Sample Tree As An Array
Pretty easy question:
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- Sample Data Structures Questions Chapter 10 Trees Data Structures and Other Objects Using C by Michael Main and Walter Savitch Second Edition ISBN 0-201-70297-5, Softcover, 816 pages, 2000.
Recursively how can I create an array of a binary search tree (in order) which uses this constructor:
GregIn-Order means you first have to traverse the left part of the tree, so: TreeNode tree // this is your tree you want to traverse E array = new Etree.size; // the arrays length must be equivalent to the number of Nodes in the tree int index = 0; // when adding something to the array we need an index inOrder(tree, array, index); // thats the call for the method you'll create.
Greg
2 Answers
In-Order means you first have to traverse the left part of the tree, so:
The method itself could looks something like this:
Somewhat like that. I am just not sure about the index and where it needs to be incremented. If you don't want to worry about the index or if you don't know how many nodes are in the tree, then use an ArrayList instead and transform it in the end to an array.
Normally a cleaner call method is build around the recursive method like this:
Sample Tree As An Array In Excel
GameDroidsGameDroidsThanks, that worked great. Java wouldn't allow me to make an array of generics so using your algorithm I made it work with an ArrayList (like you suggested) Here's the method (using the above constructor) just incase someone else asks the same question. (Ref is my reference to the current tree node)
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GregGreg