Math & Geometry

48 Rotate Image

54 Spiral Matrix

73 Set Matrix Zeroes

202 Happy Number

66 Plus One

50 Pow(x,n)

43 Multiply Strings

2013 Detect Squares

LeetCode Problems:

53. Maximum Subarray
54. Jump Game
55. Jump Game II
56. Gas Station
57. Hand of Straights
58. Merge Triplets to Form Target Triplet
59. Partition Labels
60. Valid Parenthesis String

Backtracking

78 Subsets

39 Combination Sum

46 Permutations

90 Subsets II

40 Combination Sum II

79 Word Search

131 Palindrome Partitioning

17 Letter Combinations of a Phone Number

51 N Queens

Complete NeetCode:Trees list of LeetCode Problems

226. Invert Binary Tree
227. Maximum Depth of Binary Tree
228. Diameter of Binary Tree
229. Balanced Binary Tree
230. Same Tree
231. Subtree of Another Tree
232. Lowest Common Ancestor of a Binary Search Tree
233. Binary Tree Level Order Traversal
234. Binary Tree Right Side View
235. Count Good Nodes in Binary Tree
236. Validate Binary Search Tree
237. Kth Smallest Element in a BST
238. Construct Binary Tree from Preorder and Inorder Traversal
239. Binary Tree Maximum Path Sum
240. Serialzie and Deserialize Binary Tree

Tries

208 Implement Trie Prefix Tree

211 Design Add and Search Words Data Structure

212 Word Search II

Bit Manipulation

136 Single Number

191 Number of 1 Bits

338 Counting Bits

190 Reverse Bits

268 Missing Number

371 Sum of Two Integers

7 Reverse Integer

Intervals

57 Insert Interval

56 Merge Intervals

435 Non Overlapping Intervals

252 Meeting Rooms

253 Meeting Rooms II

1851 Minimum Interval to Include Each Query

Heap / Priority Queue

703 Kth Largest Element in a Stream

1046 Last Stone Weight

973 K Closest Points to Origin

215 Kth Largest Element in an Array

621 Task Scheduler

355 Design Twitter

295 Find Median from Data Stream