I have been banned from Project Euler for life, and cannot login to my previous account projecteuler.net/profile/cirosantilli.png
The problem leaderboard contains several people solved the problem within minutes of it being released, so almost certainly with an LLM.
I'm a huge believer in giving answers to problems, and I take the ban with pride.
It is funny to see that people waste their time policing this kind of useless stuff.
Project Euler likely has many fun problems, and can be a useful machine learning benchmark.
The "secret club" mentality is their only blemish, and incompatible with open science.
They should also make sure that LLMs don't one shot their future problems BEFORE publishing them!