leetcode题目整理

374. Guess Number Higher or Lower	31.70%	Easy
373. Find K Pairs with Smallest Sums	25.50%	Medium
371. Sum of Two Integers	54.00%	Easy
368. Largest Divisible Subset	32.00%	Medium
367. Valid Perfect Square	36.60%	Medium
365. Water and Jug Problem	20.10%	Medium
357. Count Numbers with Unique Digits	42.50%	Medium
355. Design Twitter	22.20%	Medium
350. Intersection of Two Arrays II	41.50%	Easy
349. Intersection of Two Arrays	47.80%	Easy
347. Top K Frequent Elements	44.50%	Medium
345. Reverse Vowels of a String	35.30%	Easy
344. Reverse String	58.90%	Easy
343. Integer Break	43.60%	Medium
342. Power of Four	34.10%	Easy
341. Flatten Nested List Iterator	18.70%	Medium
338. Counting Bits	55.40%	Medium
337. House Robber III	37.00%	Medium
332. Reconstruct Itinerary	23.40%	Medium
331. Verify Preorder Serialization of a Binary Tree	31.50%	Medium
330. Patching Array	28.80%	Medium
328. Odd Even Linked List	37.80%	Easy
326. Power of Three	35.30%	Easy
324. Wiggle Sort II	20.10%	Medium
322. Coin Change	24.90%	Medium
319. Bulb Switcher	39.20%	Medium
318. Maximum Product of Word Lengths	38.70%	Medium
313. Super Ugly Number	31.20%	Medium
310. Minimum Height Trees	20.20%	Medium
309. Best Time to Buy and Sell Stock with Cooldown	32.60%	Medium
307. Range Sum Query - Mutable	14.50%	Medium
304. Range Sum Query 2D - Immutable	21.50%	Medium
303. Range Sum Query - Immutable	25.70%	Easy
300. Longest Increasing Subsequence	31.50%	Medium
299. Bulls and Cows	23.80%	Easy
292. Nim Game	49.50%	Easy
290. Word Pattern	26.50%	Easy
289. Game of Life	32.60%	Medium
287. Find the Duplicate Number	32.80%	Hard
284. Peeking Iterator	31.00%	Medium
283. Move Zeroes	41.40%	Easy
279. Perfect Squares	28.80%	Medium
278. First Bad Version	19.80%	Easy
275. H-Index II	31.40%	Medium
274. H-Index	25.30%	Medium
268. Missing Number	34.70%	Medium
264. Ugly Number II	21.60%	Medium
263. Ugly Number	32.6%	Easy
260. Single Number III	37.60%	Medium
258. Add Digits	46.50%	Easy
257. Binary Tree Paths	21.90%	Easy
242. Valid Anagram	39.30%	Easy
241. Different Ways to Add Parentheses	27.10%	Medium
240. Search a 2D Matrix II	31.40%	Medium
238. Product of Array Except Self	42.40%	Medium
237. Delete Node in a Linked List	50.90%	Easy
236. Lowest Common Ancestor of a Binary Tree	28.30%	Medium
235. Lowest Common Ancestor of a Binary Search Tree	38.90%	Medium
234. Palindrome Linked List	23.80%	Easy
232. Implement Queue using Stacks	37.40%	Easy
231. Power of Two	31.30%	Easy
230. Kth Smallest Element in a BST	30.50%	Medium
229. Majority Element II	30.50%	Medium
228. Summary Ranges	21.10%	Easy
227. Basic Calculator II	18.00%	Medium
226. Invert Binary Tree	35.40%	Easy
225. Implement Stack using Queues	29.60%	Medium
223. Rectangle Area	25.60%	Easy
222. Count Complete Tree Nodes	19.40%	Medium
221. Maximal Square	20.30%	Medium
220. Contains Duplicate III	15.30%	Medium
219. Contains Duplicate II	25.60%	Easy
217. Contains Duplicate	35.90%	Easy
216. Combination Sum III	27.70%	Medium
215. Kth Largest Element in an Array	27.30%	Medium
213. House Robber II	26.30%	Medium
211. Add and Search Word - Data structure design	20.70%	Medium
210. Course Schedule II	19.30%	Medium
209. Minimum Size Subarray Sum	22.90%	Medium
208. Implement Trie (Prefix Tree)	24.80%	Medium
207. Course Schedule	21.70%	Medium
206. Reverse Linked List	31.50%	Easy
205. Isomorphic Strings	24.20%	Easy
204. Count Primes	19.00%	Easy
203. Remove Linked List Elements	25.80%	Easy
202. Happy Number	31.40%	Easy
201. Bitwise AND of Numbers Range	23.30%	Medium
200. Number of Islands	21.90%	Medium
199. Binary Tree Right Side View	27.10%	Medium
198. House Robber	28.80%	Easy
191. Number of 1 Bits	37.30%	Easy
190. Reverse Bits	28.40%	Easy
189. Rotate Array	17.80%	Easy
187. Repeated DNA Sequences	19.50%	Medium
179. Largest Number	15.70%	Medium
173. Binary Search Tree Iterator	29.30%	Medium
172. Factorial Trailing Zeroes	28.40%	Easy
171. Excel Sheet Column Number	36.50%	Easy
169. Majority Element	35.00%	Easy
168. Excel Sheet Column Title	18.10%	Easy
166. Fraction to Recurring Decimal	12.70%	Medium
165. Compare Version Numbers	15.20%	Easy
162. Find Peak Element	31.50%	Medium
160. Intersection of Two Linked Lists	28.70%	Easy
155. Min Stack	18.50%	Easy
153. Find Minimum in Rotated Sorted Array	33.30%	Medium
152. Maximum Product Subarray	19.40%	Medium
151. Reverse Words in a String	15.10%	Medium
150. Evaluate Reverse Polish Notation	21.10%	Medium
148. Sort List	22.00%	Medium
147. Insertion Sort List	26.40%	Medium
144. Binary Tree Preorder Traversal	36.30%	Medium
143. Reorder List	21.00%	Medium
142. Linked List Cycle II	31.40%	Medium
141. Linked List Cycle	36.30%	Medium
137. Single Number II	35.00%	Medium
136. Single Number	45.10%	Medium
134. Gas Station	25.70%	Medium
133. Clone Graph	24.00%	Medium
131. Palindrome Partitioning	26.70%	Medium
130. Surrounded Regions	14.60%	Medium
129. Sum Root to Leaf Numbers	30.30%	Medium
125. Valid Palindrome	22.00%	Easy
122. Best Time to Buy and Sell Stock II	38.30%	Medium
121. Best Time to Buy and Sell Stock	32.60%	Medium
120. Triangle	27.40%	Medium
119. Pascal's Triangle II	29.40%	Easy
118. Pascal's Triangle	30.10%	Easy
116. Populating Next Right Pointers in Each Node	36.20%	Medium
114. Flatten Binary Tree to Linked List	28.80%	Medium
113. Path Sum II	26.60%	Medium
112. Path Sum	29.80%	Easy
111. Minimum Depth of Binary Tree	29.10%	Easy
110. Balanced Binary Tree	32.00%	Easy
109. Convert Sorted List to Binary Search Tree	27.90%	Medium
108. Convert Sorted Array to Binary Search Tree	34.00%	Medium
107. Binary Tree Level Order Traversal II	31.10%	Easy
106. Construct Binary Tree from Inorder and Postorder Traversal	26.80%	Medium
105. Construct Binary Tree from Preorder and Inorder Traversal	26.40%	Medium
104. Maximum Depth of Binary Tree	45.10%	Easy
103. Binary Tree Zigzag Level Order Traversal	26.40%	Medium
102. Binary Tree Level Order Traversal	29.30%	Easy
101. Symmetric Tree	31.60%	Easy
100. Same Tree	41.80%	Easy
98. Validate Binary Search Tree	20.60%	Medium
96. Unique Binary Search Trees	36.00%	Medium
95. Unique Binary Search Trees II	28.00%	Medium
94. Binary Tree Inorder Traversal	36.20%	Medium
93. Restore IP Addresses	21.00%	Medium
92. Reverse Linked List II	26.10%	Medium
91. Decode Ways	16.40%	Medium
90. Subsets II	27.70%	Medium
89. Gray Code	32.80%	Medium
88. Merge Sorted Array	29.70%	Easy
86. Partition List	27.50%	Medium
85. Maximal Rectangle	22.00%	Hard
83. Remove Duplicates from Sorted List	34.50%	Easy
82. Remove Duplicates from Sorted List II	25.00%	Medium
81. Search in Rotated Sorted Array II	31.40%	Medium
80. Remove Duplicates from Sorted Array II	30.50%	Medium
79. Word Search	20.30%	Medium
78. Subsets	28.20%	Medium
77. Combinations	30.90%	Medium
75. Sort Colors	32.60%	Medium
74. Search a 2D Matrix	31.60%	Medium
73. Set Matrix Zeroes	31.40%	Medium
71. Simplify Path	20.00%	Medium
70. Climbing Stairs	34.40%	Easy
69. Sqrt(x)	23.10%	Medium
66. Plus One	30.40%	Easy
64. Minimum Path Sum	32.20%	Medium
63. Unique Paths II	28.00%	Medium
62. Unique Paths	32.80%	Medium
61. Rotate List	21.70%	Medium
60. Permutation Sequence	22.80%	Medium
59. Spiral Matrix II	31.80%	Medium
58. Length of Last Word	28.00%	Easy
55. Jump Game	27.00%	Medium
54. Spiral Matrix	20.80%	Medium
53. Maximum Subarray	34.50%	Medium
50. Pow(x, n)	26.70%	Medium
49. Group Anagrams	24.30%	Medium
48. Rotate Image	31.90%	Medium
47. Permutations II	25.80%	Hard
46. Permutations	31.90%	Medium
43. Multiply Strings	21.00%	Medium
40. Combination Sum II	25.20%	Medium
39. Combination Sum	27.90%	Medium
38. Count and Say	25.20%	Easy
36. Valid Sudoku	27.20%	Easy
35. Search Insert Position	35.40%	Medium
34. Search for a Range	27.50%	Medium
33. Search in Rotated Sorted Array	28.80%	Hard
31. Next Permutation	25.00%	Medium
29. Divide Two Integers	15.00%	Medium
28. Implement strStr()	22.20%	Easy
27. Remove Element	32.10%	Easy
26. Remove Duplicates from Sorted Array	31.30%	Easy
24. Swap Nodes in Pairs	32.50%	Medium
22. Generate Parentheses	32.60%	Medium
21. Merge Two Sorted Lists	32.70%	Easy
20. Valid Parentheses	26.50%	Easy
19. Remove Nth Node From End of List	27.10%	Easy
18. 4Sum	21.70%	Medium
17. Letter Combinations of a Phone Number	25.80%	Medium
16. 3Sum Closest	26.90%	Medium
15. 3Sum	16.90%	Medium
14. Longest Common Prefix	25.50%	Easy
13. Roman to Integer	34.00%	Easy
12. Integer to Roman	33.80%	Medium
11. Container With Most Water	32.00%	Medium
9. Palindrome Number	28.30%	Easy
8. String to Integer (atoi)	13.00%	Easy
7. Reverse Integer	25.10%	Easy
6. ZigZag Conversion	21.80%	Easy
5. Longest Palindromic Substring	20.70%	Medium
3. Longest Substring Without Repeating Characters	20.60%	Medium
2. Add Two Numbers	21.10%	Medium
1. Two Sum	17.70%	Medium