LeetCode-in-Go

README

LeetCode 的 Go 解答

进度

统计规则：1.免费题，2.算法题，3.能用 Go 解答

	Easy	Medium	Hard	Total
Accepted	155	260	109	524
Total	155	260	108	523

题解

题号	题目	通过率	难度	收藏
1	Two Sum	36%	Easy
2	Add Two Numbers	28%	Medium
3	Longest Substring Without Repeating Characters	24%	Medium
4	Median of Two Sorted Arrays	22%	Hard
5	Longest Palindromic Substring	25%	Medium
6	ZigZag Conversion	27%	Medium
7	Reverse Integer	24%	Easy
8	String to Integer (atoi)	13%	Medium
9	Palindrome Number	35%	Easy
10	Regular Expression Matching	24%	Hard	❤
11	Container With Most Water	36%	Medium
12	Integer to Roman	45%	Medium
13	Roman to Integer	47%	Easy
14	Longest Common Prefix	31%	Easy
15	3Sum	21%	Medium
16	3Sum Closest	31%	Medium
17	Letter Combinations of a Phone Number	35%	Medium
18	4Sum	27%	Medium
19	Remove Nth Node From End of List	34%	Medium
20	Valid Parentheses	33%	Easy
21	Merge Two Sorted Lists	39%	Easy
22	Generate Parentheses	46%	Medium	❤
23	Merge k Sorted Lists	27%	Hard
24	Swap Nodes in Pairs	38%	Medium	❤
25	Reverse Nodes in k-Group	31%	Hard	❤
26	Remove Duplicates from Sorted Array	35%	Easy	❤
27	Remove Element	40%	Easy
28	Implement strStr()	28%	Easy
29	Divide Two Integers	15%	Medium
30	Substring with Concatenation of All Words	22%	Hard	❤
31	Next Permutation	28%	Medium	❤
32	Longest Valid Parentheses	23%	Hard
33	Search in Rotated Sorted Array	32%	Medium	❤
34	Search for a Range	31%	Medium
35	Search Insert Position	39%	Easy
36	Valid Sudoku	36%	Medium	❤
37	Sudoku Solver	31%	Hard	❤
38	Count and Say	36%	Easy
39	Combination Sum	40%	Medium
40	Combination Sum II	35%	Medium
41	First Missing Positive	25%	Hard
42	Trapping Rain Water	37%	Hard
43	Multiply Strings	27%	Medium
44	Wildcard Matching	20%	Hard	❤
45	Jump Game II	26%	Hard
46	Permutations	45%	Medium
47	Permutations II	34%	Medium
48	Rotate Image	40%	Medium
49	Group Anagrams	37%	Medium	❤
50	Pow(x, n)	26%	Medium
51	N-Queens	32%	Hard
52	N-Queens II	46%	Hard
53	Maximum Subarray	40%	Easy	❤
54	Spiral Matrix	26%	Medium	❤
55	Jump Game	29%	Medium
56	Merge Intervals	31%	Medium	❤
57	Insert Interval	28%	Hard
58	Length of Last Word	32%	Easy
59	Spiral Matrix II	40%	Medium	❤
60	Permutation Sequence	29%	Medium
61	Rotate List	24%	Medium	❤
62	Unique Paths	42%	Medium	❤
63	Unique Paths II	32%	Medium
64	Minimum Path Sum	39%	Medium
65	Valid Number	12%	Hard
66	Plus One	39%	Easy
67	Add Binary	33%	Easy
68	Text Justification	19%	Hard
69	Sqrt(x)	28%	Easy
70	Climbing Stairs	40%	Easy
71	Simplify Path	26%	Medium
72	Edit Distance	32%	Hard	❤
73	Set Matrix Zeroes	36%	Medium	❤
74	Search a 2D Matrix	34%	Medium
75	Sort Colors	38%	Medium	❤
76	Minimum Window Substring	26%	Hard	❤
77	Combinations	40%	Medium
78	Subsets	43%	Medium	❤
79	Word Search	27%	Medium
80	Remove Duplicates from Sorted Array II	36%	Medium	❤
81	Search in Rotated Sorted Array II	32%	Medium
82	Remove Duplicates from Sorted List II	29%	Medium	❤
83	Remove Duplicates from Sorted List	40%	Easy
84	Largest Rectangle in Histogram	27%	Hard	❤
85	Maximal Rectangle	29%	Hard	❤
86	Partition List	33%	Medium
87	Scramble String	29%	Hard	❤
88	Merge Sorted Array	32%	Easy
89	Gray Code	41%	Medium
90	Subsets II	37%	Medium	❤
91	Decode Ways	20%	Medium	❤
92	Reverse Linked List II	31%	Medium
93	Restore IP Addresses	28%	Medium	❤
94	Binary Tree Inorder Traversal	48%	Medium
95	Unique Binary Search Trees II	31%	Medium	❤
96	Unique Binary Search Trees	41%	Medium
97	Interleaving String	24%	Hard	❤
98	Validate Binary Search Tree	23%	Medium	❤
99	Recover Binary Search Tree	30%	Hard	❤
100	Same Tree	47%	Easy
101	Symmetric Tree	39%	Easy	❤
102	Binary Tree Level Order Traversal	41%	Medium
103	Binary Tree Zigzag Level Order Traversal	35%	Medium
104	Maximum Depth of Binary Tree	53%	Easy
105	Construct Binary Tree from Preorder and Inorder Traversal	33%	Medium	❤
106	Construct Binary Tree from Inorder and Postorder Traversal	32%	Medium	❤
107	Binary Tree Level Order Traversal II	41%	Easy
108	Convert Sorted Array to Binary Search Tree	43%	Easy
109	Convert Sorted List to Binary Search Tree	34%	Medium
110	Balanced Binary Tree	38%	Easy
111	Minimum Depth of Binary Tree	33%	Easy
112	Path Sum	34%	Easy
113	Path Sum II	34%	Medium
114	Flatten Binary Tree to Linked List	36%	Medium	❤
115	Distinct Subsequences	31%	Hard	❤
118	Pascal's Triangle	39%	Easy
119	Pascal's Triangle II	37%	Easy
120	Triangle	34%	Medium	❤
121	Best Time to Buy and Sell Stock	42%	Easy
122	Best Time to Buy and Sell Stock II	47%	Easy
123	Best Time to Buy and Sell Stock III	30%	Hard
124	Binary Tree Maximum Path Sum	26%	Hard	❤
125	Valid Palindrome	26%	Easy
126	Word Ladder II	14%	Hard	❤
127	Word Ladder	19%	Medium	❤
128	Longest Consecutive Sequence	37%	Hard
129	Sum Root to Leaf Numbers	37%	Medium
130	Surrounded Regions	19%	Medium	❤
131	Palindrome Partitioning	34%	Medium	❤
132	Palindrome Partitioning II	24%	Hard	❤
134	Gas Station	29%	Medium	❤
135	Candy	25%	Hard
136	Single Number	55%	Easy
137	Single Number II	42%	Medium	❤
139	Word Break	31%	Medium	❤
140	Word Break II	24%	Hard	❤
143	Reorder List	26%	Medium	❤
144	Binary Tree Preorder Traversal	46%	Medium	❤
145	Binary Tree Postorder Traversal	41%	Hard
146	LRU Cache	19%	Hard	❤
147	Insertion Sort List	33%	Medium	❤
148	Sort List	29%	Medium	❤
149	Max Points on a Line	15%	Hard	❤
150	Evaluate Reverse Polish Notation	27%	Medium
152	Maximum Product Subarray	26%	Medium	❤
153	Find Minimum in Rotated Sorted Array	40%	Medium
154	Find Minimum in Rotated Sorted Array II	37%	Hard
155	Min Stack	30%	Easy
162	Find Peak Element	38%	Medium
164	Maximum Gap	29%	Hard
165	Compare Version Numbers	20%	Medium
166	Fraction to Recurring Decimal	17%	Medium	❤
167	Two Sum II - Input array is sorted	47%	Easy
168	Excel Sheet Column Title	26%	Easy	❤
169	Majority Element	47%	Easy	❤
171	Excel Sheet Column Number	48%	Easy
172	Factorial Trailing Zeroes	36%	Easy
174	Dungeon Game	23%	Hard	❤
179	Largest Number	23%	Medium	❤
187	Repeated DNA Sequences	32%	Medium
188	Best Time to Buy and Sell Stock IV	24%	Hard	❤
189	Rotate Array	25%	Easy
198	House Robber	39%	Easy	❤
199	Binary Tree Right Side View	41%	Medium
200	Number of Islands	35%	Medium
201	Bitwise AND of Numbers Range	34%	Medium	❤
202	Happy Number	41%	Easy
203	Remove Linked List Elements	33%	Easy
204	Count Primes	26%	Easy	❤
205	Isomorphic Strings	34%	Easy	❤
206	Reverse Linked List	46%	Easy
207	Course Schedule	33%	Medium	❤
208	Implement Trie (Prefix Tree)	30%	Medium	❤
209	Minimum Size Subarray Sum	31%	Medium
210	Course Schedule II	29%	Medium
211	Add and Search Word - Data structure design	24%	Medium	❤
212	Word Search II	24%	Hard	❤
213	House Robber II	34%	Medium
214	Shortest Palindrome	24%	Hard	❤
215	Kth Largest Element in an Array	40%	Medium	❤
216	Combination Sum III	46%	Medium
217	Contains Duplicate	46%	Easy
218	The Skyline Problem	28%	Hard	❤
219	Contains Duplicate II	32%	Easy
220	Contains Duplicate III	18%	Medium	❤
221	Maximal Square	29%	Medium	❤
223	Rectangle Area	33%	Medium
224	Basic Calculator	28%	Hard
225	Implement Stack using Queues	33%	Easy
226	Invert Binary Tree	52%	Easy
227	Basic Calculator II	29%	Medium
228	Summary Ranges	31%	Medium
229	Majority Element II	28%	Medium	❤
230	Kth Smallest Element in a BST	44%	Medium
231	Power of Two	40%	Easy
232	Implement Queue using Stacks	37%	Easy
233	Number of Digit One	28%	Hard	❤
234	Palindrome Linked List	33%	Easy
238	Product of Array Except Self	50%	Medium
239	Sliding Window Maximum	33%	Hard	❤
240	Search a 2D Matrix II	38%	Medium	❤
241	Different Ways to Add Parentheses	45%	Medium
242	Valid Anagram	47%	Easy
257	Binary Tree Paths	40%	Easy
258	Add Digits	51%	Easy
260	Single Number III	52%	Medium	❤
263	Ugly Number	39%	Easy
264	Ugly Number II	33%	Medium	❤
268	Missing Number	44%	Easy
273	Integer to English Words	22%	Hard	❤
274	H-Index	33%	Medium
275	H-Index II	34%	Medium	❤
279	Perfect Squares	37%	Medium	❤
282	Expression Add Operators	30%	Hard	❤
283	Move Zeroes	51%	Easy
287	Find the Duplicate Number	43%	Medium	❤
289	Game of Life	37%	Medium	❤
290	Word Pattern	33%	Easy
292	Nim Game	55%	Easy	❤
295	Find Median from Data Stream	28%	Hard	❤
299	Bulls and Cows	35%	Medium
300	Longest Increasing Subsequence	38%	Medium	❤
301	Remove Invalid Parentheses	35%	Hard	❤
303	Range Sum Query - Immutable	31%	Easy
304	Range Sum Query 2D - Immutable	26%	Medium
306	Additive Number	27%	Medium
307	Range Sum Query - Mutable	21%	Medium
309	Best Time to Buy and Sell Stock with Cooldown	41%	Medium	❤
310	Minimum Height Trees	28%	Medium
312	Burst Balloons	43%	Hard	❤
313	Super Ugly Number	38%	Medium	❤
315	Count of Smaller Numbers After Self	34%	Hard	❤
316	Remove Duplicate Letters	30%	Hard	❤
318	Maximum Product of Word Lengths	45%	Medium	❤
319	Bulb Switcher	42%	Medium	❤
321	Create Maximum Number	24%	Hard	❤
322	Coin Change	26%	Medium	❤
324	Wiggle Sort II	26%	Medium
326	Power of Three	40%	Easy	❤
327	Count of Range Sum	30%	Hard	❤
328	Odd Even Linked List	44%	Medium	❤
329	Longest Increasing Path in a Matrix	37%	Hard	❤
330	Patching Array	32%	Hard
331	Verify Preorder Serialization of a Binary Tree	36%	Medium	❤
332	Reconstruct Itinerary	29%	Medium	❤
334	Increasing Triplet Subsequence	40%	Medium	❤
335	Self Crossing	25%	Hard
336	Palindrome Pairs	26%	Hard	❤
337	House Robber III	44%	Medium	❤
338	Counting Bits	61%	Medium
342	Power of Four	38%	Easy
343	Integer Break	46%	Medium
344	Reverse String	59%	Easy
345	Reverse Vowels of a String	38%	Easy
347	Top K Frequent Elements	49%	Medium
349	Intersection of Two Arrays	47%	Easy
350	Intersection of Two Arrays II	44%	Easy	❤
352	Data Stream as Disjoint Intervals	40%	Hard
354	Russian Doll Envelopes	32%	Hard	❤
355	Design Twitter	25%	Medium	❤
357	Count Numbers with Unique Digits	46%	Medium	❤
363	Max Sum of Rectangle No Larger Than K	33%	Hard	❤
365	Water and Jug Problem	27%	Medium	❤
367	Valid Perfect Square	38%	Easy
368	Largest Divisible Subset	33%	Medium	❤
371	Sum of Two Integers	51%	Easy	❤
372	Super Pow	34%	Medium
373	Find K Pairs with Smallest Sums	31%	Medium	❤
375	Guess Number Higher or Lower II	36%	Medium
376	Wiggle Subsequence	36%	Medium	❤
377	Combination Sum IV	42%	Medium
378	Kth Smallest Element in a Sorted Matrix	45%	Medium	❤
380	Insert Delete GetRandom O(1)	39%	Medium	❤
381	Insert Delete GetRandom O(1) - Duplicates allowed	29%	Hard	❤
382	Linked List Random Node	47%	Medium
383	Ransom Note	47%	Easy
384	Shuffle an Array	47%	Medium	❤
385	Mini Parser	30%	Medium	❤
387	First Unique Character in a String	47%	Easy
388	Longest Absolute File Path	37%	Medium
389	Find the Difference	51%	Easy
390	Elimination Game	42%	Medium	❤
391	Perfect Rectangle	27%	Hard
392	Is Subsequence	44%	Medium	❤
393	UTF-8 Validation	34%	Medium	❤
394	Decode String	41%	Medium
395	Longest Substring with At Least K Repeating Characters	35%	Medium
396	Rotate Function	33%	Medium	❤
397	Integer Replacement	30%	Medium	❤
398	Random Pick Index	44%	Medium
399	Evaluate Division	41%	Medium	❤
400	Nth Digit	30%	Easy	❤
401	Binary Watch	44%	Easy
402	Remove K Digits	26%	Medium	❤
403	Frog Jump	32%	Hard	❤
404	Sum of Left Leaves	47%	Easy
405	Convert a Number to Hexadecimal	41%	Easy
406	Queue Reconstruction by Height	56%	Medium	❤
407	Trapping Rain Water II	37%	Hard
409	Longest Palindrome	45%	Easy
410	Split Array Largest Sum	38%	Hard
412	Fizz Buzz	58%	Easy
413	Arithmetic Slices	54%	Medium
414	Third Maximum Number	27%	Easy
415	Add Strings	41%	Easy
416	Partition Equal Subset Sum	39%	Medium	❤
417	Pacific Atlantic Water Flow	34%	Medium
419	Battleships in a Board	62%	Medium
420	Strong Password Checker	20%	Hard	❤
421	Maximum XOR of Two Numbers in an Array	47%	Medium	❤
423	Reconstruct Original Digits from English	44%	Medium
424	Longest Repeating Character Replacement	42%	Medium	❤
432	All O`one Data Structure	28%	Hard	❤
434	Number of Segments in a String	36%	Easy
435	Non-overlapping Intervals	41%	Medium	❤
436	Find Right Interval	41%	Medium
437	Path Sum III	40%	Easy	❤
438	Find All Anagrams in a String	33%	Easy
440	K-th Smallest in Lexicographical Order	25%	Hard	❤
441	Arranging Coins	36%	Easy
442	Find All Duplicates in an Array	56%	Medium
443	String Compression	36%	Easy	❤
445	Add Two Numbers II	45%	Medium	❤
446	Arithmetic Slices II - Subsequence	27%	Hard	❤
447	Number of Boomerangs	46%	Easy
448	Find All Numbers Disappeared in an Array	51%	Easy
450	Delete Node in a BST	37%	Medium	❤
451	Sort Characters By Frequency	51%	Medium
452	Minimum Number of Arrows to Burst Balloons	44%	Medium
453	Minimum Moves to Equal Array Elements	47%	Easy
454	4Sum II	47%	Medium
455	Assign Cookies	47%	Easy
456	132 Pattern	28%	Medium	❤
459	Repeated Substring Pattern	38%	Easy	❤
460	LFU Cache	24%	Hard
461	Hamming Distance	69%	Easy
462	Minimum Moves to Equal Array Elements II	51%	Medium
463	Island Perimeter	57%	Easy
464	Can I Win	25%	Medium	❤
466	Count The Repetitions	27%	Hard	❤
467	Unique Substrings in Wraparound String	33%	Medium	❤
468	Validate IP Address	20%	Medium
472	Concatenated Words	30%	Hard
473	Matchsticks to Square	35%	Medium	❤
474	Ones and Zeroes	39%	Medium
475	Heaters	29%	Easy
476	Number Complement	60%	Easy
477	Total Hamming Distance	47%	Medium	❤
479	Largest Palindrome Product	24%	Easy
480	Sliding Window Median	31%	Hard	❤
481	Magical String	45%	Medium
482	License Key Formatting	40%	Easy
483	Smallest Good Base	33%	Hard	❤
485	Max Consecutive Ones	54%	Easy
486	Predict the Winner	45%	Medium
488	Zuma Game	37%	Hard	❤
491	Increasing Subsequences	39%	Medium	❤
492	Construct the Rectangle	48%	Easy	❤
493	Reverse Pairs	21%	Hard
494	Target Sum	43%	Medium	❤
495	Teemo Attacking	51%	Medium
496	Next Greater Element I	56%	Easy
498	Diagonal Traverse	46%	Medium
500	Keyboard Row	59%	Easy
501	Find Mode in Binary Search Tree	37%	Easy	❤
502	IPO	36%	Hard
503	Next Greater Element II	47%	Medium	❤
504	Base 7	44%	Easy
506	Relative Ranks	46%	Easy
507	Perfect Number	33%	Easy
508	Most Frequent Subtree Sum	52%	Medium
513	Find Bottom Left Tree Value	56%	Medium
514	Freedom Trail	39%	Hard
515	Find Largest Value in Each Tree Row	55%	Medium
516	Longest Palindromic Subsequence	42%	Medium	❤
517	Super Washing Machines	36%	Hard	❤
520	Detect Capital	52%	Easy
521	Longest Uncommon Subsequence I	55%	Easy
522	Longest Uncommon Subsequence II	31%	Medium
523	Continuous Subarray Sum	23%	Medium	❤
524	Longest Word in Dictionary through Deleting	43%	Medium
525	Contiguous Array	41%	Medium	❤
526	Beautiful Arrangement	53%	Medium	❤
529	Minesweeper	49%	Medium
530	Minimum Absolute Difference in BST	47%	Easy	❤
532	K-diff Pairs in an Array	28%	Easy
537	Complex Number Multiplication	63%	Medium
538	Convert BST to Greater Tree	49%	Easy
539	Minimum Time Difference	46%	Medium
540	Single Element in a Sorted Array	56%	Medium
541	Reverse String II	43%	Easy
542	01 Matrix	32%	Medium	❤
543	Diameter of Binary Tree	44%	Easy
546	Remove Boxes	35%	Hard	❤
547	Friend Circles	49%	Medium	❤
551	Student Attendance Record I	44%	Easy
552	Student Attendance Record II	31%	Hard	❤
553	Optimal Division	55%	Medium
554	Brick Wall	46%	Medium
556	Next Greater Element III	29%	Medium
557	Reverse Words in a String III	59%	Easy
560	Subarray Sum Equals K	40%	Medium	❤
561	Array Partition I	66%	Easy
563	Binary Tree Tilt	47%	Easy
564	Find the Closest Palindrome	17%	Hard
565	Array Nesting	49%	Medium
566	Reshape the Matrix	58%	Easy
567	Permutation in String	36%	Medium
572	Subtree of Another Tree	40%	Easy	❤
575	Distribute Candies	58%	Easy
576	Out of Boundary Paths	30%	Medium	❤
581	Shortest Unsorted Continuous Subarray	29%	Easy	❤
583	Delete Operation for Two Strings	44%	Medium	❤
587	Erect the Fence	32%	Hard	❤
591	Tag Validator	30%	Hard
592	Fraction Addition and Subtraction	45%	Medium
593	Valid Square	40%	Medium
594	Longest Harmonious Subsequence	41%	Easy
598	Range Addition II	48%	Easy
599	Minimum Index Sum of Two Lists	46%	Easy
600	Non-negative Integers without Consecutive Ones	31%	Hard	❤
605	Can Place Flowers	30%	Easy	❤
606	Construct String from Binary Tree	49%	Easy
609	Find Duplicate File in System	52%	Medium
611	Valid Triangle Number	42%	Medium	❤
617	Merge Two Binary Trees	67%	Easy
621	Task Scheduler	42%	Medium	❤
623	Add One Row to Tree	46%	Medium
628	Maximum Product of Three Numbers	45%	Easy	❤
629	K Inverse Pairs Array	26%	Hard
630	Course Schedule III	29%	Hard	❤
632	Smallest Range	42%	Hard
633	Sum of Square Numbers	32%	Easy
636	Exclusive Time of Functions	44%	Medium	❤
637	Average of Levels in Binary Tree	55%	Easy
638	Shopping Offers	44%	Medium	❤
639	Decode Ways II	24%	Hard
640	Solve the Equation	38%	Medium
643	Maximum Average Subarray I	37%	Easy
645	Set Mismatch	40%	Easy	❤
646	Maximum Length of Pair Chain	47%	Medium
647	Palindromic Substrings	55%	Medium	❤
648	Replace Words	47%	Medium
649	Dota2 Senate	36%	Medium	❤
650	2 Keys Keyboard	44%	Medium
652	Find Duplicate Subtrees	37%	Medium
653	Two Sum IV - Input is a BST	50%	Easy
654	Maximum Binary Tree	69%	Medium	❤
655	Print Binary Tree	49%	Medium
657	Judge Route Circle	68%	Easy
658	Find K Closest Elements	35%	Medium	❤
659	Split Array into Consecutive Subsequences	36%	Medium	❤
661	Image Smoother	46%	Easy
662	Maximum Width of Binary Tree	38%	Medium
664	Strange Printer	33%	Hard	❤
665	Non-decreasing Array	20%	Easy
667	Beautiful Arrangement II	51%	Medium
668	Kth Smallest Number in Multiplication Table	38%	Hard
669	Trim a Binary Search Tree	58%	Easy
670	Maximum Swap	38%	Medium	❤
671	Second Minimum Node In a Binary Tree	41%	Easy
672	Bulb Switcher II	48%	Medium
673	Number of Longest Increasing Subsequence	31%	Medium	❤
674	Longest Continuous Increasing Subsequence	42%	Easy
675	Cut Off Trees for Golf Event	27%	Hard
676	Implement Magic Dictionary	49%	Medium
677	Map Sum Pairs	52%	Medium	❤
678	Valid Parenthesis String	29%	Medium	❤
679	24 Game	38%	Hard	❤
680	Valid Palindrome II	32%	Easy
682	Baseball Game	58%	Easy
684	Redundant Connection	41%	Medium
685	Redundant Connection II	28%	Hard	❤
686	Repeated String Match	34%	Easy	❤
687	Longest Univalue Path	33%	Easy
688	Knight Probability in Chessboard	39%	Medium
689	Maximum Sum of 3 Non-Overlapping Subarrays	41%	Hard
691	Stickers to Spell Word	34%	Hard	❤
692	Top K Frequent Words	41%	Medium
693	Binary Number with Alternating Bits	55%	Easy
695	Max Area of Island	52%	Easy	❤
696	Count Binary Substrings	51%	Easy
697	Degree of an Array	46%	Easy
698	Partition to K Equal Sum Subsets	37%	Medium	❤
699	Falling Squares	37%	Hard
712	Minimum ASCII Delete Sum for Two Strings	51%	Medium	❤
713	Subarray Product Less Than K	33%	Medium	❤
714	Best Time to Buy and Sell Stock with Transaction Fee	43%	Medium	❤
715	Range Module	30%	Hard
717	1-bit and 2-bit Characters	49%	Easy
718	Maximum Length of Repeated Subarray	40%	Medium	❤
719	Find K-th Smallest Pair Distance	26%	Hard	❤
720	Longest Word in Dictionary	41%	Easy
721	Accounts Merge	31%	Medium	❤
722	Remove Comments	26%	Medium	❤
724	Find Pivot Index	40%	Easy
725	Split Linked List in Parts	48%	Medium
726	Number of Atoms	44%	Hard	❤
728	Self Dividing Numbers	67%	Easy
729	My Calendar I	40%	Medium
730	Count Different Palindromic Subsequences	34%	Hard	❤
731	My Calendar II	36%	Medium	❤
732	My Calendar III	54%	Hard
733	Flood Fill	48%	Easy
735	Asteroid Collision	37%	Medium
736	Parse Lisp Expression	42%	Hard	❤
738	Monotone Increasing Digits	41%	Medium
739	Daily Temperatures	53%	Medium	❤
740	Delete and Earn	42%	Medium	❤
741	Cherry Pickup	22%	Hard
744	Network Delay Time	33%	Medium
745	Find Smallest Letter Greater Than Target	47%	Easy
746	Prefix and Suffix Search	23%	Hard
747	Min Cost Climbing Stairs	45%	Easy
748	Largest Number At Least Twice of Others	46%	Easy
749	Shortest Completing Word	54%	Medium
750	Contain Virus	39%	Hard
753	Open the Lock	37%	Medium	❤
754	Cracking the Safe	39%	Hard	❤
755	Reach a Number	23%	Medium	❤
756	Pour Water	33%	Medium
757	Pyramid Transition Matrix	40%	Medium	❤
759	Set Intersection Size At Least Two	33%	Hard

以下免费的算法题，暂时不能使用 Go 解答

• 116.Populating Next Right Pointers in Each Node
• 117.Populating Next Right Pointers in Each Node II
• 133.Clone Graph
• 138.Copy List with Random Pointer
• 141.Linked List Cycle
• 142.Linked List Cycle II
• 151.Reverse Words in a String
• 160.Intersection of Two Linked Lists
• 173.Binary Search Tree Iterator
• 190.Reverse Bits
• 191.Number of 1 Bits
• 222.Count Complete Tree Nodes
• 235.Lowest Common Ancestor of a Binary Search Tree
• 236.Lowest Common Ancestor of a Binary Tree
• 237.Delete Node in a Linked List
• 278.First Bad Version
• 284.Peeking Iterator
• 297.Serialize and Deserialize Binary Tree
• 341.Flatten Nested List Iterator
• 374.Guess Number Higher or Lower
• 386.Lexicographical Numbers
• 449.Serialize and Deserialize BST
• 535.Encode and Decode TinyURL
• 690.Employee Importance

helper

helper 会处理大部分琐碎的工作。

notes

notes 记录了我答题过程中，对知识点的总结。

kit

针对 LeetCode 中经常出现的以下数据结构，在 kit 中进行了定义，并添加了与 []int 相互转换的函数。利用 Go 1.9 新添加的 type alias 功能，易于添加单元测试。

• Heap
• Interval
• ListNode
• NestedInteger
• PriorityQueue
• Queue
• Stack
• TreeNode