Whats the point of using auto and then using a trailing return type of int?

Also rare but chad "and" <3.

This will invalidate all existing solutions which is not feasible

Input validation is not part of this task.

If as a input parameter we receive a signed int, then there should exist some tests to verify what if we put as input a negative intiger.

Duplicate issue (see scarecrw's post below).

Missing "#include " in C++ test cases.

fixed by someone

nice :)))

I've just run my code several times and had no warnings. Someone fixed that, or it fixed itself, or you're mistaken :)

someone did

fixed in list of C++ katas to update

Please, avoid C-Style casting in C++ code

fixed

This issue is caused by the test code :)

I'm having this issue. I found out that it is testing other code than mine on submit.