Like many others preparing for software engineering interviews, I started my LeetCode journey with the hope that solving more problems would increase my chances of landing a top-tier job. Over time, I pushed myself to solve more than 500 problems across different categories.

But as I look back, I find myself wondering:

Did solving so many problems actually help in real interviews?
Was it the best use of my preparation time?
Could I have done things differently for better results?
I want to share my honest experience and key takeaways for anyone grinding LeetCode right now.

My LeetCode Journey
🔹 0-50 problems: Struggled with basic concepts, spent hours on simple problems.
🔹 50-150 problems: Started recognizing common patterns (Two Pointers, Sliding Window, etc.).
🔹 150-300 problems: Improved speed, but still struggled with hard problems.
🔹 300-500+ problems: Became comfortable with problem-solving, but realized diminishing returns.

What I Learned After 500+ Problems
✅ Pattern Recognition is Everything
After a while, I noticed that most problems follow common patterns. Instead of solving random problems, focusing on identifying and mastering these patterns (like DP, Graphs, or Greedy) was far more effective.

✅ More Problems ≠ Guaranteed Success
I met people who solved 200 problems and landed FAANG, while others did 1000+ problems but still struggled in interviews. The key difference? Understanding over memorization.

✅ Interviews Are More Than Just LeetCode
Many interviews test problem-solving approach, communication, and system design in addition to coding. Just grinding LeetCode isn't enough.

✅ Diminishing Returns After a Point
After around 300-400 problems, I noticed that solving more didn’t bring significant improvements. Instead, mock interviews, CS fundamentals, and real-world projects started becoming more important.

So, Was It Worth It?
✔ Yes, IF you solve problems to learn patterns, not just increase numbers.
✔ Yes, IF you balance LeetCode with system design, behavioral prep, and mock interviews.
❌ No, IF you're blindly solving problems without analyzing mistakes.

👉 My Advice: Instead of solving 1000+ random problems, focus on:

Quality over quantity – Master 150-250 well-selected problems covering all patterns.
Mock interviews – Practice explaining your solutions to another person.
System design & CS fundamentals – Especially for senior roles.
What Do You Think?
❓ How many LeetCode problems have you solved, and do you think it helped you in your career?
🔥 Drop your thoughts in the comments! Let’s discuss. 👇