3 ms·
Sorry that's wrong. I have a math phd and i trained for Olympiads in high school. These problems are not easy for me at all. Maybe for top mathematicians who us
by Davidzheng 2y ago
Sorry that's wrong. I have a math phd and i trained for Olympiads in high school. These problems are not easy for me at all. Maybe for top mathematicians who used to compete.