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• Blind 75 Walkthrough Week 1 Part 1

• How to Write Clean Code

• ChatGPT Prompt Guide for Solving LeetCode-style Coding Problems

• How to use ChatGPT to study LeetCode

• We heard you - better discussion forum!

• added quick nav links to Speedrun

• Monotonic Stack
• OOP design: Design parking lot
• Union Find application: Region Cut by Slashes

• added roadmap.
• minor fixes

• Updated Union Find explanations and added visualization.
• Added slides to two pointer intro articles: Fixed Sliding Window, Flexible Sliding Window - Longest and Flexible Sliding Window - Shortest.
• Two pointers Speedrun
• Happy New Year! Wish you all the best in 2023! 🎁 🎆

• content updates
• and Merry Christmas and happy holidays! 🎅 🎁

• dark mode text color fix and content fixes

• Check out Graph Speedrun 1 and Graph Speedrun part 2!

• Dark mode 🌔

Check out Backtracking Speedrun⚡💨!

Content updates addressing user feedback.

Check out ⚡Speedrun💨!

Test cases for tree problems now shows the tree visualization.

• Updated binary search section
  • added binary search and monotonic function
  • added more specific template and updated all problems to use the same template

Still have trouble understanding the concept after reading an article? You can now request clarification using the link at the end of each article.

Huge update

• a complete rewrite of the backtracking section with a better step-by-step flow
  • backtracking 1 basics
  • backtracking 1 pruning
  • backtracking 1 additional states
  • backtracking 2, aggregation
• UI
  • now you can hide the sidebar
• fixes/improvements

minor fixes

minor fixes

• added lowest common ancestor on BST as a pre-cursor to lowest common ancestor
• minor fixes

• rewrote dp articles
  • Triangle
  • Longest Increasing Subsequence (LIS)
• fixed incorrect expected output for custom input for some problems
• added C# solution to the getting started, backtracking and bfs sections

• Update DP section
  • Updated Coin change and added Coin Change 2
  • Updated explanation for Longest Common Subsequence
• Added C# solutions to DFS section
• Minor fixes

• added slides explanation the path's operations in DFS with state
• added knapsack DP section
• added interval DP
• added math basics
• updated queue intro
• minor fixes

• minor fixes

• Minor fixes

• introduction to tree data structure
• interval dp update with coin game
• minor fixes

• Add Math intro, infinity discussion
• kth largest in matrix fix
• minor fixes

• add figure to ugly number
• fix content errors