Jagged array problem

Question

Hi everyone. I can not understand why do not all test cases are accepted?

https://code.sololearn.com/cFJX8zZ9KrBR/?ref=app

Answer 1

I think the above solution is right. And probably SoloLearn has accidentally modified a name in their comparison.

Answer 2

This is not your problem.

Answer 3

I have the same problem. :(

Answer 4

Roland you solved this problem☝️