NeetCode Roadmap

What it is

A visual graph where each node is a topic, the arrows show prerequisites, and clicking a node gives you the problems that teach it. It is the recommended order for working through NeetCode 150, and your progress is tracked as you go.

The 18 topics are:

• Arrays and hashing, two pointers, stack
• Binary search, sliding window, linked list
• Trees, tries, heap and priority queue, backtracking
• Graphs, advanced graphs
• 1-D dynamic programming, 2-D dynamic programming
• Greedy, intervals, math and geometry, bit manipulation

Each problem links to a video explanation, and you can solve it in NeetCode's editor or on LeetCode.

Why the dependency view helps

Topic order in coding interviews is not arbitrary. Trees come before graphs, graphs before advanced graphs, recursion and backtracking before dynamic programming. Attempting them out of order produces the experience of finding a topic impossibly hard when the real problem is a missing prerequisite two nodes back. Seeing the graph makes that easy to diagnose.

How long it takes

NeetCode 150 through the roadmap is a common two to four month plan at one to two hours a day for someone who knows basic data structures. Faster if you have done some LeetCode; slower if trees and recursion are new to you.

How to use it well

• Start at the top and do not skip ahead, even when a later topic is the one your interview is likely to cover.
• Finish a node before moving on, but do not aim for perfection: if you can solve most problems in a node without the video, move on and come back later.
• Attempt each problem before the video, for 20 to 25 minutes.
• Revisit earlier nodes every week or two. Spaced repetition is what makes patterns stick.
• Keep a short notes file per topic with the key idea from each problem.

Where it falls short

It is a list and an order, not a teacher. If a topic is completely new (for example you have never implemented a tree), you will need a proper explanation first, from NeetCode's beginner course, a data structures course or a book. The roadmap also covers coding only; system design and behavioural preparation are separate.

Pair it with

Pair it with the NeetCode videos themselves, a complexity reference such as the Big-O Cheat Sheet, and regular mock interviews (Pramp or friends) once you reach trees.

Best for: self-directed preparation on no budget, and anyone who does not know what to study next.