HomeCoursesGrokking the Coding Interview Patterns
4.8

Intermediate

85h

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Grokking the Coding Interview Patterns

Grokking the Coding Interview is the best course that saves countless hours wasted in grinding LeetCode. Master 28 coding patterns; unlock all LeetCode problems. Developed by and for MAANG engineers.

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With thousands of potential questions to account for, preparing for the coding interview can feel like an impossible challenge. Yet with a strategic approach, coding interview prep doesn’t have to take more than a few weeks. Stop drilling endless sets of practice problems, and prepare more efficiently by learning coding interview patterns. This course teaches you the underlying patterns behind common coding interview questions. By learning these essential patterns, you will be able to unpack and answer any problem the right way — just by assessing the problem statement. This approach was created by FAANG hiring managers to help you prepare for the typical rounds of interviews at major tech companies like Apple, Google, Meta, Microsoft, and Amazon. Before long, you will have the skills you need to unlock even the most challenging questions, grok the coding interview, and level up your career with confidence. This course is also available in JavaScript, Python, Go, and C++ — with more coming soon!
With thousands of potential questions to account for, preparing for the coding interview can feel like an impossible challenge. ...Show More

WHAT YOU'LL LEARN

Understand the essential patterns behind common coding interview questions — without having to drill endless problem sets
Identify the underlying pattern of each interview question by assessing the problem statement (and learn the tricks required to solve it)
Practice your skills in a hands-on, setup-free coding environment
Learn to efficiently evaluate the tradeoffs between time and space complexity in different solutions
Develop a flexible conceptual framework for solving any question, by connecting problem characteristics, solution techniques, and coding design patterns
Understand the essential patterns behind common coding interview questions — without having to drill endless problem sets

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TAKEAWAY SKILLS

Java

Programming Language

Prepare for Interview

Coding Interview Patterns

Data Structures

Python

Learning Roadmap

3.

Sliding Window

Break down the sliding window technique to solve computational problems with optimized efficiency.

4.

Intervals

Solve problems in merging intervals, inserting and finding intersections of intervals, scheduler tasks, and determining employee free time.

5.

In-Place Manipulation of a Linked List

Tackle in-place linked list manipulations for efficient and memory-optimized operations.

6.

Two Heaps

Master the steps to optimize dynamic data processing and decision-making using heaps.

7.

K-way Merge

Learn how to use k-way merge for efficient data merging and finding k-th small elements.

8.

Top K Elements

Walk through the top k elements pattern and learn efficient selection using heaps.

9.

Modified Binary Search

Break apart modified binary search adaptations and solutions for diverse search problems.

10.

Subsets

Grasp the fundamentals of generating subsets, permutations, and combinations.

11.

Greedy Techniques

Dig into optimization problems with greedy algorithms through practical scenarios and solutions.

12.

Backtracking

Explore backtracking algorithm for solving complex problems like N-Queens, word search, binary tree paths, and Sudoku.

13.

Dynamic Programming

Build on dynamic programming concepts to efficiently solve complex optimization problems.

14.

Cyclic Sort

Step through cyclic sort concepts to efficiently handle various missing and corrupt number scenarios.

15.

Topological Sort

Unpack the core of topological sort, focusing on ordering dependencies and resolving compilation sequences efficiently.

16.

Sort and Search

Solve problems by organizing data through sorting and applying binary search, two-pointer, and sliding window for efficient solutions.

17.

Matrices

Go hands-on with matrix operations, transformations, and efficient traversal techniques in coding.

18.

Stacks

Apply your skills to use stacks for various tasks, including calculators, string manipulation, and queuing.

19.

Graphs

Deepen your knowledge of graph theory, algorithms, practical solutions, and real-world applications.

20.

Tree Depth-First Search

Follow the process of exploring tree structures and implementing various binary tree problems.

21.

Tree Breadth-First Search

Piece together the parts of the Tree BFS traversal, focusing on various traversal methods.

22.

Trie

Step through efficient trie implementations to optimize search suggestions, word replacements, and common prefix finding.

23.

Hash Maps

Discover the logic behind implementing efficient hash maps and their applications in problem-solving.

24.

Knowing What to Track

Master the steps to efficiently track data, solve permutations, anagrams, and game design problems.

25.

Union Find

Enhance your skills in Union-Find to address diverse graph and connectivity problems.

26.

Custom Data Structures

Dig into creating and implementing custom data structures for solving specialized problems efficiently.

27.

Bitwise Manipulation

Explore bitwise operations for problem-solving and algorithm optimization.

28.

Math and Geometry

Explore math and geometry for problem-solving.

29.

Challenge Yourself

Test your understanding of various coding challenges focusing on algorithm efficiency.

Course Author:

Developed by MAANG Engineers
Every Educative lesson is designed by a team of ex-MAANG software engineers and PhD computer science educators, and developed in consultation with developers and data scientists working at Meta, Google, and more. Our mission is to get you hands-on with the necessary skills to stay ahead in a constantly changing industry. No video, no fluff. Just interactive, project-based learning with personalized feedback that adapts to your goals and experience.

Trusted by 2.9 million developers working at companies

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See how Educative uses AI to make your learning more immersive than ever before.

AI Prompt

Build prompt engineering skills. Practice implementing AI-informed solutions.

Code Feedback

Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.

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Select any text within any Educative course, and get an instant explanation — without ever leaving your browser.

AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!

Frequently Asked Questions

Is Java good for coding interviews?

Yes, Java is excellent for coding interviews. It’s a popular and widely used programming language in the industry and effectively supports core data structures and algorithms. Java’s strong typing and object-oriented features help write clear, maintainable code, making it a solid choice for technical interviews.

How to crack Java coding interviews?

To crack Java coding interviews, thoroughly understand the basics, including OOP principles (inheritance, encapsulation), Java data structures (arrays, lists, maps), exception handling, and multithreading. Practice coding problems on platforms like Educative, LeetCode, and HackerRank to apply these concepts effectively.

How can I prepare for a Java interview fast?

Practice coding by solving coding exercises and practice problems on platforms like Educative, LeetCode, and HackerRank to improve your problem-solving skills for the Java coding interview. Conduct mock interviews with friends, colleagues, or online platforms like Educative to simulate the real Java technical interview experience.

What are the coding patterns?

Coding patterns are common strategies or techniques for solving recurring coding problems asked in coding interviews. They include approaches like two pointer techniques, sliding windows, backtracking, greedy algorithms, and dynamic programming, which help efficiently tackle various algorithmic challenges.

Which coding platform is best for interviews?

LeetCode offers diverse problems for interview prep, and HackerRank is great for learning Python basics. However, Educative stands out by combining interactive lessons to learn Python deeply and coding challenges to practice, all in one platform, making it the ideal choice for comprehensive interview preparation.