consecutive One in Matrix	562	Longest  Line of Consecutive One in Matrix	128	Longest  Consecutive Sequence
876	Split  Concatenated Strings	555	Split  Concatenated Strings	472	Concatenated Words
877	Split  Array with Equal Sum	548	Split Array  with Equal Sum	410	Split Array  Largest Sum
878	Boundary of  Binary Tree	545	Boundary of  Binary Tree	543	Diameter of  Binary Tree
879	Output Contest  Matches	544	Output Contest  Matches
880	Construct  Binary Tree from String	536	Construct  Binary Tree from String	105	Construct  Binary Tree from Preorder and Inorder Traversal
883	Max  Consecutive Ones II	487	Max Consecutive  Ones II	485	Max Consecutive  Ones
884	Find Permutation	484	Find Permutation	266	Palindrome  Permutation
885	Encode  String with Shortest Length	471	Encode  String with Shortest Length
886	Convex Polygon	469	Convex Polygon
887	Ternary  Expression Parser	439	Ternary  Expression Parser	10	Regular  Expression Matching
888	Valid Word Square	422	Valid Word Square	593	Valid Square
889	Sentence  Screen Fitting	418	Sentence Screen  Fitting	734	Sentence Similarity
891	Valid Palindrome  II	680	Valid Palindrome II	125	Valid Palindrome
892	Alien Dictionary	269	Alien Dictionary	676	Implement  Magic Dictionary
895	Friend Request	547	Friend Circles
896	Prime Product	866	Prime Palindrome	479	Largest  Palindrome Product
897	Island City	463	Island Perimeter
898	Leftmost One
900	Closest  Binary Search Tree Value	270	Closest  Binary Search Tree Value	272	Closest  Binary Search Tree Value II
901	Closest  Binary Search Tree Value II	272	Closest  Binary Search Tree Value II	270	Closest  Binary Search Tree Value
902	Kth  Smallest Element in a BST	230	Kth  Smallest Element in a BST	378	Kth  Smallest Element in a Sorted Matrix
903	Range Addition	370	Range Addition	598	Range Addition II
904	Plus One Linked  List	369	Plus One Linked  List	234	Palindrome Linked  List
906	Sort  Transformed Array	360	Sort Transformed  Array	88	Merge Sorted Array
908	Line Reflection	356	Line Reflection	858	Mirror Reflection
909	Android  Unlock Patterns	351	Android Unlock  Patterns
911	Maximum  Size Subarray Sum Equals k	325	Maximum  Size Subarray Sum Equals k	209	Minimum Size  Subarray Sum
912	Best Meeting Point	296	Best Meeting Point	780	Reaching Points
913	Flip Game II	294	Flip Game II	293	Flip Game
914	Flip Game	293	Flip Game	294	Flip Game II
915	Inorder  Predecessor in BST	285	Inorder  Successor in BST
916	Palindrome  Permutation	266	Palindrome  Permutation	267	Palindrome  Permutation II
917	Palindrome  Permutation II	267	Palindrome  Permutation II	266	Palindrome  Permutation
918	3Sum Smaller	259	3Sum Smaller
919	Meeting Rooms II	253	Meeting Rooms II	252	Meeting Rooms
920	Meeting Rooms	252	Meeting Rooms	253	Meeting Rooms II
921	Count  Univalue Subtrees	250	Count Univalue  Subtrees	696	Count Binary  Substrings
927	Reverse  Words in a String II	186	Reverse  Words in a String II	557	Reverse  Words in a String III
932	Friends  Within Three Jumps
933	Tuple Multiply
934	Unlock Problem
935	Cartesian Product	479	Largest  Palindrome Product
941	Sliding Puzzle	773	Sliding Puzzle
943	Range Sum  Query - Immutable	303	Range Sum  Query - Immutable	304	Range Sum  Query 2D - Immutable
944	Maximum Submatrix	53	Maximum Subarray	670	Maximum Swap
945	Task Scheduler	621	Task Scheduler	207	Course Schedule
946	233 Matrix	542	01 Matrix	54	Spiral Matrix
947	Matrix Power  Series	73	Set Matrix Zeroes
949	Fibonacci II
950	Sliding Puzzle III	773	Sliding Puzzle
951	Rearrange
952	Digital Problem
953	The  Biggest Score On The Tree
954	Insert  Delete GetRandom O(1) - Duplicates allowed	381	Insert  Delete GetRandom O(1) - Duplicates allowed	380	Insert  Delete GetRandom O(1)
955	Implement  Queue by Circular Array	232	Implement  Queue using Stacks
956	Data Segmentation	134	Gas Station	649	Dota2 Senate
957	Radar Detection	396	Rotate Function
958	Palindrome  Data Stream	295	Find Median  from Data Stream	336	Palindrome Pairs
959	K Spaced Array  Sorting
960	First  Unique Number in a Stream II	387	First  Unique Character in a String
969	Longest  Repeating Substring	5	Longest  Palindromic Substring	300	Longest  Increasing Subsequence
970	Big Business
971	Surplus Value  Backpack
972	Deliver The  Message
973	1-bit and  2-bit Characters	717	1-bit and 2-bit  Characters
974	01 Matrix	542	01 Matrix	54	Spiral Matrix
975	2 Keys Keyboard	650	2 Keys Keyboard	651	4 Keys Keyboard
976	4Sum II	454	4Sum II	18	4Sum
977	Base 7	504	Base 7
978	Basic Calculator	224	Basic Calculator	770	Basic Calculator IV
979	Additive Number	306	Additive Number	2	Add Two Numbers
980	Basic Calculator  II	227	Basic Calculator II	772	Basic Calculator  III
981	Basic Calculator  IV	770	Basic Calculator IV	227	Basic Calculator II
982	Arithmetic Slices	413	Arithmetic Slices	446	Arithmetic  Slices II - Subsequence
983	Baseball Game	682	Baseball Game
984	Arithmetic  Slices II - Subsequence	446	Arithmetic  Slices II - Subsequence	413	Arithmetic Slices
985	Can I Win	464	Can I Win
986	Battleships in  a Board	419	Battleships in a  Board
987	Binary  Number with Alternating Bits	693	Binary  Number with Alternating Bits
988	Arranging Coins	441	Arranging Coins	780	Reaching Points
989	Array Nesting	565	Array Nesting	561	Array Partition I
990	Beautiful  Arrangement	526	Beautiful  Arrangement	667	Beautiful  Arrangement II
991	Bulb Switcher	319	Bulb Switcher	672	Bulb Switcher II
992	Beautiful  Arrangement II	667	Beautiful  Arrangement II	526	Beautiful  Arrangement
993	Array Partition I	561	Array Partition I	86	Partition List
994	Contiguous Array	525	Contiguous Array	523	Continuous  Subarray Sum
995	Best  Time to Buy and Sell Stock with Cooldown	309	Best  Time to Buy and Sell Stock with Cooldown	121	Best  Time to Buy and Sell Stock
1000	Best  Time to Buy and Sell Stock with Transaction Fee	714	Best  Time to Buy and Sell Stock with Transaction Fee	309	Best  Time to Buy and Sell Stock with Cooldown
1001	Asteroid Collision	735	Asteroid Collision
1002	Bus Routes	815	Bus Routes
1003	Binary Tree  Pruning	814	Binary Tree Pruning	563	Binary Tree Tilt
1005	Largest  Triangle Area	812	Largest Triangle  Area	223	Rectangle Area
1006	Subdomain Visit  Count	811	Subdomain Visit  Count
1007	Chalkboard XOR  Game	810	Chalkboard XOR Game
1008	Expressive Words	809	Expressive Words	843	Guess the Word
1010	Max  Increase to Keep City Skyline	807	Max  Increase to Keep City Skyline
1011	Number  of Lines To Write String	806	Number  of Lines To Write String	434	Number of  Segments in a String
1014	Bricks  Falling When Hit	803	Bricks Falling  When Hit
1015	Find  Eventual Safe States	802	Find Eventual  Safe States
1016	Minimum  Swaps To Make Sequences Increasing	801	Minimum  Swaps To Make Sequences Increasing
1017	Similar RGB Color	800	Similar RGB Color
1018	Champagne Tower	799	Champagne Tower
1019	Smallest  Rotation with Highest Score	798	Smallest  Rotation with Highest Score
1020	All  Paths From Source to Target	797	All  Paths From Source to Target
1021	Number  of Subarrays with Bounded Maximum	795	Number  of Subarrays with Bounded Maximum
1022	Valid  Tic-Tac-Toe State	794	Valid Tic-Tac-Toe  State	348	Design Tic-Tac-Toe
1023	Preimage  Size of Factorial Zeroes Function	793	Preimage  Size of Factorial Zeroes Function
1024	Number  of Matching Subsequences	792	Number  of Matching Subsequences	673	Number  of Longest Increasing Subsequence
1026	Domino and  Tromino Tiling	790	Domino and  Tromino Tiling
1027	Escape The Ghosts	789	Escape The Ghosts
1028	Rotated Digits	788	Rotated Digits	61	Rotate List
1029	Cheapest  Flights Within K Stops	787	Cheapest  Flights Within K Stops
1030	K-th  Smallest Prime Fraction	786	K-th  Smallest Prime Fraction	719	Find  K-th Smallest Pair Distance
1031	Is Graph Bipartite	785	Is Graph Bipartite
1032	Letter Case  Permutation	784	Letter Case  Permutation	31	Next Permutation
1033	Minimum  Distance Between BST Nodes	783	Minimum  Distance Between BST Nodes	624	Maximum  Distance in Arrays
1034	Transform to  Chessboard	782	Transform to  Chessboard
1035	Rabbits in Forest	781	Rabbits in Forest
1036	Reaching Points	780	Reaching Points	296	Best Meeting Point
1037	Global  and Local Inversions	775	Global and  Local Inversions
1038	Jewels And Stones	771	Jewels and Stones
1039	Max Chunks  To Make Sorted	769	Max Chunks To  Make Sorted	768	Max Chunks  To Make Sorted II
1040	Max  Chunks To Make Sorted II	768	Max Chunks  To Make Sorted II	769	Max Chunks To  Make Sorted
1042	Toeplitz Matrix	766	Toeplitz Matrix	54	Spiral Matrix
1043	Couples Holding  Hands	765	Couples Holding  Hands
1044	Largest Plus Sign	764	Largest Plus Sign
1045	Partition Labels	763	Partition Labels	86	Partition List
1046	Prime  Number of Set Bits in Binary Representation	762	Prime  Number of Set Bits in Binary Representation
1047	Special Binary  String	761	Special Binary  String	696	Count Binary  Substrings
1048	Set  Intersection Size At Least Two	757	Set  Intersection Size At Least Two
1049	Pyramid  Transition Matrix	756	Pyramid  Transition Matrix	867	Transpose Matrix
1051	Contain Virus	749	Contain Virus	338	Counting Bits
1052	Shortest  Completing Word	748	Shortest  Completing Word	819	Most Common Word
1054	Min Cost  Climbing Stairs	746	Min Cost  Climbing Stairs	70	Climbing Stairs
1056	Find  Smallest Letter Greater Than Target	744	Find  Smallest Letter Greater Than Target
1057	Network Delay Time	743	Network Delay Time
1058	Cherry Pickup	741	Cherry Pickup
1059	Delete and Earn	740	Delete and Earn
1060	Daily Temperatures	739	Daily Temperatures
1062	Flood Fill	733	Flood Fill
1063	My Calendar III	732	My Calendar III	731	My Calendar II
1064	My Calendar II	731	My Calendar II	732	My Calendar III
1065	My Calendar I	729	My Calendar I	731	My Calendar II
1066	Verify  Preorder Serialization of a Binary Tree	331	Verify  Preorder Serialization of a Binary Tree	255	Verify  Preorder Sequence in Binary Search Tree
1068	Find Pivot Index	724	Find Pivot Index	398	Random Pick Index
1069	Remove Comments	722	Remove Comments	27	Remove Element
1070	Accounts Merge	721	Accounts Merge
1071	Longest  Word in Dictionary	720	Longest Word  in Dictionary	524	Longest  Word in Dictionary through Deleting
1074	Range Module	715	Range Module
1075	Subarray  Product Less Than K	713	Subarray  Product Less Than K
1076	Minimum  ASCII Delete Sum for Two Strings	712	Minimum  ASCII Delete Sum for Two Strings	599	Minimum  Index Sum of Two Lists
1077	Falling Squares	699	Falling Squares	593	Valid Square
1078	Degree of an Array	697	Degree of an Array	634	Find  the Derangement of An Array
1079	Count Binary  Substrings	696	Count Binary  Substrings	5	Longest  Palindromic Substring
1080	Max Area of Island	695	Max Area of Island	200	Number of Islands
1081	Stickers to  Spell Word	691	Stickers to Spell  Word
1083	Maximum  Sum of 3 Non-Overlapping Subarrays	689	Maximum  Sum of 3 Non-Overlapping Subarrays	643	Maximum  Average Subarray I
1085	Longest  Univalue Path	687	Longest Univalue  Path	388	Longest  Absolute File Path
1086	Repeated String  Match	686	Repeated String  Match	459	Repeated  Substring Pattern
1087	Redundant  Connection II	685	Redundant  Connection II	684	Redundant  Connection
1088	Redundant  Connection	684	Redundant  Connection	685	Redundant  Connection II
1089	Valid  Parenthesis String	678	Valid  Parenthesis String	20	Valid Parentheses
1092	Cut Off  Trees for Golf Event	675	Cut Off  Trees for Golf Event
1093	Number  of Longest Increasing Subsequence	673	Number  of Longest Increasing Subsequence	300	Longest  Increasing Subsequence
1094	Second  Minimum Node In a Binary Tree	671	Second  Minimum Node In a Binary Tree	111	Minimum  Depth of Binary Tree
1095	Maximum Swap	670	Maximum Swap	164	Maximum Gap
1097	Kth  Smallest Number in Multiplication Table	668	Kth  Smallest Number in Multiplication Table	537	Complex  Number Multiplication
1099	Non-decreasing  Array	665	Non-decreasing Array
1100	Strange Printer	664	Strange Printer
1101	Maximum  Width of Binary Tree	662	Maximum  Width of Binary Tree	104	Maximum  Depth of Binary Tree
1103	Split  Array into Consecutive Subsequences	659	Split  Array into Consecutive Subsequences	842	Split  Array into Fibonacci Sequence
1104	Judge Route Circle	657	Judge Route Circle
1105	Print Binary Tree	655	Print Binary Tree	226	Invert Binary Tree
1106	Maximum Binary  Tree	654	Maximum Binary Tree	662	Maximum  Width of Binary Tree
1109	Dota2 Senate	649	Dota2 Senate
1110	Replace Words	648	Replace Words
1112	Set Mismatch	645	Set Mismatch
1113	Solve the Equation	640	Solve the Equation
1114	Shopping Offers	638	Shopping Offers
1116	Exclusive  Time of Functions	636	Exclusive  Time of Functions
1117	Smallest Range	632	Smallest Range	483	Smallest Good Base
1118	K Inverse Pairs  Array	629	K Inverse Pairs  Array	493	Reverse Pairs
1119	Maximum  Product of Three Numbers	628	Maximum  Product of Three Numbers	318	Maximum  Product of Word Lengths
1122	Add One Row to  Tree	623	Add One Row to Tree
1126	Merge Two  Binary Trees	617	Merge Two Binary  Trees	543	Diameter of  Binary Tree
1127	Add Bold Tag  in String	616	Add Bold Tag in  String	758	Bold Words in  String
1132	Valid Triangle  Number	611	Valid Triangle  Number	65	Valid Number
1134	Find  Duplicate File in System	609	Find  Duplicate File in System	652	Find Duplicate  Subtrees
1137	Construct  String from Binary Tree	606	Construct  String from Binary Tree	742	Closest  Leaf in a Binary Tree
1138	Can Place Flowers	605	Can Place Flowers
1142	Non-negative  Integers without Consecutive Ones	600	Non-negative  Integers without Consecutive Ones
1143	Minimum  Index Sum of Two Lists	599	Minimum  Index Sum of Two Lists	712	Minimum  ASCII Delete Sum for Two Strings
1144	Range Addition II	598	Range Addition II	370	Range Addition
1145	Longest  Harmonious Subsequence	594	Longest  Harmonious Subsequence	521	Longest  Uncommon Subsequence I
1149	Valid Square	593	Valid Square	422	Valid Word Square
1150	Fraction  Addition and Subtraction	592	Fraction  Addition and Subtraction
1151	Tag Validator	591	Tag Validator	393	UTF-8 Validation
1156	Delete  Operation for Two Strings	583	Delete  Operation for Two Strings	712	Minimum  ASCII Delete Sum for Two Strings
1157	Shortest  Unsorted Continuous Subarray	581	Shortest  Unsorted Continuous Subarray	523	Continuous  Subarray Sum
1163	Distribute Candies	575	Distribute Candies
1164	Wiggle Subsequence	376	Wiggle Subsequence	392	Is Subsequence
1165	Subtree of  Another Tree	572	Subtree of  Another Tree
1169	Permutation in  String	567	Permutation in  String	60	Permutation  Sequence
1170	Reshape the Matrix	566	Reshape the Matrix	766	Toeplitz Matrix
1171	Find the  Closest Palindrome	564	Find the  Closest Palindrome	214	Shortest Palindrome
1172	Binary Tree Tilt	563	Binary Tree Tilt	257	Binary Tree Paths
1173	Reverse  Words in a String III	557	Reverse  Words in a String III	186	Reverse  Words in a String II
1174	Next Greater  Element III	556	Next Greater  Element III	503	Next Greater  Element II
1176	Optimal Division	553	Optimal Division	399	Evaluate Division
1177	Student  Attendance Record II	552	Student  Attendance Record II	551	Student  Attendance Record I
1178	Student  Attendance Record I	551	Student  Attendance Record I	552	Student  Attendance Record II
1180	Remove Boxes	546	Remove Boxes	722	Remove Comments
1181	Diameter of  Binary Tree	543	Diameter of  Binary Tree	111	Minimum  Depth of Binary Tree
1183	Single  Element in a Sorted Array	540	Single  Element in a Sorted Array	378	Kth  Smallest Element in a Sorted Matrix
1184	Minimum Time  Difference	539	Minimum Time  Difference	389	Find the Difference
1185	Complex  Number Multiplication	537	Complex  Number Multiplication	668	Kth  Smallest Number in Multiplication Table
1187	K-diff Pairs  in an Array	532	K-diff Pairs in  an Array	215	Kth  Largest Element in an Array
1188	Minimum  Absolute Difference in BST	530	Minimum  Absolute Difference in BST	539	Minimum Time  Difference
1190	Longest  Word in Dictionary through Deleting	524	Longest  Word in Dictionary through Deleting	720	Longest Word  in Dictionary
1191	Longest  Uncommon Subsequence II	522	Longest  Uncommon Subsequence II	521	Longest  Uncommon Subsequence I
1192	Longest  Uncommon Subsequence I	521	Longest  Uncommon Subsequence I	522	Longest  Uncommon Subsequence II
1193	Detect Capital	520	Detect Capital
1194	Super Washing  Machines	517	Super Washing  Machines
1195	Find  Largest Value in Each Tree Row	515	Find  Largest Value in Each Tree Row	366	Find Leaves  of Binary Tree
1197	Find  Bottom Left Tree Value	513	Find Bottom  Left Tree Value
1198	Most  Frequent Subtree Sum	508	Most Frequent  Subtree Sum
1199	Perfect Number	507	Perfect Number	179	Largest Number
1200	Relative Ranks	506	Relative Ranks
1210	Increasing  Subsequences	491	Increasing  Subsequences	300	Longest  Increasing Subsequence
1297	Count  of Smaller Numbers After Self	315	Count  of Smaller Numbers After Self
1305	Integer to  English Words	273	Integer to  English Words	12	Integer to Roman
1365	Minimum Cycle  Section	433	Minimum Genetic  Mutation	625	Minimum  Factorization
1366	Directed Graph  Loop
1367	Police Distance	72	Edit Distance	477	Total Hamming  Distance
1368	Same Number	136	Single Number	179	Largest Number
1377	Find Substring	647	Palindromic  Substrings	76	Minimum Window  Substring
1378	Minimum  String Array Coverage
1379	The Longest Scene
1380	Log Sorting	791	Custom Sort String
1395	The  Barycentre Of The Trees
1396	Set Union
1397	Digital Coverage	498	Diagonal Traverse
1398	K Decimal Addition	370	Range Addition