Your Guided Path to
DSA Mastery
A structured, data-driven roadmap designed to take you from beginner to interview-ready in 6–10 weeks.
Foundations
Before touching patterns
Build the necessary groundwork before diving into complex patterns.
| Pattern / Topic | Focus |
|---|---|
| Arrays Basics | Memory layout, indexing |
| Hashing Basics | Collisions, Map/Set usage |
| Complexity Analysis | Big O notation (Time/Space) |
| Two Pointers Concept | Left/Right pointer logic |
Beginner Patterns
Core Logic Formation
The foundation of 70% of DSA problems.
| Pattern / Topic | Focus |
|---|---|
| Arrays & Hashing | Foundation of interview problems |
| Two Pointers | Optimized linear solutions |
| Sliding Window | Subarray/Substring optimization |
| Stack | LIFO data processing |
| Linked List | Fundamental pointer manipulation |
| Binary Search | Logarithmic search in sorted data |
Intermediate Patterns
Problem Solving Muscle
Moving into non-linear data structures and recursion.
| Pattern / Topic | Focus |
|---|---|
| Trees & Trie | Recursion & hierarchical data |
| Heap Priority Queue | Scheduling & ordering |
| Heap, Merge, & Stacks | Advanced data combinations |
| Backtracking | Decision tree exploration |
| Graphs | Traversing connections |
Advanced Patterns
Real Interview Material
Complex algorithms often required for top-tier tech roles.
| Pattern / Topic | Focus |
|---|---|
| Advanced Graphs | Topo sort, Union Find, Shortest Path |
| 1-D DP | Linear optimizations (House Robber, LIS) |
| 2-D DP | Grid & String comparison (LCS, Edit Distance) |
| Bit Manipulation | Binary level optimizations |
| Math & Geometry | Number theory and spatial logic |
| Greedy & Design | Local optimal choices & LRU/LFU |
| Advanced Data Structures | Segment Trees & Skip Lists |
Interview Phase
Simulation & Review
Curated Lists
- Blind 75 / Grind 75
- NeetCode 150
- Company Tags (Google, Meta)
Mock Interviews
- Time-boxed solving (45m)
- Explain out loud
- Pramp / System Design
Final Revision
- Re-solve incorrect Qs
- Pattern recognition drills
- Spaced repetition
Pattern Checklist
Mark your mastery. Data syncs locally.
How to Use
- 01
Follow the pattern order. Don't jump to Graphs before Arrays.
- 02
Focus on understanding why a pattern works, not memorizing code.
- 03
Always write the Brute Force solution first, then optimize.
- 04
If stuck for 45m, look at the solution, understand it, and re-code it.
Common Pitfalls
Solving random LeetCode problems without a plan.
Copy-pasting solutions to get the green checkmark.
Skipping complexity analysis (Time/Space).
Neglecting Easy problems (they build the intuition for Hards).
Ready to Start?
Your roadmap is set. The best time to start was yesterday. The second best time is now.