P=NP
Whether P=NP is an unsolved problem in computer science. Informally, the problem asks if all problems whose solutions can be checked quickly can have those solutions found quickly. More formally, a collection of yes or no questions is a said to be in P if there exists a Turing machine T, an integer k and constant C such that which which will correctly answer whether the answer is yes or no, and the Turing machine will always terminate after a number of steps bounded by Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle Cn^k} where n is the length of the input. A problem is said to be in NP if the same holds true for a non-deterministic Turing machine. It is not hard to see that any problem in P is also in NP. It is unknown if P=NP or not. This problem is one of the seven Millennium problems which each have a million dollar prize.
Links
- P vs NP Problem - Clay Mathematics Institute
- Eight Signs A Claimed P?NP Proof Is Wrong - Technology Review - Friday, August 13, 2010