omg i feel stupid

If Rust is okay with it, the math must be correct. Perhaps we've entered another dimension?

can someone explain it?

One of the best!

damn i need to learn lambas

Wish I knew this earlier

One suggestion I have is to start off by initializing return_vector like Vec::with_capacity(height * (height + 1) / 2). This way, you can avoid unnecessary allocations. From what I gather, in your situation, Rust reallocates with every push() operation you perform.

I've been checking out other solutions, and yours seems to be the most concise. Thanks!

But this solution does not account for negative values... 🤔

Python...every pythost has it own original solution!

Most readable solution! Good code.

I had the same code as the owner of this post. Thank you for noticing this loophole. I think it was not considered by the creator of the Kata when the checker was coded.