Everything You Need to Crack Top Tech Offers
Every section is tailored to solve specific interview pain points—from recency-ranked company questions to universal logic-building frameworks. Click any module below to dive straight into that page.
Company-Wise Frequency & Recency Explorer
Practice questions tailored to your exact target interview. Filter by Last 30 Days, 3 Months, 6 Months, or All-Time. Sort by real candidate frequency % and acceptance rate to maximize return on preparation time.
Must-Solve 33 Pattern Roadmap
Short on prep time? Master 33 hand-picked LeetCode problems covering 8 foundational interview patterns in 20–25 hours.
DSA Logic Building Playbook
Eliminate blank-screen anxiety forever. Learn the 7-Step Universal Blueprint, interactive Algorithm Dry-Run Visualizer, Pattern Finder Wizard, and Big-O Complexity Budget Radar.
DSA Topic-Wise Master Sheet
Systematic problem-solving tracking for Arrays, Strings, Trees, Graphs, Dynamic Programming, and Heaps. Mark problems solved, tag revision flags, and take private notes.
Battle-Tested Interview Study Sprints
Select the study sprint that fits your remaining preparation runway to ensure peak retention and minimum burnout.
Last 30-Day OA & Screening
For sudden online assessments or interview invites coming up this week.
- ✓ Filter target company:
thirty-days.csv - ✓ High & Medium priority problems only
- ✓ 8 Core pattern recognition refresh
- ✓ Pre-submit edge case validation
Target Company Deep Dive
For candidates with 3–4 weeks to prepare for Amazon, Google, Meta, or Microsoft.
- ✓ Target company:
three-months.csv&six-months.csv - ✓ Solve top 60–80 high-frequency questions
- ✓ Complete Must-Solve 33 core roadmap
- ✓ Review company roadmap topics & weights
Full Tech Giant Conversion
Comprehensive algorithmic foundation for campus placement seasons and senior engineering roles.
- ✓ Complete DSA Logic Building Playbook
- ✓ Full DSA Topic Master Sheet coverage
- ✓ Solve 150+ problems across 10 top firms
- ✓ Cloud progress sync & weekly mock tests
The Scientific 4-Step Preparation Flow
How top engineers practice with surgical precision instead of solving random problems.
Select Target Firm
Pick your dream company and select the recency window matching your timeline (30 Days to All-Time).
Inspect Signatures
Review the data-driven company roadmap to see which topics and patterns that company heavily favors.
Apply 7-Step Logic
Use the Playbook's universal blueprint to extract constraints, trace test cases, and write bug-free code.
Track & Revisit
Mark problems done, sync across your laptop and phone, and flag high-yield problems for pre-interview revision.
Prem Kumar
"Most engineers get stuck in coding interviews not because they lack programming skills, but because they don't have a structured mental model to diagnose problem patterns under pressure. DSA Doctor was built to replace blind grinding with transparent, data-driven interview intelligence."