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John Hopcroft (born October 7, 1939, Seattle, Washington, U.S.) is an American computer scientist and cowinner of the 1986 A.M. Turing Award, the highest honour in computer science, for “fundamental achievements in the design and analysis of algorithms and data structures.” In addition, Hopcroft made major contributions to automata theory and computational complexity. Hopcroft earned a bachelor’s degree (1961) in electrical engineering from Seattle University and a master’s degree (1962) and doctorate (1964) in electrical...