Problem Organization

Each problem solution contains:

• Solution file in JavaScript/TypeScript (num.name.js/num.name.ts)
• Comments Detailed explanation with:
  • Problem statement
  • Approach explanation
  • Solution code
  • Test cases

Progress Tracking

Difficulty	Completed	Total	Progress
Easy	10	100	█
Medium	0	100
Hard	0	100

Last Updated: 2025-8-9

How to Use

1. Navigate to desired difficulty level
2. Find problem by group number or problem ID
3. Each solution folder contains:
   • Implementation file
4. Use as reference or learning resource

Contribution Guidelines

1. Follow existing folder structure
2. For new solutions:
   • Create folder with problem ID and name
   • Add solution file
   • Include detailed README.md
3. Keep solutions consistent in style

Happy coding! 🚀

LeetCode Roadmap 2025

Step 1: Build your foundations

• Arrays and Strings

• Hash Maps and Sets

• Two Pointers

• Sliding Window

Step 2: Learn algorithmic patterns

• Binary Search
• Depth-First and Breadth-First Search
• Recursion and Backtracking
• Dynamic Programming (Top-down and Bottom-up)
• Greedy algorithms

Step 3: Go company-specific

• Focus on high-frequency problems tagged by company

• Solve them by category (e.g., all Google dynamic programming questions)

• Repeat difficult ones until the logic is intuitive

Step 4: Simulate real interviews

• LeetCode Contest Archives

• Mock interviews

• Platforms like Pramp or Interviewing.io

Step 5: Reflect, refine, and repeat

• What did I miss in my first approach?

• How can I optimize my solution?

• Can I explain this problem to someone else?

Step 6: Tackle timed challenges and contests

• Time management practice

• Real-world feedback on your speed and accuracy

• Competitive ranking to benchmark progress

Step 7: Master advanced topics

• Tries and Segment Trees

• Union-Find

• Topological Sorting

• Bit Manipulation

• Advanced Dynamic Programming (memoization tables, state reduction)

Step 8: Create a review cycle

• Reattempt tough problems after 3 days, 1 week, and 2 weeks

• Record new insights from each attempt

• Maintain a “fail list” as part of your dashboard

Good tips

• Study from top solutions and editorials
• Build your own problem list
• Don’t neglect behavioral prep
• Join a community for accountability
• Balance LeetCode with project work