Mark Hughes (motorsport) His appointment was made by the Secretary of State and was for three years. Mark left Bahrain in 2009 and was asked to help set up the new Middle East facility in Abu Dhabi, Yas Marina Circuit. Mark was a specialist consultant on the project and contributed significantly in getting the venue ready for the first race in November 2009. The Yas Marina Circuit set new standards for a motorsport venue and was the first circuit to host a day/night race. Yas Marina Circuit also won the presitigous FIA Formula One World Championship Race Promoters Trophy. The Abu Dhabi consultancy
Circuit satisfiability problem finding inputs that make the circuit output 1. (The converse, that SAT is reducible to CircuitSAT, is even easier—we simply rewrite the Boolean formula as a circuit and solve that.) Circuit satisfiability problem In theoretical computer science, the circuit satisfiability problem (also known as CIRCUIT-SAT, CircuitSAT, CSAT, etc.) is the decision problem of determining whether a given Boolean circuit has an assignment of its inputs that makes the output true. CircuitSAT has been proven to be NP-complete. In fact, it is a prototypical NP-complete problem; the Cook–Levin theorem is sometimes proved on CircuitSAT instead of on SAT for Boolean expressions