Apna College's DSA sheet, from Shradha Khapra and Aman Dhattarwal's platform, is a day-by-day list of data structures and algorithms problems popular with students preparing for placements in India. The current sheet is much shorter than the older version still shared online. This page covers its size, its day-wise topics, how to use it and how it compares with other sheets such as the Love Babbar 450 DSA sheet.
How big the sheet is
The current sheet's page data shows 190 questions: 40 easy, 115 medium and 35 hard, though its own FAQ text says 192. Older copies on GitHub and document-sharing sites describe a 375-question version, which is not the current sheet. Counts were read from each list's own site data on November 9, 2026. Lists are edited from time to time, so numbers can drift.
The day-wise topics
The sheet is organized into 34 days. Days 1 to 5 cover arrays, days 6 and 7 strings, day 8 binary search, and days 9 and 10 recursion and backtracking, followed by linked lists, stacks and queues, binary trees, binary search trees, heaps, tries, graphs and dynamic programming. Day 33 is greedy and day 34 is miscellaneous. Each question shows a level, an average time, company tags and a solution video, and most link to LeetCode, with some to GeeksforGeeks.
How long it takes
- The sheet's FAQ suggests revision in 30 days for people who have studied the topics before.
- First-timers should plan for up to two months.
- At about 190 problems, it is shorter than Striver's A2Z sheet and similar in size to Striver's 180.
How to use it well
- Follow the day order the first time, because later topics build on earlier ones.
- Watch the solution video only after a real attempt of 25 to 30 minutes.
- Mark every problem you could not solve and redo it after three days.
- After finishing, practice mixed problems without topic labels under time limits.
For a structured alternative, see the Striver A2Z sheet guide or Striver SDE sheet vs NeetCode 150.
Who it suits
The sheet suits students who want a guided, day-by-day plan with videos before campus placements. If you are interviewing at companies known for harder rounds, add the NeetCode 150 roadmap afterward for more medium and hard practice.
Turning a list into interview skill
Any list only helps if the practice transfers to problems you have not seen. These habits make the difference:
- Time-box every attempt: about 25 minutes for a medium before you read a solution.
- Keep a log with one line per problem: the pattern, the key idea and the complexity.
- Redo failed problems after three days, a week and three weeks, without looking at your old code.
- Explain your approach out loud before and while you code, as you would to an interviewer.
- In the last two weeks, switch to unseen problems without topic labels.
The patterns most lists are built on are explained in array and string patterns and tree, graph and recursion patterns.
Where CoPilot Interview fits
Finishing a list is not the same as passing an interview: interviewers score how you explain your approach, your trade-offs and your complexity out loud. CoPilot Interview is an AI interview assistant; its free AI mock interview asks coding questions, listens to your spoken explanation and scores it out of ten with a model answer, which is the part a problem list cannot train. The free plan gives 15 minutes a day of live help in sessions of up to 15 minutes, with AI mock interviews included. Online assessments and live coding rounds usually forbid outside help, so practice now and follow your employer's rules on the day.
Disclosure: CoPilot Interview is our product, so weigh what we say about it accordingly.
Frequently asked questions
How many questions are in the Apna College DSA sheet?
The current sheet shows 190 questions in its page data (its FAQ says 192). The older 375-question version is outdated.
How long does the Apna College sheet take?
About 30 days for revision if you know the topics, and up to two months for first-timers, according to the sheet's FAQ.
Is the Apna College sheet enough for placements?
It covers the core topics for most campus placements. For harder product-company interviews, add more medium and hard problems.
Apna College sheet or Striver's sheet?
Apna College's is shorter and day-wise with videos; Striver's A2Z is longer and teaches from basics. Choose by how much time you have.
Practice this interview before the real one
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