All LeetCode Problems in Python with Tests

Every problem shipped in this repository: 1404 problems (309 Easy, 819 Medium, 276 Hard). Generate every problem directory into the current directory:

lcpy gen --all

Browse by difficulty: Easy, Medium, Hard.

#	Problem	Difficulty	Solution
1	Two Sum	Easy	solution.py
2	Add Two Numbers	Medium	solution.py
3	Longest Substring Without Repeating Characters	Medium	solution.py
4	Median of Two Sorted Arrays	Hard	solution.py
5	Longest Palindromic Substring	Medium	solution.py
6	Zigzag Conversion	Medium	solution.py
7	Reverse Integer	Medium	solution.py
8	String to Integer (atoi)	Medium	solution.py
9	Palindrome Number	Easy	solution.py
10	Regular Expression Matching	Hard	solution.py
11	Container With Most Water	Medium	solution.py
12	Integer to Roman	Medium	solution.py
13	Roman to Integer	Easy	solution.py
14	Longest Common Prefix	Easy	solution.py
15	3Sum	Medium	solution.py
16	3Sum Closest	Medium	solution.py
17	Letter Combinations of a Phone Number	Medium	solution.py
18	4Sum	Medium	solution.py
19	Remove Nth Node From End of List	Medium	solution.py
20	Valid Parentheses	Easy	solution.py
21	Merge Two Sorted Lists	Easy	solution.py
22	Generate Parentheses	Medium	solution.py
23	Merge k Sorted Lists	Hard	solution.py
24	Swap Nodes in Pairs	Medium	solution.py
25	Reverse Nodes in k-Group	Hard	solution.py
26	Remove Duplicates From Sorted Array	Easy	solution.py
27	Remove Element	Easy	solution.py
28	Find the Index of the First Occurrence in a String	Easy	solution.py
29	Divide Two Integers	Medium	solution.py
30	Substring with Concatenation of All Words	Hard	solution.py
31	Next Permutation	Medium	solution.py
32	Longest Valid Parentheses	Hard	solution.py
33	Search in Rotated Sorted Array	Medium	solution.py
34	Find First and Last Position of Element in Sorted Array	Medium	solution.py
35	Search Insert Position	Easy	solution.py
36	Valid Sudoku	Medium	solution.py
37	Sudoku Solver	Hard	solution.py
38	Count and Say	Medium	solution.py
39	Combination Sum	Medium	solution.py
40	Combination Sum II	Medium	solution.py
41	First Missing Positive	Hard	solution.py
42	Trapping Rain Water	Hard	solution.py
43	Multiply Strings	Medium	solution.py
44	Wildcard Matching	Hard	solution.py
45	Jump Game II	Medium	solution.py
46	Permutations	Medium	solution.py
47	Permutations II	Medium	solution.py
48	Rotate Image	Medium	solution.py
49	Group Anagrams	Medium	solution.py
50	Pow(x, n)	Medium	solution.py
51	N-Queens	Hard	solution.py
52	N-Queens II	Hard	solution.py
53	Maximum Subarray	Medium	solution.py
54	Spiral Matrix	Medium	solution.py
55	Jump Game	Medium	solution.py
56	Merge Intervals	Medium	solution.py
57	Insert Interval	Medium	solution.py
58	Length of Last Word	Easy	solution.py
59	Spiral Matrix II	Medium	solution.py
60	Permutation Sequence	Hard	solution.py
61	Rotate List	Medium	solution.py
62	Unique Paths	Medium	solution.py
63	Unique Paths II	Medium	solution.py
64	Minimum Path Sum	Medium	solution.py
65	Valid Number	Hard	solution.py
66	Plus One	Easy	solution.py
67	Add Binary	Easy	solution.py
68	Text Justification	Hard	solution.py
69	Sqrt(x)	Easy	solution.py
70	Climbing Stairs	Easy	solution.py
71	Simplify Path	Medium	solution.py
72	Edit Distance	Hard	solution.py
73	Set Matrix Zeroes	Medium	solution.py
74	Search a 2D Matrix	Medium	solution.py
75	Sort Colors	Medium	solution.py
76	Minimum Window Substring	Hard	solution.py
77	Combinations	Medium	solution.py
78	Subsets	Medium	solution.py
79	Word Search	Medium	solution.py
80	Remove Duplicates from Sorted Array II	Medium	solution.py
81	Search in Rotated Sorted Array II	Medium	solution.py
82	Remove Duplicates from Sorted List II	Medium	solution.py
83	Remove Duplicates from Sorted List	Easy	solution.py
84	Largest Rectangle in Histogram	Hard	solution.py
85	Maximal Rectangle	Hard	solution.py
86	Partition List	Medium	solution.py
87	Scramble String	Hard	solution.py
88	Merge Sorted Array	Easy	solution.py
89	Gray Code	Medium	solution.py
90	Subsets II	Medium	solution.py
91	Decode Ways	Medium	solution.py
92	Reverse Linked List II	Medium	solution.py
93	Restore IP Addresses	Medium	solution.py
94	Binary Tree Inorder Traversal	Easy	solution.py
95	Unique Binary Search Trees II	Medium	solution.py
96	Unique Binary Search Trees	Medium	solution.py
97	Interleaving String	Medium	solution.py
98	Validate Binary Search Tree	Medium	solution.py
99	Recover Binary Search Tree	Medium	solution.py
100	Same Tree	Easy	solution.py
101	Symmetric Tree	Easy	solution.py
102	Binary Tree Level Order Traversal	Medium	solution.py
103	Binary Tree Zigzag Level Order Traversal	Medium	solution.py
104	Maximum Depth of Binary Tree	Easy	solution.py
105	Construct Binary Tree from Preorder and Inorder Traversal	Medium	solution.py
106	Construct Binary Tree from Inorder and Postorder Traversal	Medium	solution.py
107	Binary Tree Level Order Traversal II	Medium	solution.py
108	Convert Sorted Array to Binary Search Tree	Easy	solution.py
109	Convert Sorted List to Binary Search Tree	Medium	solution.py
110	Balanced Binary Tree	Easy	solution.py
111	Minimum Depth of Binary Tree	Easy	solution.py
112	Path Sum	Easy	solution.py
113	Path Sum II	Medium	solution.py
114	Flatten Binary Tree to Linked List	Medium	solution.py
115	Distinct Subsequences	Hard	solution.py
116	Populating Next Right Pointers In Each Node	Medium	solution.py
117	Populating Next Right Pointers in Each Node II	Medium	solution.py
118	Pascal’s Triangle	Easy	solution.py
119	Pascal’s Triangle II	Easy	solution.py
120	Triangle	Medium	solution.py
121	Best Time to Buy and Sell Stock	Easy	solution.py
122	Best Time to Buy and Sell Stock II	Medium	solution.py
123	Best Time to Buy and Sell Stock III	Hard	solution.py
124	Binary Tree Maximum Path Sum	Hard	solution.py
125	Valid Palindrome	Easy	solution.py
126	Word Ladder II	Hard	solution.py
127	Word Ladder	Hard	solution.py
128	Longest Consecutive Sequence	Medium	solution.py
129	Sum Root to Leaf Numbers	Medium	solution.py
130	Surrounded Regions	Medium	solution.py
131	Palindrome Partitioning	Medium	solution.py
132	Palindrome Partitioning II	Hard	solution.py
133	Clone Graph	Medium	solution.py
134	Gas Station	Medium	solution.py
135	Candy	Hard	solution.py
136	Single Number	Easy	solution.py
137	Single Number II	Medium	solution.py
138	Copy List with Random Pointer	Medium	solution.py
139	Word Break	Medium	solution.py
140	Word Break II	Hard	solution.py
141	Linked List Cycle	Easy	solution.py
142	Linked List Cycle II	Medium	solution.py
143	Reorder List	Medium	solution.py
144	Binary Tree Preorder Traversal	Easy	solution.py
145	Binary Tree Postorder Traversal	Easy	solution.py
146	LRU Cache	Medium	solution.py
147	Insertion Sort List	Medium	solution.py
148	Sort List	Medium	solution.py
149	Max Points on a Line	Hard	solution.py
150	Evaluate Reverse Polish Notation	Medium	solution.py
151	Reverse Words in a String	Medium	solution.py
152	Maximum Product Subarray	Medium	solution.py
153	Find Minimum in Rotated Sorted Array	Medium	solution.py
154	Find Minimum in Rotated Sorted Array II	Hard	solution.py
155	Min Stack	Medium	solution.py
156	Binary Tree Upside Down	Medium	solution.py
157	Read N Characters Given Read4	Easy	solution.py
158	Read N Characters Given read4 II - Call Multiple Times	Hard	solution.py
159	Longest Substring with At Most Two Distinct Characters	Medium	solution.py
160	Intersection of Two Linked Lists	Easy	solution.py
161	One Edit Distance	Medium	solution.py
162	Find Peak Element	Medium	solution.py
163	Missing Ranges	Easy	solution.py
164	Maximum Gap	Medium	solution.py
165	Compare Version Numbers	Medium	solution.py
166	Fraction to Recurring Decimal	Medium	solution.py
167	Two Sum II - Input Array Is Sorted	Medium	solution.py
168	Excel Sheet Column Title	Easy	solution.py
169	Majority Element	Easy	solution.py
170	Two Sum III - Data structure design	Easy	solution.py
171	Excel Sheet Column Number	Easy	solution.py
172	Factorial Trailing Zeroes	Medium	solution.py
173	Binary Search Tree Iterator	Medium	solution.py
174	Dungeon Game	Hard	solution.py
179	Largest Number	Medium	solution.py
186	Reverse Words in a String II	Medium	solution.py
187	Repeated DNA Sequences	Medium	solution.py
188	Best Time to Buy and Sell Stock IV	Hard	solution.py
189	Rotate Array	Medium	solution.py
190	Reverse Bits	Easy	solution.py
191	Number of 1 Bits	Easy	solution.py
198	House Robber	Medium	solution.py
199	Binary Tree Right Side View	Medium	solution.py
200	Number of Islands	Medium	solution.py
201	Bitwise AND of Numbers Range	Medium	solution.py
202	Happy Number	Easy	solution.py
203	Remove Linked List Elements	Easy	solution.py
204	Count Primes	Medium	solution.py
205	Isomorphic Strings	Easy	solution.py
206	Reverse Linked List	Easy	solution.py
207	Course Schedule	Medium	solution.py
208	Implement Trie (Prefix Tree)	Medium	solution.py
209	Minimum Size Subarray Sum	Medium	solution.py
210	Course Schedule II	Medium	solution.py
211	Design Add and Search Words Data Structure	Medium	solution.py
212	Word Search II	Hard	solution.py
213	House Robber II	Medium	solution.py
214	Shortest Palindrome	Hard	solution.py
215	Kth Largest Element in an Array	Medium	solution.py
216	Combination Sum III	Medium	solution.py

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All LeetCode Problems in Python with Tests