Is the Prepflix DSA sheet free?
Yes. All 250 questions, the company-wise previous year questions and progress tracking are free with a Google login. AI hints, live classes, 1:1 mentorship and mock interviews come with the paid Career Accelerator program.
Which companies' previous year coding questions are included?
18 companies: Google, Amazon, Microsoft, Meta, Apple and Netflix; Indian product companies Flipkart, Swiggy, Zomato, Razorpay, CRED and Meesho; and Uber, Airbnb, LinkedIn, Twitter/X, Adobe and Salesforce.
How many Amazon, Google and Microsoft questions are there?
Amazon has the largest set with 99 questions, followed by Microsoft with 68 and Google with 62. Every company question is also part of the 250-question topic sheet, so solving it once counts in both places.
Which DSA topics does the sheet cover?
16 topics in a recommended order: Arrays, Two Pointers, Bit Manipulation, Binary Search, Backtracking, Sorting, Hashing, Strings, Stacks, Queues, Linked Lists, Trees, Heaps, Greedy, Dynamic Programming and Graphs.
Do the questions have video solutions?
Most questions link to a YouTube video solution, and every question links straight to the problem on LeetCode or GeeksforGeeks. Progress saves to your account automatically, so you can continue on any device.
Who made this DSA sheet?
Pranjal Jain, an IIT Kanpur graduate and founder of Prepflix, who mentors software engineers in India preparing for product company interviews.
Is there system design practice as well?
Yes. The Lantern Road is Prepflix’s system design game: 29 villages covering problems like rate limiters, consistent hashing, URL shorteners, chat systems, message queues and payment systems. The first village is free, the full road is ₹999, and finishing all 29 within 30 days earns a refund plus a referral. Enrolled Career Accelerator students get every village included.
What do enrolled Career Accelerator students get in this portal?
The same DSA sheet plus a program dashboard: their batches and class recordings, progress on questions, 1:1 mentorship and mock interview records, AI hints, Ask Pranjal doubt support, the Wall of Success and full access to The Lantern Road system design game.
