I want a Python program which automatically downloads the PDFs uploaded to some websites like
https://www.imo-official.org/problems.aspx
without visiting them.

For example, when the IMO happens this year, problems of 2024(and in future years too) would be uploaded to the website, so in order to be able to see those problems, I would have to manually go to the website each year and download the PDF for that year. I want to automate this process, so that I can directly open my folder and see the already downloaded PDF.

So, how can I go about doing this?