I skimmed through the publicly available questions. The first programming-related one I saw has the answer in the question, not a great start :D [1]
Q: In C23, attributes are allowed in an unbraced (forward) union declaration only in the form “union [[...]] Tag;”. What single character must immediately follow the identifier in that declaration for the attributes to be permitted?
A: ;
Edit: The other programming ones look fine, bad luck I saw this one first I guess.