Files

.gitignore
1. Two Sum.py
100. Same Tree.py
101. Symmetric Tree.py
102. Binary Tree Level Order Traversal.py
103. Binary Tree Zigzag Level Order Traversal.py
104. Maximum Depth of Binary Tree.py
105. Construct Binary Tree from Preorder and Inorder Traversal.py
106. Construct Binary Tree from Inorder and Postorder Traversal.py
108. Convert Sorted Array to Binary Search Tree.py
11. Container With Most Water.py
110. Balanced Binary Tree.py
111. Minimum Depth of Binary Tree.py
112. Path Sum.py
113. Path Sum II.py
114. Flatten Binary Tree to Linked List.py
115. Distinct Subsequences.py
116. Populating Next Right Pointers in Each Node.py
117. Populating Next Right Pointers in Each Node II.py
118. Pascal's Triangle.py
119. Pascal's Triangle II.py
12. Integer to Roman.py
120. Triangle.py
121. Best Time to Buy and Sell Stock.py
122. Best Time to Buy and Sell Stock II.py
123. Best Time to Buy and Sell Stock III.py
124. Binary Tree Maximum Path Sum.py
125. Valid Palindrome.py
126. Word Ladder II.py
127. Word Ladder.py
128. Longest Consecutive Sequence.py
129. Sum Root to Leaf Numbers.py
13. Roman to Integer.py
130. Surrounded Regions.py
131. Palindrome Partitioning.py
132. Palindrome Partitioning II.py
133. Clone Graph.py
134. Gas Station.py
136. Single Number.py
137. Single Number II.py
138. Copy List with Random Pointer.py
139. Word Break.py
14. Longest Common Prefix.py
140. Word Break II.py
141. Linked List Cycle.py
142. Linked List Cycle II.py
143. Reorder List.py
144. Binary Tree Preorder Traversal.py
145. Binary Tree Postorder Traversal.py
146. LRU Cache.py
147. Insertion Sort List.py
148. Sort List.py
149. Max Points on a Line.py
15. 3Sum.py
150. Evaluate Reverse Polish Notation.py
151. Reverse Words in a String.py
152. Maximum Product Subarray.py
153. Find Minimum in Rotated Sorted Array.py
154. Find Minimum in Rotated Sorted Array II.py
155. Min Stack.py
16. 3Sum Closest.py
162. Find Peak Element.py
164. Maximum Gap.py
165. Compare Version Numbers.py
167. Two Sum II - Input array is sorted.py
168. Excel Sheet Column Title.py
169. Majority Element.py
17. Letter Combinations of a Phone Number.py
171. Excel Sheet Column Number.py
172. Factorial Trailing Zeroes.py
173. Binary Search Tree Iterator.py
174. Dungeon Game.py
179. Largest Number.py
187. Repeated DNA Sequences.py
188. Best Time to Buy and Sell Stock IV.py
189. Rotate Array.py
19. Remove Nth Node From End of List.py
190. Reverse Bits.py
191. Number of 1 Bits.py
198. House Robber.py
199. Binary Tree Right Side View.py
2. Add Two Numbers.py
20. Valid Parentheses.py
200. Number of Islands.py
201. Bitwise AND of Numbers Range.py
202. Happy Number.py
203. Remove Linked List Elements.py
204. Count Primes.py
205. Isomorphic Strings.py
206. Reverse Linked List.py
207. Course Schedule.py
208. Implement Trie (Prefix Tree).py
209. Minimum Size Subarray Sum.py
210. Course Schedule II.py
211. Add and Search Word - Data structure design.py
212. Word Search II.py
213. House Robber II.py
214. Shortest Palindrome.py
215. Kth Largest Element in an Array.py
216. Combination Sum III.py
217. Contains Duplicate.py
218. The Skyline Problem.py
219. Contains Duplicate II.py
22. Generate Parentheses.py
220. Contains Duplicate III.py
221. Maximal Square.py
222. Count Complete Tree Nodes.py
223. Rectangle Area.py
224. Basic Calculator.py
225. Implement Stack using Queues.py
226. Invert Binary Tree.py
227. Basic Calculator II.py
228. Summary Ranges.py
229. Majority Element II.py
230. Kth Smallest Element in a BST.py
231. Power of Two.py
232. Implement Queue using Stacks.py
233. Number of Digit One.py
234. Palindrome Linked List.py
235. Lowest Common Ancestor of a Binary Search Tree.py
236. Lowest Common Ancestor of a Binary Tree.py
237. Delete Node in a Linked List.py
238. Product of Array Except Self.py
239. Sliding Window Maximum.py
240. Search a 2D Matrix II.py
241. Different Ways to Add Parentheses.py
242. Valid Anagram.py
257. Binary Tree Paths.py
258. Add Digits.py
260. Single Number III.py
263. Ugly Number.py
264. Ugly Number II.py
268. Missing Number.py
274. H-Index.py
275. H-Index II.py
278. First Bad Version.py
279. Perfect Squares.py
282. Expression Add Operators.py
283. Move Zeroes.py
284. Peeking Iterator.py
289. Game of Life.py
290. Word Pattern.py
292. Nim Game.py
295. Find Median from Data Stream.py
297. Serialize and Deserialize Binary Tree.py
299. Bulls and Cows.py
3. Longest Substring Without Repeating Characters.py
30. Substring with Concatenation of All Words.py
300. Longest Increasing Subsequence.py
301. Remove Invalid Parentheses.py
303. Range Sum Query - Immutable.py
304. Range Sum Query 2D - Immutable.py
306. Additive Number.py
313. Super Ugly Number.py
37. Sudoku Solver.py
4. Median of Two Sorted Arrays.py
41. First Missing Positive.py
44. Wildcard Matching.py
45. Jump Game II.py
46. Permutations.py
47. Permutations II.py
48. Rotate Image.py
5. Longest Palindromic Substring.py
51. N-Queens.py
52. N-Queens II.py
53. Maximum Subarray.py
54. Spiral Matrix.py
55. Jump Game.py
56. Merge Intervals.py
57. Insert Interval.py
58. Length of Last Word.py
59. Spiral Matrix II.py
6. ZigZag Conversion.py
60. Permutation Sequence.py
61. Rotate List.py
62. Unique Paths.py
63. Unique Paths II.py
64. Minimum Path Sum.py
66. Plus One.py
67. Add Binary.py
7. Reverse Integer.py
70. Climbing Stairs.py
72. Edit Distance.py
73. Set Matrix Zeroes.py
74. Search a 2D Matrix.py
75. Sort Colors.py
76. Minimum Window Substring.py
77. Combinations.py
78. Subsets.py
79. Word Search.py
80. Remove Duplicates from Sorted Array II.py
84. Largest Rectangle in Histogram.py
85. Maximal Rectangle.py
9. Palindrome Number.py
94. Binary Tree Inorder Traversal.py
95. Unique Binary Search Trees II.py
96. Unique Binary Search Trees.py
97. Interleaving String.py
98. Validate Binary Search Tree.py
99. Recover Binary Search Tree.py
README.md

202. Happy Number.py

Mar 26, 2019

18b06fe · Mar 26, 2019