(a) Give a generic solution to Exercise 6.19. Data From Exercise 6.19: Write a C++ preorder iterator...

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(a) Give a generic solution to Exercise 6.19.

Data From Exercise 6.19:

Write a C++ preorder iterator to supply tree nodes to the loop in Example 6.69. You will need to know (or learn) how to use pointers, references, inner classes, and operator overloading in C++. For the sake of (relative) simplicity, you may assume that the data in a tree node is always an int; this will save you the need to use generics. You may want to use the stack abstraction from the C++ standard library.

(b) Translate this solution into Ada, Java, or C#.

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