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All HackerRank practice problem tutorials in java
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Wishing you & your family a very very Happy New year 2023 πŸ₯³πŸŽŠπŸŽ‰
Wishing you & your family a very very Happy New Year πŸ•›πŸŽŠ

Hopefully in 2024 will rock together πŸ‘ 😊
Hi All,
if you are a coder you can check this out.. its good deal-
https://amzn.to/3XVzig9
I had studied this Dynamic Programming book a long time back during my DSA preparation.
It really helped me build a strong foundation and solve problems with confidence.
Sharing the link here in case anyone wants to check it out: Link
Wishing you & your family a very Happy Deepawali!
πŸ“š A book worth reading if you build backend systems πŸ‘‡
🧠 There's a difference between knowing Kafka and understanding distributed systems.
You can build APIs, configure Kafka consumers, and work with databases every dayβ€”but can you explain what happens when things go wrong?
β†’ Why doesn't Kafka automatically guarantee that your business operation happens only once?
β†’ Why can two database replicas disagree even when both are healthy?
β†’ Why can adding more servers make a system more expensive without fixing the real bottleneck?
These are the kinds of questions that separate writing backend code from understanding the systems behind it.
I've personally read part of the original edition of a book that explores these concepts in depth. What makes it worth exploring is that it focuses on the reasoning behind data systemsβ€”not just the tools or frameworks.
There's now an updated second edition, too.
If you're working with Java, Spring Boot, Kafka, or microservicesβ€”or preparing for senior backend interviewsβ€”this is one resource I'd suggest looking into.
πŸ“˜ Curious what the updated edition covers? Take a look here:
https://link.amazon/B0iadbjlH