CoNP

CONP is like a club for hard problems that are really tricky to solve. These problems are so difficult that it is hard to tell if they can be solved or not. Some problems are easy and some are hard, just like how some puzzles are easy to solve and some are harder. CONP is a special club that keeps all the really hard problems together. Scientists and mathematicians study these problems and try to find ways to solve them, but they are still a mystery. Maybe someday, someone will be able to break the code and solve these tricky problems!