In complexity theory and computability theory, an oracle machine is an abstract machine used to study decision problems. It can be visualized as a Turing machine with a black box, called an oracle, which is able to solve certain decision problems in a single operation. The problem can be of any complexity class.
Sofia Carson is an American singer and actress. She played Chelsea in an episode of Austin and Ally, and played Evie in Descendants. She also played Lola Perez in Adventures in Babysitting.
Emily Osment as Gabi Diamond, a young chef, lives in San Francisco with her best friend, Sofia. She loves cooking and she can even figure out what people like to eat. Her mother died while she was still a teenager and she has been on her own ever since.