LeetCode

LeetCode Python Solutions by Yagao0o

#	Title	Solution	Solve Date	Difficulty
389	Find the Difference	Python	2016/08/31	Easy
256	Paint House			Medium
255	Verify Preorder Sequence in Binary Search Tree			Medium
254	Factor Combinations			Medium
253	Meeting Rooms II			Medium
252	Meeting Rooms			Easy
251	Flatten 2D Vector			Medium
250	Count Univalue Subtrees			Medium
249	Group Shifted Strings			Easy
248	Strobogrammatic Number III			Hard
247	Strobogrammatic Number II			Medium
246	Strobogrammatic Number			Easy
245	Shortest Word Distance III			Medium
244	Shortest Word Distance II			Medium
243	Shortest Word Distance			Easy
242	Valid Anagram			Easy
241	Different Ways to Add Parentheses			Medium
240	Search a 2D Matrix II			Medium
239	Sliding Window Maximum			Hard
238	Product of Array Except Self	Python	2015/09/02	Medium
237	Delete Node in a Linked List	Python	2015/09/02	Easy
236	Lowest Common Ancestor of a Binary Tree	Python	2015/09/02	Medium
235	Lowest Common Ancestor of a Binary Search Tree	Python	2015/08/15	Easy
234	Palindrome Linked List	Python	2015/08/15	Easy
233	Number of Digit One	Python	2015/08/07	Medium
232	Implement Queue using Stacks	Python	2015/08/06	Easy
231	Power of Two	Python	2015/08/06	Easy
230	Kth Smallest Element in a BST			Medium
229	Majority Element II			Medium
228	Summary Ranges	Python	2015/07/09	Easy
227	Basic Calculator II	Python	2015/06/24	Medium
226	Invert Binary Tree	Python	2015/06/24	Easy
225	Implement Stack using Queues	Python	2015/06/24	Medium
224	Basic Calculator	Python	2015/06/24	Medium
223	Rectangle Area	Python	2015/06/23	Easy
222	Count Complete Tree Nodes	Python	2015/06/23	Medium
221	Maximal Square	Python	2015/06/17	Medium
220	Contains Duplicate III	Python	2015/06/17	Medium
219	Contains Duplicate II	Python	2015/06/17	Easy
218	The Skyline Problem			Hard
217	Contains Duplicate	Python	2015/06/17	Easy
216	Combination Sum III	Python	2015/06/17	Medium
215	Kth Largest Element in an Array	Python	2015/06/17	Medium
214	Shortest Palindrome			Hard
213	House Robber II	Python	2015/06/17	Medium
212	Word Search II			Hard
211	Add and Search Word - Data structure design	Python	2015/06/16	Medium
210	Course Schedule II	Python	2015/06/16	Medium
209	Minimum Size Subarray Sum	Python	2015/06/16	Medium
208	Implement Trie (Prefix Tree)	Python	2015/06/16	Medium
207	Course Schedule	Python	2015/06/16	Medium
206	Reverse Linked List	Python	2015/06/16	Easy
205	Isomorphic Strings	Python	2015/06/16	Easy
204	Count Primes	Python	2015/06/16	Easy
203	Remove Linked List Elements	Python	2015/06/16	Easy
202	Happy Number	Python	2015/06/16	Easy
201	Bitwise AND of Numbers Range	Python	2015/06/15	Medium
200	Number of Islands	Python	2015/06/15	Medium
199	Binary Tree Right Side View	Python	2015/06/15	Medium
198	House Robber	Python	2015/06/14	Easy
191	Number of 1 Bits	Python	2015/06/14	Easy
190	Reverse Bits	Python	2015/06/14	Easy
189	Rotate Array	Python	2015/06/14	Easy
188	Best Time to Buy and Sell Stock IV			Hard
187	Repeated DNA Sequences	Python	2015/06/24	Medium
186	Reverse Words in a String II			Medium
179	Largest Number	Python	2015/06/14	Medium
174	Dungeon Game			Hard
173	Binary Search Tree Iterator	Python	2015/06/09	Medium
172	Factorial Trailing Zeroes	Python	2015/01/24	Easy
171	Excel Sheet Column Number	Python	2015/01/24	Easy
170	Two Sum III - Data structure design			Easy
169	Majority Element	Python	2015/01/24	Easy
168	Excel Sheet Column Title	Python	2015/01/04	Easy
167	Two Sum II - Input array is sorted			Medium
166	Fraction to Recurring Decimal	Python	2015/06/09	Medium
165	Compare Version Numbers	Python	2015/01/24	Easy
164	Maximum Gap			Hard
163	Missing Ranges			Medium
162	Find Peak Element	Python	2015/06/09	Medium
161	One Edit Distance			Medium
160	Intersection of Two Linked Lists	Python	2015/01/23	Easy
159	Longest Substring with At Most Two Distinct Characters			Hard
158	Read N Characters Given Read4 II - Call multiple times			Hard
157	Read N Characters Given Read4			Easy
156	Binary Tree Upside Down			Medium
155	Min Stack	Python	2014/11/10	Easy
154	Find Minimum in Rotated Sorted Array II	Python	2015/06/09	Hard
153	Find Minimum in Rotated Sorted Array	Python	2015/06/09	Medium
152	Maximum Product Subarray	Python	2015/06/09	Medium
151	Reverse Words in a String	Python	2015/06/08	Medium
150	Evaluate Reverse Polish Notation	Python	2015/06/08	Medium
149	Max Points on a Line			Hard
148	Sort List	Python	2015/06/08	Medium
147	Insertion Sort List	Python	2015/06/06	Medium
146	LRU Cache			Hard
145	Binary Tree Postorder Traversal			Hard
144	Binary Tree Preorder Traversal	Python	2015/06/05	Medium
143	Reorder List	Python	2015/06/05	Medium
142	Linked List Cycle II	Python	2015/06/03	Medium
141	Linked List Cycle	Python	2015/06/03	Medium
140	Word Break II			Hard
139	Word Break	Python	2015/06/02	Medium
138	Copy List with Random Pointer			Hard
137	Single Number II	Python	2015/06/01	Medium
136	Single Number	Python	2015/05/30	Medium
135	Candy			Hard
134	Gas Station	Python	2015/05/26	Medium
133	Clone Graph	Python	2015/05/26	Medium
132	Palindrome Partitioning II			Hard
131	Palindrome Partitioning	Python	2015/05/26	Medium
130	Surrounded Regions	Python	2015/05/25	Medium
129	Sum Root to Leaf Numbers	Python	2015/05/25	Medium
128	Longest Consecutive Sequence			Hard
127	Word Ladder	Python	2015/05/23	Medium
126	Word Ladder II			Hard
125	Valid Palindrome	Python	2013/11/5	Easy
124	Binary Tree Maximum Path Sum			Hard
123	Best Time to Buy and Sell Stock III	Python	2015/03/03	Hard
122	Best Time to Buy and Sell Stock II	Python	2015/03/01	Medium
121	Best Time to Buy and Sell Stock	Python	2015/03/01	Medium
120	Triangle	Python	2015/03/01	Medium
119	Pascal's Triangle II	Python	2014/11/10	Easy
118	Pascal's Triangle	Python	2014/11/10	Easy
117	Populating Next Right Pointers in Each Node II	Python	2015/03/01	Hard
116	Populating Next Right Pointers in Each Node	Python	2015/03/01	Medium
115	Distinct Subsequences			Hard
114	Flatten Binary Tree to Linked List	Python		Medium
113	Path Sum II	Python	2014/11/16	Medium
112	Path Sum	Python	2014/11/16	Easy
111	Minimum Depth of Binary Tree	Python	2014/11/16	Easy
110	Balanced Binary Tree	Python	2014/11/16	Easy
109	Convert Sorted List to Binary Search Tree	Python	2015/03/01	Medium
108	Convert Sorted Array to Binary Search Tree	Python	2015/03/01	Medium
107	Binary Tree Level Order Traversal II	Python	2015/01/23	Easy
106	Construct Binary Tree from Inorder and Postorder Traversal	Python	2015/03/01	Medium
105	Construct Binary Tree from Preorder and Inorder Traversal	Python	2015/03/01	Medium
104	Maximum Depth of Binary Tree	Python	2014/11/16	Easy
103	Binary Tree Zigzag Level Order Traversal	Python	2015/03/01	Medium
102	Binary Tree Level Order Traversal	Python	2015/01/23	Easy
101	Symmetric Tree	Python	2014/10/27	Easy
100	Same Tree	Python	2015/01/23	Easy
99	Recover Binary Search Tree			Hard
98	Validate Binary Search Tree	Python	2015/02/28	Medium
97	Interleaving String			Hard
96	Unique Binary Search Trees II	Python	2015/02/28	Medium
95	Unique Binary Search Trees	Python	2015/02/26	Medium
94	Binary Tree Inorder Traversal	Python	2015/02/19	Medium
93	Restore IP Addresses	Python	2015/02/19	Medium
92	Reverse Linked List II	Python	2015/02/19	Medium
91	Decode Ways	Python	2015/02/19	Medium
90	Subsets II	Python	2015/02/18	Medium
89	Gray Code	Python	2015/02/18	Medium
88	Merge Sorted Array	Python	2015/01/23	Easy
87	Scramble String			Hard
86	Partition List	Python	2015/02/17	Medium
85	Maximal Rectangle			Hard
84	Largest Rectangle in Histogram			Hard
83	Remove Duplicates from Sorted List II	Python	2015/01/23	Medium
82	Remove Duplicates from Sorted List	Python	2015/01/23	Easy
81	Search in Rotated Sorted Array II			Medium
80	Remove Duplicates from Sorted Array II	Python	2015/02/17	Medium
79	Word Search	Python	2015/02/15	Medium
78	Subsets	Python	2015/02/15	Medium
77	Combinations	Python	2015/02/15	Medium
76	Minimum Window Substring			Hard
75	Sort Colors	Python	2015/02/15	Medium
74	Search a 2D Matrix	Python	2015/02/15	Medium
73	Set Matrix Zeroes	Python	2015/02/15	Medium
72	Edit Distance			Hard
71	Simplify Path	Python	2015/02/15	Medium
70	Climbing Stairs	Python	2015/01/23	Easy
69	Sqrt(x)	Python	2015/02/15	Medium
68	Text Justification			Hard
67	Add Binary	Python	2015/01/22	Easy
66	Plus One	Python	2014/12/15	Easy
65	Valid Number			Hard
64	Minimum Path Sum	Python	2015/02/14	Medium
63	Unique Paths II	Python	2015/02/14	Medium
62	Unique Paths	Python	2015/02/14	Medium
61	Rotate List	Python	2015/02/13	Medium
60	Permutation Sequence	Python	2015/02/12	Medium
59	Spiral Matrix II	Python	2015/02/12	Medium
58	Length of Last Word	Python	2015/01/22	Easy
57	Insert Interval			Hard
56	Merge Intervals			Hard
55	Jump Game	Python	2015/02/12	Medium
54	Spiral Matrix	Python	2015/02/12	Medium
53	Maximum Subarray	Python	2015/02/11	Medium
52	N-Queens II			Hard
51	N-Queens			Hard
50	"Pow(x, n)"	Python	2015/02/11	Medium
49	Anagrams			Medium
48	Rotate Image	Python	2015/02/10	Medium
47	Permutations II			Hard
46	Permutations	Python	2015/02/10	Medium
45	Jump Game II	Python	2016/09/06	Hard
44	Wildcard Matching			Hard
43	Multiply Strings	Python	2015/02/10	Medium
42	Trapping Rain Water	Python	2016/09/06	Hard
41	First Missing Positive	Python	2016/09/05	Hard
40	Combination Sum II	Python	2015/02/06	Medium
39	Combination Sum	Python Java	2015/02/06	Medium
38	Count and Say	Python Java	2014/10/27	Easy
37	Sudoku Solver	Python Java	2016/09/05	Hard
36	Valid Sudoku	Python	2015/01/22	Easy
35	Search Insert Position	Python Java	2015/02/06	Medium
34	Find First and Last Position of Element in Sorted Array	Python Java	2015/02/05	Medium
33	Search in Rotated Sorted Array	Python Java	2016/09/01	Hard
32	Longest Valid Parentheses	Python	2016/09/01	Hard
31	Next Permutation	Python Java	2014/02/05	Medium
30	Substring with Concatenation of All Words			Hard
29	Divide Two Integers	Python Java	2015/02/04	Medium
28	Implement strStr()	Python Java	2015/01/22	Easy
27	Remove Element	Python Java	2015/01/22	Easy
26	Remove Duplicates from Sorted Array	Python Java	2015/01/22	Easy
25	Reverse Nodes in k-Group	Java	2016/08/23	Hard
24	Swap Nodes in Pairs	Python Java	2015/02/04	Medium
23	Merge k Sorted Lists	Python	2015/10/05 Java	Hard
22	Generate Parentheses	Python Java	2015/02/04	Medium
21	Merge Two Sorted Lists	Python Java	2015/01/06	Easy
20	Valid Parentheses	Python	2015/01/06 Java	Easy
19	Remove Nth Node From End of List	Python Java	2015/01/06	Easy
18	4Sum	Python Java Java2	2015/02/03	Medium
17	Letter Combinations of a Phone Number	Python Java	2015/02/03	Medium
16	3Sum Closest	Python Java	2015/02/02	Medium
15	3Sum	Python Java	2015/01/29	Medium
14	Longest Common Prefix	Python Java	2014/11/10	Easy
13	Roman to Integer	Python Java	2014/11/6	Easy
12	Integer to Roman	Python Java	2014/11/7	Medium
11	Container With Most Water	Python Java	2015/01/27	Medium
10	Regular Expression Matching	Python Java	2015/10/15	Hard
9	Palindrome Number	Python Java	2014/11/4	Easy
8	String to Integer (atoi)	Python Java	2014/11/3	Easy
7	Reverse Integer	Python Java	2014/11/01	Easy
6	ZigZag Conversion	Python Java	2015/01/06	Easy
5	Longest Palindromic Substring	Python Java	2015/01/27	Medium
4	Median of Two Sorted Arrays	Python Java	2015/09/15	Hard
3	Longest Substring Without Repeating Characters	Python Java	2015/01/26	Medium
2	Add Two Numbers	Python Java	2015/01/26	Medium
1	Two Sum	Python Java	2015/01/25	Medium