Thank you for fixing the C++ issue. Approved.

C++ fork that

• Fixes this issue (and it's kind of critical, imho)
• Adds assertion messages
• Changes the initial solution, so it has less useless things in it

Please, review and approve/reject as soon as possile.

Who -1 this? It's an absolutely valid issue and must be fixed asap.

That reads more like a statement than a question.

Why morons write these explanations?

Ahh then that would make sense.

Don't feel bad about that. I have no clue either and it looks like in the past five years only 39 people figured it out.

there are no strict perf constraints, many types of solutions are possible

I don't understand what to do?

C++: Tests do not work if the following declarations are removed from a solution:

using namespace std;
using l = unsigned long long;

I don't understand what I'm supposed to be doing.

corrected

done