if it works, it works.

can't complain.

Clearly clever, but isn't it costy as well?

Super clean and readable!

on behalf of everyone, thank you!

Thanks for correcting the test cases. I was wondering what on earth happened with my calculations!

I had to view the solutions to understand part of this so I need to work on my calculus

I've taken the liberty to fix the open issues and suggestions. A JS translation was added in the process. Enjoy :)

done

done

The last two sample tests need to be changed :

n_vals = [[1, 0], [2, 3], [3, 18], [4, 60], [5, 150], [342, **420115062**], [56753, **386209565**]]

The description should use katex to increase readability:

Let `$f(n) = \int_0^n\,\lfloor x\rfloor\:x\:\lceil x\rceil\; dx$`

=>

Let $ f(n) = \int_0^n\,\lfloor x\rfloor\:x\:\lceil x\rceil\; dx$

Link: https://docs.codewars.com/references/markdown/extensions#math-typesetting

f(n) = ∫₀ⁿ ⌊x⌋x⌈x⌉ dx

`$ f(n)=\int_0^n \lfloor x \rfloor x \lceil x \rceil dx $`

$ f(n)=\int_0^n \lfloor x \rfloor x \lceil x \rceil dx $

Example tests are still wrong.