DSA & Interview Prep Roadmap
Master the data structure and algorithm patterns that engineering interviews actually test
Your Journey at a Glance
💡 How to use this roadmap
Work through each phase in order. Click on a skill to expand it — you'll find a description and curated resources. Don't rush; understanding beats speed. Complete one phase before moving to the next.
Foundations: Arrays & Strings
Interviewers open with arrays and strings because they reveal how carefully you handle indices, hashing, and edge cases. Build speed and accuracy on the fundamentals before anything else.
Linear Structures: Lists, Stacks & Queues
Pointer manipulation and LIFO/FIFO discipline. These rounds probe implementation accuracy under pressure — off-by-one pointer bugs are the most common failure mode.
Search & Hierarchies: Binary Search, Trees & Heaps
Logarithmic thinking and recursion over hierarchies. Trees and heaps dominate mid-level rounds at product companies, and binary-search-on-answer is a favorite twist.
The Deep End: Graphs & Dynamic Programming
Traversal, topological order, and state-based optimization. These topics separate prepared candidates from exceptional ones — pace yourself, and revisit problems after a few days.
Roadmap Complete!
You now have the foundations of a production-ready Java engineer. Apply by building real projects.