Shradha Khapra & Aman Dhattarwal
Curated by Sharaadha di and Aman Bhaiya, this sheet includes 375 classical DSA questions, along with bonus problems to further enhance your skills. Covering all major DSA topics, it’s designed to prepare you for interviews at top companies like Amazon, Google, and Microsoft. By solving 5 questions daily, you can master DSA in 2.5 months.
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0/403
Overall progress
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Easy
0/116
Medium
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Hard
There is no PDF here, and you do not need one. All 403 problems are listed in full on this page, free and without an account — and unlike a PDF the list remembers what you have ticked off, so you are not re-reading a static file to work out where you stopped. Use your browser's print view if you want it on paper.
Tick a problem on this page and it stays ticked. Progress saves in your browser straight away with no account, and the counts update per section so you can see which parts of DSA by Shradha Didi & Aman Bhaiya you have actually covered. Signing in with Google syncs it across devices.
403, grouped into 17 topics. Every one is listed on this page and tickable as you solve it.
At roughly 25 minutes a problem — reading it, solving it and writing the approach down — 403 problems is about 168 hours, or 17 weeks at ten hours a week. Treat that as a planning figure rather than a promise; the first pass through an unfamiliar topic is always slower.
Yes, completely, and no account is needed. There is no paid tier and nothing is held back — the sheet itself is by Shradha Khapra & Aman Dhattarwal, and this is a free tracker for it.
Finish one. Sheets overlap heavily, so working several in parallel mostly means re-solving the same problems while never completing a full topic sweep. If you are not sure this is the right one for the time you have, the sheet comparison page puts the options side by side with hour estimates.