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Recursion in programming refers to the process in which a function calls itself directly or indirectly to solve a problem. It's a powerful concept to solve problems that can be broken down into smaller, similar subproblems.

Time to check out the documentation again! And think about the big O, time complexity and space complexity! Remember data structure is used to store and operate data.

I often ask myself, what's the difference between those developers with different years of experience? If I know clear about it, it gonna be much easier to improve accordingly.

As the name indicated, Kafka is about writing. Writing data. Consume and produce data. It is an open-source distributed event streaming platform used for building real-time data pipelines and streaming applications.