Tech-Interview

System Design

Scalable Web Architecture and Distributed Systems

Leetcode

Data Structure

146. LRU Chace
208. Implement Trie (Prefix Tree)
588. Design In-memory File System
706. Design HashMap

BinarySearch

240. Search a 2D Matrix II

Stack

42. Trapping Rain Water

DFS && Backtracking

22. Generate Parentheses

Graph

79. Word Search
200. Number of Islands
289. Game of Life
694. Number of Distinct Island

Dynamic Programming

198. House Robber
213. House Robber II
337. House Robber III

K Problem

23. Merge K Sorted Lists
230. Kth Smallest Element in a BST
692. Top K Frequent Words

LinkedList

138. Copy List with Random Pointer

Math

String

5. Longest Palindromic Substring
819. Most Common Word

Tree

116. Populating next right pointers in each node
222. Count Complete Tree Nodes
545. Boundary of Binary Tree
572. Subtree of Another Tree