NeetCode 150

The NeetCode 150 is a curated list of 150 LeetCode problems organized by the NeetCode Roadmap. It expands on the original Blind 75 by adding deeper coverage across 18 topics, including categories like greedy algorithms, advanced graphs, and 2D dynamic programming that the Blind 75 barely touches.

This list is for candidates who have 2-3 months to prepare and want comprehensive pattern coverage. While the Blind 75 gives you one or two examples per pattern, the NeetCode 150 gives you enough repetition within each topic to build real fluency. By the time you finish the graph section, for example, you will have solved 19 graph problems covering BFS, DFS, topological sort, union-find, Dijkstra, and more.

The problems are sequenced within each category from easier to harder. The roadmap also suggests an order between categories: start with arrays, then two pointers, then sliding window, and build up to graphs and dynamic programming. This progression ensures you have the prerequisites for each new topic.

1. Follow the roadmap order. The categories are sequenced intentionally. Arrays before two pointers before sliding window. Trees before tries. Graphs before advanced graphs. Each section builds on patterns from previous ones.

2. Do not skip Easy problems. The Easy problems in each category establish the foundational pattern. Skipping them and jumping to Medium problems is why many people get stuck. The Easy problems are quick wins that build confidence and pattern vocabulary.

3. Review the NeetCode video explanations. Each problem has a video walkthrough on NeetCode that explains the intuition, not just the code. Understanding why a solution works is more valuable than memorizing the implementation.

4. Start mock interviews early. After completing 50-60 problems, start practicing under interview conditions. An AI-powered mock interview gives you real-time feedback on your problem-solving approach, communication, and code quality — the things that matter beyond just getting the right answer.

Blind 75 is the original curated list. 75 problems organized by topic. It covers all essential patterns but has only 1-2 problems per sub-topic. Best for tight timelines under 6 weeks.

Grind 75 is the Blind 75 successor with better ordering and time estimates. Same 75-problem scope, but optimized for time-boxed preparation. Best for people who know exactly how many hours per week they can commit.

NeetCode 150 (this page) is the comprehensive option. 150 problems across 18 categories, with enough depth in each to build real pattern fluency. Includes everything important from Blind 75 plus categories it misses entirely (greedy, advanced graphs, 2D DP). Best if you have 2-3 months.

Not sure which to pick? Check which problems your target company actually asks on our company interview questions page, then use the list that covers those patterns best.