NeetCode 150 and Grind 75 are the two most common modern interview lists. NeetCode 150 is a fixed list of 150 problems in 18 pattern categories with a video for each; Grind 75 is generated by a tool from a ranked pool of 169 questions to fit your weeks and hours. They overlap less than you might expect. This page compares their order, topic mix, overlap and time, and says which to pick for four, eight or twelve weeks. Guides: our NeetCode 150 roadmap and Grind 75 guide.
The two lists side by side
Counts were read from each list's own site data in November 2026. Lists are edited from time to time, so numbers can drift. Overlap figures are our own counts, matched by LeetCode problem.
| NeetCode 150 | Grind 75 (default) | |
|---|---|---|
| Problems | 150 | 75, from a pool of 169 |
| Easy / Medium / Hard | 28 / 101 / 21 | 24 / 42 / 9 |
| Order | By pattern category, fixed | By priority, then by difficulty within your weeks |
| Grouping | 18 categories | Weeks, topics or difficulty, your choice |
| Explanations | A video for every problem | Links to LeetCode; no videos of its own |
| Premium problems | None required | None at default settings |
How much they overlap
- 58 problems are in both lists at Grind's default settings, so 17 of Grind's 75 are not in NeetCode 150.
- Those 17 include Flood Fill, 01 Matrix, Implement Queue using Stacks, Ransom Note, Majority Element, Add Binary, Accounts Merge, Sort Colors, String to Integer (atoi), Basic Calculator, Maximum Profit in Job Scheduling and Minimum Height Trees.
- Across Grind's full pool of 169, 106 of NeetCode's 150 problems appear, so a long Grind plan converges with NeetCode.
- NeetCode 150 contains every Blind 75 problem; Grind 75 shares 40 with Blind 75, as covered in Blind 75 vs Grind 75.
Topic mix
NeetCode 150 gives more room to the topics that decide hard rounds: 23 dynamic programming problems, 19 graph and advanced graph problems and 10 backtracking problems. Grind 75 at default settings has 11 array, 10 graph, 9 binary tree and 8 string questions but only 5 tagged dynamic programming, and its Grind-only problems include Basic Calculator, Accounts Merge and Maximum Profit in Job Scheduling. Grind also keeps every hard problem for the final week, while NeetCode spreads its 21 hard problems across categories.
How long each takes
| NeetCode 150 | Grind 75 | |
|---|---|---|
| Planned time | No official estimate | 64 hours at default settings (8 weeks at 8 hours) |
| Our estimate with review | 120 to 160 hours with some practice | Close to the tool's budget, which already doubles solve times |
| Flexibility | Fixed; you choose the pace | Resizes to fit up to 26 weeks and up to 40 hours a week |
For the detail behind the NeetCode estimate, see how long NeetCode 150 takes.
Which to pick for your timeline
- Four weeks: Grind 75 with your real hours. At 16 hours a week the tool still gives the full 75; at 8 hours it gives 41 and drops the hard problems.
- Eight weeks: either. Grind 75 at default settings if you want a ranked, ready-made schedule; NeetCode 150 at 15 to 20 hours a week if you learn best from videos.
- Twelve weeks: NeetCode 150 first, then the 17 Grind problems it lacks, or Grind with longer settings, which pulls in more of the pool.
- Unsure which three lists to compare? See NeetCode 150 vs Blind 75 vs LeetCode 75.
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 interview copilot; 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 problems do NeetCode 150 and Grind 75 share?
58 at Grind's default settings, by our count of both lists' data in November 2026.
Which is harder, NeetCode 150 or Grind 75?
NeetCode 150 is longer and has a higher share of medium problems, and it has 21 hard problems against Grind's 9 at default settings. Grind 75 has more easy problems, about a third of the list.
Can I do Grind 75 after NeetCode 150?
Yes, but most of it will be repeats. Only 17 of Grind's default 75 are not in NeetCode 150.
Which list is better for a one-month deadline?
Grind 75, because it ranks problems by priority and fits the list to your available hours.
Practice this interview before the real one
The AI mock interview builds questions from your resume and the job description, reads them aloud and scores each spoken answer out of 10. Included on the free plan.
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