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Welcome to CSC 175

Welcome to CSC 175. Advanced Software Applications. Who are you?. Name Born Major, Minor Why you chose CUW. Written Assignment 0. ICS text problem 8 TSP problem. Traveling Salesperson.

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Welcome to CSC 175

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  1. Welcome to CSC 175 Advanced Software Applications

  2. Who are you? • Name • Born • Major, Minor • Why you chose CUW

  3. Written Assignment 0 • ICS text problem 8 • TSP problem

  4. Traveling Salesperson • Given a number of cities and the costs of traveling between any two cities, what is the “best” round-trip route that visits each city once and returns to the starting city?

  5. Wassn0 • Traveling Salesperson • “Best Route” problem

  6. grows “large” quickly • 6 cities = 100+ paths …

  7. very, very large quickly • 20 cities = many paths! A fast PC checking 1,000,000 paths per second would take years

  8. ICS text problem 9 • algorithm • detailed & unambiguous set of step-by-step procedures for solving a problem

  9. algorithm example • determine square footage of rooms • length * width • not: 36 * 25

  10. algorithm must: • be general purpose • use variables

  11. Algorithm concepts • separation of data and instructions • symbolic representations of data

  12. control structures • sequence • selection • repetition

  13. Problem! • I need a brochure for the CUW CS program • Create it!

  14. Problem - remember • analysis first • synthesis second

  15. Problem! • one way to solve: • ask questions • be creative

  16. Dorothy Sayers • creative activity is trinitarian: idea, energy, and power

  17. CS trinitarian creation • idea • implementation • interaction

  18. Systems Assignment 0 • I have the “ideal” brochure in my mind, your job is to “get it out”

  19. Why not just ask … • what the customer wants? • - customer may not really know • - language is …

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