Yas Marina Circuit circuit bosses and Formula One drivers for the high level of grip it offers. The same aggregate material is used at the Bahrain International Circuit for the Bahrain Grand Prix. On 7 October 2009, the circuit was granted final approval to hold Formula One races by the FIA. Bruno Senna was the first driver to complete a test run on the circuit. GP3 visited Abu Dhabi for the first time at the end of the 2013 season. After the first practice sessions at the 2009 Abu Dhabi Grand Prix, the circuit was welcomed by the drivers, with Nico Rosberg commenting
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