I love this Math.ceil method.

Not a kata suggestion. See https://docs.codewars.com/training/troubleshooting/#post-discourse.

clean and single line code. what about edge cases? "will it throw invalid on -3000"

Textbook solution. Excellent.

Exactly, they don't own that problem. And the description here is different.

Definitely not ( IANAL and this is not legal advice ). But copyright applies to literal description text, examples, or test code; not the task in itself. The description is different, and though I can't read Leetcode's tests, they are probably different as well.

IDK, this kata isn't as simple as the other one, but to me it still looks like a basic raw algorithm rather than something combining enough unique ideas for the idea of the task to be copirightable (as opposed to the exact text).

I don't see anything that looks copied, the same maximum length of 2*10^4 isn't much.

Potential copyright infringement: https://leetcode.com/problems/subarray-sum-equals-k/.

Potential copyright infringement: https://leetcode.com/problems/minimum-window-substring/.

Thank you! I had a hard time understanding but now is much clearer!

Wizardry

We don't need dsa for this.
.map is just a transformation function.

Not a kata suggestion. See https://docs.codewars.com/training/troubleshooting#post-discourse.

😂😂😂😂😂😂