Why You’re Wrong If You Think Java Is Slow and C Is Fast (Or Vice-Versa)

I’ve been meaning to write something like this for a bit. This post isn’t for you experts: You’ll understand this all already. I’m noting this here because I haven’t y… Read more

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Functional Programming in Java

If you have ever used Streams and Optionals in Java, you must have come across lambda expressions and functional interfaces. But how exactly are lambda expressions tied to functional interfaces? This… (more…)

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Check If Valid Sudoku Blocks in Java

The challenge of solving valid Sudoku blocks Determine if a 9×9 Sudoku board is valid. Only the filled cells need to be validated according to the following rules: Each row must contain the digits 1-9 without repetition. Each column must contain the digit... (more…)

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