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Master the Coding Interview: Data Structures + Algorithms

4.6(40,658) on Udemy·262K enrolled
Beginner 19.5 hours English Course Certificate
SkillsData structuresAlgorithmsInterview preparationProblem solvingBig-O analysisCoding challenges

Is this course right for you?

Our take
A practical, motivating way to prepare for coding interviews, covering the data structures and algorithms that come up plus the interview process itself. With over 260,000 students it is one of the most-taken interview-prep courses on Udemy.

Good for: developers preparing for technical coding interviews.

Skip if: you are new to programming, or you want deep algorithm theory.

Andrei Neagoie splits it into the technical side — Big O, arrays, hash tables, trees, recursion, sorting and dynamic programming, with code in 13 languages — and the non-technical side: resumes, portfolios, and, unusually, how to handle offers and negotiate a raise afterward. That second half is a genuine differentiator.

What it does not do is teach programming from scratch or go deep into algorithm theory — it is interview prep — so pair it with hands-on practice on a site like LeetCode, and if you are new to programming, start with a first course instead. On price, wait for a Udemy sale.

Comparison · LBS

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About this course

This course splits cleanly into technical and non-technical halves: the technical side covers Big O notation, arrays, hash tables, linked lists, stacks/queues, trees (BST, AVL, heaps, tries), recursion, sorting, searching, and dynamic programming, with code provided in 13 languages; the non-technical side covers resumes, LinkedIn, portfolios, and — distinctively — how to handle offers and negotiate a raise once you have one.

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Instructor

AN
Andrei Neagoie
Udemy instructor

Andrei Neagoie has taught some of Udemy's highest-rated programming courses, with graduates working at Google, Tesla, Amazon, Apple, IBM, JP Morgan, and Meta; he now runs ZTM Academy.

Frequently asked questions

Yes, some. This teaches data structures, algorithms, and how to reason about them under interview pressure — not how to program from scratch. You should already be able to write basic code in some language: variables, loops, functions, and simple problem-solving. If you are a complete beginner to coding, learn a language first, then come here to prepare for interviews rather than to learn to code.

It is taught primarily in JavaScript, but the concepts are language-agnostic and community members maintain solutions in Python and others. Andrei Neagoie focuses on understanding how each data structure and algorithm works rather than on language-specific tricks, so you can follow along in your own language. What matters for interviews is the reasoning, and that transfers regardless of the syntax on screen.

They serve different purposes and work best together. This course builds the underlying understanding — Big O analysis, how and why each structure and algorithm works, and how to approach a problem you have not seen — which raw LeetCode grinding does not teach on its own. LeetCode then gives you the volume of practice to get fast. Do the course to learn how to think, then drill LeetCode to build speed.

Big O notation for analysing efficiency, the core data structures (arrays, linked lists, stacks, queues, hash tables, trees, graphs), and key algorithm patterns including recursion, sorting, searching, and dynamic programming. Beyond the technical material, it also covers the non-coding side of interviews — resumes, portfolios, and how to actually get and handle the interview — which rounds it out as genuine interview preparation.

It is available on Udemy, usually at a low price during frequent sales, and also through the Zero To Mastery subscription. For turning shaky algorithm knowledge into genuine interview readiness, it is one of the more recommended courses, backed by Andrei Neagoie's strong teaching reputation. The value is in doing the problems yourself and then practising more widely — the course builds the foundation, consistent practice lands the offer.
Paid
Paid, frequently discounted · 30-day money-back guarantee
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