Classes
Leetcode

Subject: Information Technology

📘 80 Study Guides

---

Introduction

LeetCode is the industry-standard online platform for practicing algorithmic coding problems. It is the primary tool used by software engineers to prepare for technical interviews at top tech companies like Google, Meta, Apple, and Amazon.

Main Features to Know

• Massive Problem Library: Over 4,000 questions categorized into Easy, Medium, and Hard difficulties.
• Multi-Language Support: Write, run, and test your code directly in the browser using Python, Java, C++, JavaScript, and more.
• Instant Feedback: The platform runs your code against dozens of hidden test cases to measure your code's Runtime (speed) and Memory (space efficiency).
• The Discuss Tab: A massive community forum where developers share alternative solutions, optimal code, and real interview experiences.

What This Class Covers

To succeed on LeetCode, you need to study patterns, not memorize solutions. This class will guide you through:

1. Essential Data Structures: Arrays, Strings, Hash Maps, Linked Lists, Trees, Graphs, and Heaps.
2. Core Algorithmic Patterns: Two-Pointers, Sliding Window, Breadth-First Search (BFS), Depth-First Search (DFS), and Dynamic Programming.
3. The 45-Minute Rule: How to debug your own code, when to give up and look at solutions, and how to learn from failure.
4. Mock Interviews: Using LeetCode's timed features to simulate real-world pressure.

Your Strategy for Success

Do not solve problems randomly. Filter questions by topic, start with Easy difficulties to build confidence, and focus heavily on Medium problems, which make up 80% of actual interview questions.

---

Latest Practice Tests / Quizzes

Latest Study Guides

📄 How to Solve: Valid Palindrome – Complete Guide for FAANG Interviews

📄 How to Solve: Trapping Rain Water – Complete Guide for FAANG Interviews

📄 How to Solve: Three Sum (Complete Guide for FAANG Interviews)

Exam Survival Guides