It seems that publishing solutions on You are not allowed to view links.
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Login to view. has been quite popular recently: 6 articles, all AI-generated unfortunately. It gets you a DOI, which may be useful for proper citations in later publications I suppose.
You will need to write down your findings by yourself.
The form is secondary. The substance matters.
If you want recognition, make sure that it is clear who you are.
If you did not use any earlier research or results, just say so.