Hey folks! I'm trying to boost my data structures and algorithms (DSA) skills, but my budget is tight, and I can't really spend on costly courses right now. I'd love to hear about any free resources or unofficial courses that are high-quality and cover content similar to paid options like Striver's DSA Bootcamp, Coding Ninjas, or Apna College. Ideally, I'm looking for something that offers:
- A structured roadmap from beginner to advanced levels
- Guidance on problem-solving (preferably based on platforms like LeetCode or GFG)
- Video lectures or detailed written explanations
Any help with free alternatives, collections on GitHub, or playlists on YouTube would be greatly appreciated! Thanks! 🙏
3 Answers
Just search this subreddit for DSA resources! There are plenty of recommendations floating around. The topic pops up nearly every day, so you're likely to find something that fits your needs.
You might want to check out 'A Common Sense Guide to DSA' by Jay Wengrow. After that, diving into LeetCode problems for practice could really boost your skills. Also, Abdul Bari has some great video lectures that can help supplement your learning.
Have you heard of Neetcode? It's a good resource but just to note, it isn’t free.
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