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LeetCode in C / Python

LeetCode algorithm problems

This is mainly to find some common questions to help me pratice C / Python

The ✪ requires LeetCode Premium Subscription

# Problems Solution [C] Solution [Python]
1 Two Sum C Py
2 Add Two Numbers
3 Longest Substring Without Repeating Characters
4 Median of Two Sorted Arrays
5 Longest Palindromic Substring
6 ZigZag Conversion
7 Reverse Integer
8 String to Integer (atoi)
9 Palindrome Number
10 Regular Expression Matching
11 Container With Most Water
12 Integer to Roman
13 Roman to Integer
14 Longest Common Prefix
15 3Sum
16 3Sum Closest
17 Letter Combinations of a Phone Number
18 4Sum
19 Remove Nth Node From End of List
20 Valid Parentheses
21 Merge Two Sorted Lists
22 Generate Parentheses
23 Merge k Sorted Lists
24 Swap Nodes in Pairs
25 Reverse Nodes in k-Group
26 Remove Duplicates from Sorted Array
27 Remove Element
28 Implement strStr()
29 Divide Two Integers
30 Substring with Concatenation of All Words
31 Next Permutation
32 Longest Valid Parentheses
33 Search in Rotated Sorted Array
34 Search for a Range
35 Search Insert Position
36 Valid Sudoku
37 Sudoku Solver
38 Count and Say
39 Combination Sum
40 Combination Sum II
41 First Missing Positive
42 Trapping Rain Water
43 Multiply Strings
44 Wildcard Matching
45 Jump Game II
46 Permutations
47 Permutations II
48 Rotate Image
49 Anagrams
50 Pow(x, n)
51 N-Queens
52 N-Queens II
53 Maximum Subarray
54 Spiral Matrix
55 Jump Game
56 Merge Intervals
57 Insert Interval
58 Length of Last Word
59 Spiral Matrix II
60 Permutation Sequence
61 Rotate List
62 Unique Paths
63 Unique Paths II
64 Minimum Path Sum
65 Valid Number
66 Plus One
67 Add Binary
68 Text Justification
69 Sqrt(x)
70 Climbing Stairs
71 Simplify Path
72 Edit Distance
73 Set Matrix Zeroes
74 Search a 2D Matrix
75 Sort Colors
76 Minimum Window Substring
77 Combinations
78 Subsets
79 Word Search
80 Remove Duplicates from Sorted Array II
81 Search in Rotated Sorted Array II
82 Remove Duplicates from Sorted List II
83 Remove Duplicates from Sorted List
84 Largest Rectangle in Histogram
85 Maximal Rectangle
86 Partition List
87 Scramble String
88 Merge Sorted Array
89 Gray Code
90 Subsets II
91 Decode Ways
92 Reverse Linked List II
93 Restore IP Addresses
94 Binary Tree Inorder Traversal
95 Unique Binary Search Trees II
96 Unique Binary Search Trees
97 Interleaving String
98 Validate Binary Search Tree
99 Recover Binary Search Tree
100 Same Tree
101 Symmetric Tree
102 Binary Tree Level Order Traversal
103 Binary Tree Zigzag Level Order Traversal
104 Maximum Depth of Binary Tree
105 Construct Binary Tree from Preorder and Inorder Traversal
106 Construct Binary Tree from Inorder and Postorder Traversal
107 Binary Tree Level Order Traversal II
108 Convert Sorted Array to Binary Search Tree
109 Convert Sorted List to Binary Search Tree
110 Balanced Binary Tree
111 Minimum Depth of Binary Tree
112 Path Sum
113 Path Sum II
114 Flatten Binary Tree to Linked List
115 Distinct Subsequences
116 Populating Next Right Pointers in Each Node
117 Populating Next Right Pointers in Each Node II
118 Pascal's Triangle
119 Pascal's Triangle II
120 Triangle
121 Best Time to Buy and Sell Stock
122 Best Time to Buy and Sell Stock II
123 Best Time to Buy and Sell Stock III
124 Binary Tree Maximum Path Sum
125 Valid Palindrome
126 Word Ladder II
127 Word Ladder
128 Longest Consecutive Sequence
129 Sum Root to Leaf Numbers
130 Surrounded Regions
131 Palindrome Partitioning
132 Palindrome Partitioning II
133 Clone Graph
134 Gas Station
135 Candy
136 Single Number
137 Single Number II
138 Copy List with Random Pointer
139 Word Break
140 Word Break II
141 Linked List Cycle
142 Linked List Cycle II
143 Reorder List
144 Binary Tree Preorder Traversal
145 Binary Tree Postorder Traversal
146 LRU Cache
147 Insertion Sort List
148 Sort List
149 Max Points on a Line
150 Evaluate Reverse Polish Notation
151 Reverse Words in a String
152 Maximum Product Subarray
153 Find Minimum in Rotated Sorted Array
154 Find Minimum in Rotated Sorted Array II
155 Min Stack
156 Binary Tree Upside Down ✪
157 Read N Characters Given Read4 ✪
158 Read N Characters Given Read4 II - Call multiple times ✪
159 Longest Substring with At Most Two Distinct Characters ✪
160 Intersection of Two Linked Lists
161 One Edit Distance ✪
162 Find Peak Element
163 Missing Ranges ✪
164 Maximum Gap
165 Compare Version Numbers
166 Fraction to Recurring Decimal
167 Two Sum II - Input array is sorted ✪
168 Excel Sheet Column Title
169 Majority Element
170 Two Sum III - Data structure design ✪
171 Excel Sheet Column Number
172 Factorial Trailing Zeroes
173 Binary Search Tree Iterator
174 Dungeon Game
179 Largest Number
186 Reverse Words in a String II ✪
187 Repeated DNA Sequences
188 Best Time to Buy and Sell Stock IV
189 Rotate Array
190 Reverse Bits
191 Number of 1 Bits
198 House Robber
199 Binary Tree Right Side View
200 Number of Islands
201 Bitwise AND of Numbers Range
202 Happy Number
203 Remove Linked List Elements
204 Count Primes
205 Isomorphic Strings
206 Reverse Linked List
207 Course Schedule
208 Implement Trie (Prefix Tree)
209 Minimum Size Subarray Sum
210 Course Schedule II
211 Add and Search Word - Data structure design
212 Word Search II
213 House Robber II
214 Shortest Palindrome
215 Kth Largest Element in an Array
216 Combination Sum III
217 Contains Duplicate
218 The Skyline Problem
219 Contains Duplicate II
220 Contains Duplicate III
221 Maximal Square
222 Count Complete Tree Nodes
223 Rectangle Area
224 Basic Calculator
225 Implement Stack using Queues
226 Invert Binary Tree
227 Basic Calculator II
228 Summary Ranges
229 Majority Element II
230 Kth Smallest Element in a BST
231 Power of Two
232 Implement Queue using Stacks
233 Number of Digit One
234 Palindrome Linked List
235 Lowest Common Ancestor of a Binary Search Tree
236 Lowest Common Ancestor of a Binary Tree
237 Delete Node in a Linked List
238 Product of Array Except Self
239 Sliding Window Maximum
240 Search a 2D Matrix II
241 Different Ways to Add Parentheses
242 Valid Anagram
243 Shortest Word Distance ✪
244 Shortest Word Distance II ✪
245 Shortest Word Distance III ✪
246 Strobogrammatic Number ✪
247 Strobogrammatic Number II ✪
248 Strobogrammatic Number III ✪
249 Group Shifted Strings ✪
250 Count Univalue Subtrees ✪
251 Flatten 2D Vector ✪
252 Meeting Rooms ✪
253 Meeting Rooms II ✪
254 Factor Combinations ✪
255 Verify Preorder Sequence in Binary Search Tree ✪
256 Paint House ✪
257 Binary Tree Paths
258 Add Digits
259 3Sum Smaller ✪
260 Single Number III
261 Graph Valid Tree ✪
263 Ugly Number
264 Ugly Number II
265 Paint House II ✪
266 Palindrome Permutation ✪
267 Palindrome Permutation II ✪
268 Missing Number

###LeetCode Shell(Bash)

# Title Difficulty Solution
1 Word Frequency Medium
2 Valid Phone Numbers Easy
3 Transpose File Medium
4 Tenth Line Easy Bash

Reference

1 - haoel
2 - kamyu104
3 - algorhythms

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