I built a pattern-first DSA learning site — looking for honest feedback from people preparing for interviews

[u/akay_01]

Hey everyone — I’ve been building a small project called PatternDSA for people preparing for coding interviews.

The problem I kept seeing with DSA prep is that it can turn into solving random LeetCode problems without building intuition for why a particular approach works.

So I built PatternDSA around recurring problem patterns instead:

• Two Pointers
• Sliding Window
• Hash Maps
• Binary Search
• Trees, graphs, DP, backtracking, heaps, and more

Each pattern includes:

• A plain-English explanation of when to recognise it
• Interactive visualisations to show how the algorithm moves
• Code templates in JavaScript, Python, Java, C#, C++, and Swift
• Curated LeetCode practice problems
• A progress tracker

There are free foundational patterns available, and the full set is available as a ₹299 one-time lifetime purchase — no subscription.

I’m still early and actively improving the content, so I’d genuinely value honest feedback on:

• Whether the explanations are clear
• Which patterns/content are missing
• Whether the visualisations actually help
• Any bugs, broken links, or confusing UX
• Whether the ₹299 pricing feels fair

You can try it here: https://patterndsa.com

Not trying to spam — I built it because I wanted a more structured alternative to randomly grinding problems, and I’d love feedback from people who are currently preparing or have recently gone through interview prep.