Question: 4. (a) Because traffic is growing heavy in the central part of a city, traffic engineers are planning to change all the streets, which are

4. (a) Because traffic is growing heavy in the central part

4. (a) Because traffic is growing heavy in the central part of a city, traffic engineers are planning to change all the streets, which are currently two-way, into one-way streets. Explain how to model this problem. (9 marks) Build a binary search tree for the words Dublin, Galway, Kildare, Kerry, Kilkenny, Mayo, and Wicklow using alphabetical order (b) (16 marks) (c) Show that pre-order traversals of the ordered rooted trees displayed in Figure 6 produce the same list of vertices. Figure 6 (8 marks)

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