I am looking for a story where the Mc is a genius who became a doctor at a really young age. He saved the lives of a lot of people and gained nation-wide fame. If I am not wrong, at the beginning some people didn't believe in his abilities because he was so young but he later proved them wrong. I don't know if the Mc was a male or female but I know that s/he was really young when s/he became a doctor.
This is a different request: I really enjoyed the story that I previously mentioned, so I was wondering if someone can give me some similar recommendations where the Mc is a world famous genius, or just an unknown genius, but he has to be young and successful in some kind of field. Exp: the hidden owner of a really powerful corporation.
I also once read a story where the Mc was a genius level hacker(one of the best if not the best in the world).The Mc was also young. Can someone remind me of the title of this story?