Data Structures & Algorithms

Pattern-first problem solving in Java: learn about 35 patterns instead of 500 solutions, with the reasoning interviewers want to hear.

• DSA Without Fear: The mindset, method and tools that make DSA learnable: why it feels hard, how to practise, Big-O in plain words, and recursion without the fear.
• Data Structures Basics: What each data structure is, how it sits in memory, its types, what every operation costs and which Java class to use, with step-through visuals. Read the one you need before its patterns.
• Problem-Solving Patterns: About 35 patterns cover the large majority of interview problems. Each lesson shows how to spot the pattern, why it works, one reusable template and a practice ladder.
• Interview Playbook: Pick the pattern under pressure, follow a study plan, and communicate like a strong candidate.