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TopDown CS

Not a textbook. Not a course. Just the answers any interviewer would want to hear.

Essentials

OOP Essential
DBMS Essential
OS Essentials
CN Essential

Additionals

OOP Additional
DBMS Additional
OS Additional
CN Additional

Practice & Problems

OS Problems
Design Patterns
CN Problems
Code Tracing
DB Design

Coming Soon

System Design
Soon

DSA Roadmap

Arrays & Hashing12Math Basics5Strings5Two Pointers9Stacks & Queues10Bit Manipulation6Sliding Window8Binary Search11Linked Lists13Greedy8Trees & BST20Intervals6Tries3Heaps & Priority Queues7Backtracking10Graphs161D Dynamic Programming122D Dynamic Programming8