Why is this code dumped in this compiler?

Question

https://sololearn.com/compiler-playground/cktGZejT4uB8/?ref=app

Answer 1

You can't have a remainder of something that you didn't divide ( line 29 ).

From C++ Standard(2020), section 7.6.5/4 says:
...
If the second operand of / or % is zero the behavior is undefined;
...

Answer 2

TeaserCode ,

it would be better to put and save the code in playground and post a link to it here.

Answer 3

MO ELomari thank you very much, you have right

Answer 4

Which programming language is it?

Answer 5

Como funciona esse app