/LeetCodePython

A repository of some LeetCode solutions done in Python

Primary LanguagePythonThe UnlicenseUnlicense

LeetCode

A repository of some LeetCode solutions done in Python

Languages

  • Python

Algorithm

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

Database

# Title Premium Solutions Difficulty Done
175 Combine Two Tables Easy
176 Second Highest Salary Easy
177 Nth Highest Salary Medium
178 Rank Scores Medium
180 Consecutive Numbers Medium
181 Employees Earning More Than Their Managers Easy
182 Duplicate Emails Easy
183 Customers Who Never Order Easy
184 Department Highest Salary Medium
185 Department Top Three Salaries Hard
196 Delete Duplicate Emails Easy
197 Rising Temperature Easy

Shell

# Title Premium Solutions Difficulty Done
192 Word Frequency Medium
193 Valid Phone Numbers Easy
194 Transpose File Medium
195 Tenth Line Easy