AjibsBaba/best-leetcode-resources

This repository contains Leetcode resources to help ace your coding interviews and learn Leetcode Patterns.

Best Leetcode Resources

This repository contains the best free LeetCode resources for interview prep.

Fundamental Concepts

• Hash Tables
• Linked List
• Recursion
• Sorting
• Binary Search
• Stacks
• Queues
• Trees
• Tries
• Backtracking
• Heaps
• Breadth First Search
• Depth First Search
• Graph Theory
• Dynaymic Programming
• Big O Cheat Sheet

Leetcode Spaced-Repetition Template

Patterns

• 14 Coding Interview Patterns
• Sliding Window
• Two Pointers
• Merge Intervals
• Cyclic Sort
• Monotonic Stack
• Two Heaps
• Subsets
• Modified Binary Search
• Top K Elements
• K-way merge
• DFS Pattern
• BFS Pattern
• Topological Sort

Famous Problem Sets

• Blind 75
• Neetcode 150
• Sean Prashad's Leetcode Patterns
• Leetcode Top Interview Questions

Books

• Elements of Programming Interviews
• Competitive Programmer's Handbook
• Cracking the Coding Interview

Courses

• Grokking the Coding Interview
• Data Structures with a Google SWE
• Meta Coding Interview Prep Course

Mock Interviewing

• Pramp
• Interviewing.io
• Meetapro

Resume Template

Must-do Problems

Graphs

• Redundant Connection
• Course Schedule
• Course Schedule II
• Number of connected components in an undirected graph
• Shortest Path to Get All Keys
• Pacific Atlantic Waterflow
• Word Ladder
• Number of Islands
• Clone Graph
• Alien Dictionary

Binary Trees

• Construct binary tree from preorder and inorder traversal
• Diameter of Binary Tree
• Invert Binary Tree
• Count good nodes in Binary Tree
• Serialize and Deserialize Binary Tree
• Kth smallest element in BST
• Lowest Common Ancestor of a BST
• Path Sum
• Path Sum II
• Merge two Binary Trees
• Word Search
• Word Search II
• Maximum Width of Binary Tree

Your open-source contributions are appreciated!