Lisp is not just an old language. It is one of the languages that helped shape the early imagination of artificial intelligence. It introduced ideas that still feel surprisingly modern: recursion, ...

But the interviewer was focused on optimization and clean logic rather than just getting the answer. The challenge involved: ⚡ Detecting duplicates efficiently ⚡ Maintaining the longest valid window ⚡ ...

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I created this repository because there came a point where I felt that just watching tutorials wasn't going to cut it. Programming doesn't truly "make sense" until you open a blank file and solve ...