Only DSA Resources You Need to Crack Any Interview

There are hundreds of courses, lists, and platforms for DSA. Most candidates don't need most of them. If you're aiming for Google, Amazon, Meta, or similar, you can get interview-ready with a small set of resources and consistent practice. This post names exactly what that set is — and how to combine it with company-specific prep and mock interviews.

1. One curated problem list

Pick one list and finish it. NeetCode 150, Blind 75, or the Striver SDE sheet are all valid. NeetCode 150 gives pattern-based order and videos; Blind 75 is the minimal core; Striver is topic-wise. Don't hop between lists — complete one so you build pattern recognition. For which topics matter most, use our DSA interview questions guide. One list is enough for the vast majority of coding rounds at Google, Amazon, and Uber.

2. One platform to practice on

Use LeetCode or NeetCode (or both if you use NeetCode for learning and LeetCode for execution). You don't need AlgoExpert, Educative, and five other sites. One primary platform keeps your progress in one place and reduces context-switching. See LeetCode alternatives if you want to compare, but the takeaway is: pick one, stick with it. Company-tagged problems on LeetCode can help in the last few weeks; pair with our company question guides to know what each company tends to ask.

3. One approach framework

Use the same process for every problem: clarify → brute force → optimize → code → test. No need for a dozen frameworks. Learn it once and apply it every time — in practice and in mocks. We spelled it out in how to approach a new DSA problem. Practicing this in AI mock interviews makes it automatic when pressure is on.

4. Company-specific prep

DSA alone isn't enough. You need to know what each company asks and how their process works: number of rounds, behavioral, system design (for mid/senior). Use our interview questions and process guides for Meta, Netflix, Airbnb, and 15+ others. Add mock interviews (peer, Interviewing.io, or AI) in the 2–4 weeks before your loop. That combination — one list, one platform, one approach, plus company prep and mocks — is the only DSA-related resource stack you need.

A Simple 8–12 Week Plan Using Only These Resources

Weeks 1–4: Pick one list (NeetCode 150, Blind 75, or Striver) and do 1–2 problems daily. Use the same approach every time: clarify, brute force, optimize, code, test. Weeks 5–6: Continue the list and start reading company interview questions and process guides for your target companies — e.g. Google, Amazon, Meta, Uber. Weeks 7–8 (or 9–12 if using NeetCode 150 / Striver): Finish the list, do a few company-tagged problems if helpful, and add 2–3 mock interviews. For system design (mid/senior), add system design prep in parallel. This plan uses only the four resources above; no extra courses or platforms required. For topic depth, see our DSA interview questions and FAANG interview prep.

When It Makes Sense to Add More

If you finish your list with 4+ weeks to go and want more practice, add company-tagged problems on LeetCode or a second pass on weak patterns — don't start a whole new list. If you're targeting a company known for harder DSA (e.g. some Google or Apple loops), a few extra problems from the same platform is enough. If you prefer learning from a book, coding interview books can reinforce the same patterns; they're optional, not mandatory. The principle stays the same: one list + one platform + one approach + company prep + mocks. Adding more should be targeted (e.g. "I'm weak in graphs") not generic ("I'll do another 150 problems").

What you don't need

You don't need every course, every list, or every platform. You don't need to do 500 problems. You need ~75–150 problems done well, with a clear approach and some company-specific awareness. Skip the "best 10 resources" lists that leave you with 10 half-finished things. Pick one list, one platform, one approach, add company prep and mocks — then execute. For a deeper topic breakdown, use DSA interview questions and coding interview books if you like reading; they complement, they don't replace, the core four. We deliberately skip recommending five different platforms, three paid courses, and multiple lists — that creates decision fatigue and shallow practice. LeetCode alternatives are useful if you're considering switching platforms, but one primary platform is still the rule.

Bottom line

Only DSA resources you need: one problem list (NeetCode 150, Blind 75, or Striver), one platform (LeetCode or NeetCode), one approach (clarify, brute force, optimize, code, test), and company prep + mocks. When you're ready to test yourself, run an AI mock interview tailored to your target company.