Master Your Coding Interviews

Complete preparation guide for FAANG and top tech company interviews. Learn proven strategies, study plans, and insider tips from successful candidates.

12 Week
Study Plan
50+
Patterns
100%
Success Rate
Start Practicing Now

12-Week Comprehensive Study Plan

Foundation (Weeks 1-2)

Core Data Structures & Algorithms

Key Topics:

  • Arrays and Strings
  • Linked Lists
  • Stacks and Queues
  • Hash Tables
  • Basic Recursion
2 weeks20-30 easy problems

Intermediate (Weeks 3-6)

Advanced Data Structures & Patterns

Key Topics:

  • Trees and Binary Search Trees
  • Graphs and Graph Traversal
  • Dynamic Programming
  • Greedy Algorithms
  • Two Pointers & Sliding Window
4 weeks40-50 medium problems

Advanced (Weeks 7-10)

Complex Problems & System Design

Key Topics:

  • Advanced Dynamic Programming
  • Backtracking
  • System Design Fundamentals
  • Database Design
  • Scalability Concepts
4 weeks20-30 hard problems + 10 system design

Final Prep (Weeks 11-12)

Mock Interviews & Company-Specific Prep

Key Topics:

  • Company-specific question patterns
  • Mock interviews
  • Behavioral interview prep
  • Final review of weak areas
  • Interview day preparation
2 weeks5-10 mock interviews

Essential Coding Patterns

Two Pointers

Use two pointers moving towards each other or in the same direction

Use Case: Array problems, palindromes, pair finding
Example: Two Sum, Container With Most Water
Easy to Medium

Sliding Window

Maintain a window of elements and slide it across the array

Use Case: Substring problems, array subarrays
Example: Longest Substring Without Repeating Characters
Medium

Fast & Slow Pointers

Two pointers moving at different speeds

Use Case: Cycle detection, middle element finding
Example: Linked List Cycle, Happy Number
Easy to Medium

Dynamic Programming

Break problems into subproblems and store results

Use Case: Optimization problems, counting problems
Example: Fibonacci, Coin Change, Knapsack
Medium to Hard

Tree Traversal

DFS and BFS traversal techniques

Use Case: Tree and graph problems
Example: Binary Tree Inorder Traversal, Level Order
Easy to Hard

Backtracking

Explore all possibilities by trying and undoing choices

Use Case: Permutations, combinations, constraint satisfaction
Example: N-Queens, Sudoku Solver
Medium to Hard

Interview Success Tips

Before the Interview

  • Research the company and role thoroughly
  • Practice coding on a whiteboard or shared document
  • Prepare questions to ask the interviewer
  • Review your resume and be ready to discuss projects
  • Get a good night's sleep and eat well

During the Interview

  • Think out loud and explain your approach
  • Ask clarifying questions before coding
  • Start with a brute force solution, then optimize
  • Test your code with examples
  • Stay calm and communicate clearly

Problem-Solving Process

  • Understand the problem and constraints
  • Think of similar problems you've solved
  • Consider multiple approaches and trade-offs
  • Implement the solution step by step
  • Optimize and handle edge cases

System Design Fundamentals

Essential system design concepts for senior engineering roles at FAANG companies.

Scalability

High

Horizontal vs vertical scaling, load balancing

Examples:
Load balancersAuto-scaling groupsCDNs

Databases

High

SQL vs NoSQL, database design, indexing

Examples:
MySQLMongoDBRedisCassandra

Caching

High

Cache strategies, cache levels, cache invalidation

Examples:
RedisMemcachedBrowser cacheCDN cache

Message Queues

Medium

Asynchronous processing, decoupling systems

Examples:
RabbitMQApache KafkaAmazon SQS

Microservices

Medium

Service-oriented architecture, API design

Examples:
REST APIsGraphQLService mesh

Security

Medium

Authentication, authorization, data protection

Examples:
OAuthJWTHTTPSSQL injection prevention

Ready to Start Your Journey?

Access our complete question bank with detailed solutions, company-specific guides, and personalized study plans to maximize your interview success.

📚

Practice Questions

500+ real interview questions with solutions

🏢

Company Guides

Specific preparation for FAANG companies

🔢

DSA Topics

Organized by data structures and algorithms

Start Your Preparation