It depends on what you're working on. If this function were part of a website backend counting characters in usernames or something, it doesn't really matter at all. But if this is a helper function that is responsible for comparing billions of base pairs in genetic sequencing or part of a stock trading platform where microseconds matter, then you need to rethink it.

Would it matter? I assume itll be a O(2n) vs O(n) but I'm not sure if that's a big deal.

Suggest your version of the correct code

Hermoso <3

Lol, me too. In case I need to translate it to C later.

same l0l0l0l

i feel stupid

I didn`t even know about count method and used loops, lol. Thanks for the best solution!

what's the problem?

Like the clean cut solution! But I think, it defeats the purpose of beginner-friendly critical thinking, breaking down problems etc. Good work nonetheless :)

Totally agreed. But I also think that the context (expected range) where this code is used is important.

In a=b cases, the range is basically range object with one value. and sum function looks for values inside the range object (which in this case is just one value), and sums them up.

Please correct me if i'm wrong.

How does this code handle a = b cases? How does this return the value of a or b in such cases.

proper, neat, obvious....