NP problems

NP problems are a class of computational problems for which solutions, if provided, can be quickly verified as correct, but finding that solution in the first place may be very difficult and time-consuming. Think of it like a puzzle: verifying if a completed puzzle matches the picture is easy, but solving the puzzle from scratch can be complex. These problems are significant in computer science because many real-world issues—like optimizing routes or scheduling—are NP problems. The big question is whether all NP problems can be solved efficiently like they can be verified.