Prepare for coding interviews with this collection of 30 important DSA questions. This is a DevScribe collection, so you can read, run, and practice every question in one place.

What you'll get:

30 popular DSA interview questions
Easy-to-understand explanations
Java solutions
Step-by-step dry runs
Time and Space Complexity
Multiple test cases
Markdown documentation (.md)
Java code (.java)
JSON test cases (.json)
A ready-to-use DevScribe collection for interactive practice

Practice with DevScribe:

Read the explanation
Run the Java code
Try different test cases
Edit the solution and experiment
Practice all questions in one workspace

Topics included:

Arrays
Strings
Two Pointers
Sliding Window
Binary Search
Linked Lists
Stack & Queue
Trees
Graphs
Dynamic Programming
Recursion
DFS & BFS

Perfect for:

Students
Beginners
Software Engineers
Java Developers
Anyone preparing for coding interviews

Instead of only reading solutions, you can practice every question directly in DevScribe, making it easier to learn, experiment, and improve your problem-solving skills. You'll also receive free lifetime updates as new content is added.

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30 Essential DSA Interview Questions & Solutions

Mock interview