A couple of us disagreed (in comments) on whether titles such as "Advent of Code 2019 Day 3, Part 3" and "Project Euler nº 5" are reasonable.

I believe that such titles are meaningless, and reviewers want some idea of the problem domain when deciding whether to read a question, but there seems to be a precedent for such titles.

Should these titles be edited to summarise the problem statement?

(N.B. this particular question has only a link to the problem statement, and no description in the question itself, so it's unarguably off-topic until that's fixed; I'm only asking about the question title.)