I had issues (failed interviews for C++ MCQs) and similar questions can be asked during the rounds as well, so I thought about adding a few of the stuff that came up for me for an example. Use GPT4 / ... to generate similar ones (+YT has playlists for "Guess the Output" in C++ / Java).

Guess the Output are from Interactive Brokers. Akuna asks C++17/20 std ones (i.e. std::string_view, ...).