good

I see your point, but as a beginner, the first time I cam across such a solution, it really opened my eyes.

Cool trick, but I think this misses the point of the challenge. The goal seems to be practicing logic and problem-solving, not just renaming an existing method. This might confuse beginners who are trying to learn how to implement things themselves. It’s clever, but not the best for learning.

Great!

I think this conditional is taking advantage of the fact that an empty array is "falsy" in python which is why this works :)

Didn't know about this If Array meaning that there's an array there. That's great.

This helped a lot. Thanks. Haha

clever, but suboptimal

Nice solution

Yes, @Invisibleman. Python uses None, rather than null though.

Both list comprehension and RE is O(n) in this case.

I approached same this way

meh... questionable readability factor here

i have question ....is it clear ??