Assignment 1 Exercises: 1.5: 1.9: 1.12 15: Briefly describe how integer variables are typically represented on a computer. (look up one's complement and two's complement arithmetic in an introductory computer science textbook if you are not familiar with these.) Why does this representation for integers qualify as a data structure as defined in Section 1.2? 1.9: Does every problem have an algorithm? Why? 1.12: Image that you have been hired to design a database service containing information about cities and towns in the United States, as Described in Example 1.2. Suggest two possible implementations for the database. Assignment 1 Exercises: 1.5: 1.9: 1.12 15: Briefly describe how integer variables are typically represented on a computer. (look up one's complement and two's complement arithmetic in an introductory computer science textbook if you are not familiar with these.) Why does this representation for integers qualify as a data structure as defined in Section 1.2? 1.9: Does every problem have an algorithm? Why? 1.12: Image that you have been hired to design a database service containing information about cities and towns in the United States, as Described in Example 1.2. Suggest two possible implementations for the database