Getting Started

Welcome to the Getting Started guide for the LeetCode Wiki! This page will help you understand how to navigate and make the most of this resource. Whether you’re a beginner or an experienced problem-solver, this guide will set you on the right path.

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Why Use This Wiki?

LeetCode can be overwhelming with its vast library of problems. This wiki simplifies your journey by:

• Categorizing problems based on topics, difficulty, and popularity.
• Providing clear, concise explanations of algorithms and solutions.
• Offering curated lists to help you focus on what matters most for interviews.

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Prerequisites

Before diving in, make sure you have the following:

1. LeetCode Account
   • Create a free account on LeetCode to access problems and track your progress.
2. Programming Knowledge
   • Familiarity with at least one programming language like Python, Java, C++, or JavaScript.
3. Basic Understanding of Algorithms and Data Structures
   • Concepts like arrays, linked lists, recursion, sorting, and searching are a great starting point.

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How to Use This Wiki

1. Explore Topics

Visit the topics/ directory to find problem explanations grouped by categories such as arrays, dynamic programming, graphs, and more. Each topic includes:

• An overview of the concept.
• Example problems with detailed explanations and solutions.

2. LeetCode Lists

Use the curated lists below to structure your problem-solving journey:

• Top 150 Questions: Essential for interview preparation.
• LeetCode 75: A guided study plan for beginners.
• Top 100 Liked Problems: Community favorites with valuable patterns.
• SQL 50: A must for data-oriented roles.
• Advanced SQL 50: Premium SQL challenges for advanced learners.

3. Learn from Examples

Each problem includes:

• Problem statement and constraints.
• Step-by-step explanation of the approach.
• Code solutions in multiple languages.
• Time and space complexity analysis.

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Recommended Workflow

1. Pick a List or Topic

   • Start with beginner-friendly lists like LeetCode 75 or a topic you’re currently learning.

2. Understand the Problem

   • Read the problem carefully and try solving it on your own.

3. Refer to the Wiki

   • Use this wiki to understand alternative approaches, optimize your solution, or clarify doubts.

4. Practice Consistently

   • Solve at least 1–2 problems daily to build momentum.

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Contribute to the Wiki

This project is open to collaboration! If you’d like to contribute:

1. Fork the repository.
2. Add or improve explanations in Markdown format.
3. Submit a pull request for review.

Your contributions can help others on their problem-solving journey!

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Happy coding! 🚀