Curated problem sets for every preparation timeline — from 1-week sprints to 6-month mastery journeys.
Essential problems for cracking coding interviews
Most asked problems at top tech companies
Frequently asked problems across interviews
Intensive 30-day preparation plan
Quick revision for last-minute prep
Comprehensive 60-day roadmap
Complete 90-day mastery program
Ultimate comprehensive DSA journey
Don't jump between sheets. Complete one fully before moving to another.
Consistency beats intensity. Solve 2-3 problems daily rather than 20 in a day.
Focus on understanding patterns, not memorizing solutions.
Keep the momentum going with the rest of the CodeStudio practice stack.
DSA 101 Practice Sheet
The 300-problem starter sheet covering every core pattern.
Tech Career Roadmaps
Stage-by-stage plans for DSA, full stack, backend and data roles.
Company-Wise Problems
Interview process, rounds and must-solve sets per company.
Company LeetCode Sheets
650+ companies, sorted by how often each question shows up.