For (very) advanced coders

Question

Write here all the toughest questions you have come up with! To all Readers of this post! Can you come up with an unprecedented question?

Answer 1

So you want toughest questions of programming from us and then you will make it an assignment in lesson factory.I am right or not? Ask yourself this question?And if you really want some tough question then solve this.
List of some unsolved problems in computer science.
https://en.m.wikipedia.org/wiki/List_of_unsolved_problems_in_computer_science

Answer 2

Toughest problems will have differenet meaning for different coders
//like for me ... some simple problems are also time-consuming , but some coders figure out that very fast ... , U can try the assignments here on SL[which u think are hard ] and after that ... try this 👇

https://www.sololearn.com/discuss/437973/?ref=app