🥰Alg
时间
其他
数组
Sort
🌝Quick Sort
🌝Heap Sort
🌝Merge Sort
347. Top K Frequent Elements
215. Kth Largest Element in an Array
703. Kth Largest Element in a Stream
56. Merge Intervals
54. Spiral Matrix
384. Shuffle an Array
179. Largest Number
135. Candy
1. 2Sum
14. Longest Common Prefix
50. Pow
69. Sqrt(x)
149. Max Points on a Line
169. Majority Element
173. Binary Search Tree Iterator
704. Binary Search
81. Search in Rotated Sorted Array II
74. Search a 2D Matrix
240. Search a 2D Matrix II
53. Maximum Subarray
287. Find the Duplicate Number
8. String to Integer
String
9. Palindrome Number
125. Valid Palindrome
409. Longest Palindrome
Linked List
206. Reverse Linked List
24. Swap Nodes in Pairs
876. Middle of the Linked List
141. Linked List Cycle
142. Linked List Cycle II
160. Intersection of Two Linked Lists
237. Delete Node in a Linked List
203. Remove Linked List Elements
83. Remove Duplicates from Sorted List
82. Remove Duplicates from Sorted List II
86. Partition List
234. Palindrome Linked List
143. Reorder List
147. Insertion Sort List
328. Odd Even Linked List
148. Sort List
21. Merge Two Sorted Lists
23. Merge k Sorted Lists
146. LRU Cache
817. Linked List Components
707. Design Linked List
19. Remove Nth Node From End of List
Tree
144. Binary Tree Preorder Traversal
94. Binary Tree Inorder Traversal
145. Binary Tree Postorder Traversal
102. Binary Tree Level Order Traversal
103. Binary Tree Zigzag Level Order Traversal
637. Average of Levels in Binary Tree
297. Serialize and Deserialize Binary Tree
404. Sum of Left Leaves
114. Flatten Binary Tree to Linked List
897. Increasing Order Search Tree
108. Convert Sorted Array to Binary Search Tree
654. Maximum Binary Tree
105. Construct Binary Tree from Preorder and Inorder Traversal
106. Construct Binary Tree from Inorder and Postorder Traversal
100. Same Tree
572. Subtree of Another Tree
508. Most Frequent Subtree Sum
101. Symmetric Tree
226. Invert Binary Tree
617. Merge Two Binary Trees
872. Leaf-Similar Trees
104. Maximum Depth of Binary Tree
111. Minimum Depth of Binary Tree
110. Balanced Binary Tree
222. Count Complete Tree Nodes
257. Binary Tree Paths
129. Sum Root to Leaf Numbers
112. Path Sum
113. Path Sum II
437. Path Sum III
124. Binary Tree Maximum Path Sum
700. Search in a Binary Search Tree
701. Insert into a Binary Search Tree
450. Delete Node in a BST
98. Validate Binary Search Tree
235. Lowest Common Ancestor of a Binary Search Tree
236. Lowest Common Ancestor of a Binary Tree
669. Trim a Binary Search Tree
230. Kth Smallest Element in a BST
199. Binary Tree Right Side View
Partition
75. Sort Colors
28. Implement strStr
11. Container With Most Water
42. Trapping Rain Water
15. 3Sum
18. 4Sum
454. 4Sum II
344. Reverse String
27. Remove Element
26. Remove Duplicates from Sorted Array
80. Remove Duplicates from Sorted Array II
905. Sort Array By Parity
7. Reverse Integer
2. Add Two Numbers
415. Add Strings
189. Rotate Array
349. Intersection of Two Arrays
350. Intersection of Two Arrays II
209. Minimum Size Subarray Sum
Stack
155. Min Stack
232. Implement Queue using Stacks
225. Implement Stack using Queues
150. Evaluate Reverse Polish Notation
239. Sliding Window Maximum
32. Longest Valid Parentheses
227. Basic Calculator II
DFS & BFS
279. Perfect Squares
17. Letter Combinations of a Phone Number
46. Permutations
78. Subsets
77. Combinations
39. Combination Sum
216. Combination Sum III
47. Permutations II
90. Subsets II
40. Combination Sum II
200. Number of Islands
79. Word Search
36. Valid Sudoku
37. Sudoku Solver
Bit manipulation
190. Reverse Bits
191. Number of 1 Bits
461. Hamming Distance
136. Single Number
137. Single Number II
260. Single Number III
231. Power of Two
371. Sum of Two Integers
HashTable
387. First Unique Character in a String
705. Design HashSet
3. Longest Substring Without Repeating Characters
532. K-diff Pairs in an Array
笔试
Crypto
egcd
Baby-Step Griant-Step Algorithm
DP
64. Minimum Path Sum
174. Dungeon Game
70. Climbing Stairs
Longest Common Sequence
221. Maximal Square
343. Integer Break
120. Triangle
204. Count Primes
62. Unique Paths
63. Unique Paths II
198. House Robber
Greedy
300. Longest Increasing Subsequence
435. Non-overlapping Intervals
JDK
Arrays.java
String.java
Integer.java
Other data structures
BTree
AVLTree
🔴🌚🌳RedBlackTree
SegmentTree
UnionFind
Trie
HashTable
Published with GitBook
Crypto
math: arithmetic operation
programming requirement: bit manipulation
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