URL: https://xmas.htsp.ro/home 書いたブログが消えてしまい、半泣きしながら書き直してます。 [Misc]: FUNction Plotter Challenge One of Santa’s elves found this weird service on the internet. He doesn’t like maths, so he asked you to check if there’s anything hidden behind it. Remote Server: nc challs.xmas.htsp.ro 13005 Solution まず