Strings to Node

[Interista]

Hi i have about 5 types of strings having information in each string

i need to transfer them into a binarytree so i need them in one node only

i cant work out what i have to do.. every time i add a string it adds a node i want

5 strings = 1 node ... how do i do this?

thanks!

[rubberman]

Your question is not particularly clear. Please explain the problem scope more specifically. A binary tree has only one item in each node. A B+ tree can have multiple items in each index node. So, if you want 5 strings/items in each node, you need to implement a B+ or AVL tree. Read Knuth Volume 3, "Sorting and Searching" for good algorithms on doing this. FWIW, Knuth is the "bible" of software engineering.

[Interista]

well this is my classess

Like this?

class binarySearchTree
{
public:
binarySearchTree(); 


void treeInsert(treeNode *&root, string newItem, string oldItem, string ollItem, string neeItem, string hapItem);

binarySearchTree::binarySearchTree() :root(NULL)
{
}
void binarySearchTree::treeInsert(treeNode *&root, string newItem, string oldItem, string ollItem, string neeItem, string hapItem)

{
if(root == NULL)
{


root = new treeNode(newItem), (oldItem), (ollItem),  (neeItem),  (hapItem);

return;
}
else if (newItem, oldItem,  ollItem,  neeItem,  hapItem < root->data)
{
treeInsert(root->left, newItem,  oldItem,  ollItem,  neeItem,  hapItem);
}
else
{
treeInsert(root->right, newItem,  oldItem,  ollItem,  neeItem,  hapItem);
}
}//end treeInsert

[rubberman]

"Like this?" - Not really... "This" is pretty crufty. A pointer to a reference in tht treeInsert() method? Come on. Where did you learn C++? I think that it is time that you spend a few $$ and some time with Lord Knuth, Volume 3, Sorting and Searching...

[Interista]

"Like this?" - Not really... "This" is pretty crufty. A pointer to a reference in tht treeInsert() method? Come on. Where did you learn C++? I think that it is time that you spend a few $$ and some time with Lord Knuth, Volume 3, Sorting and Searching...

thanks you have been a great mentor or "help"

[rubberman]

thanks you have been a great mentor or "help"

Sorry, but sometimes I get a bit sarcastic... :-) In any case, just remember the KISS principle. There are a lot of binary tree types. Some allow only one member element per node (a proper binary tree), some that allow more than one member element per node (B+ tree - common in database systems for indexes), and then there are the insert/delete/balance algorithms. This is a complex and complicated domain which is why I referred you to Knuth, who covers all of this in Volume 3 of his seminal work "The Art of Computer Programming".

My opinion is that EVERY computer programmer should have a copy of this set on their book shelf. Also, he recently released volume 4, after about 30 years... I still have to get that one, or a complete copy of the current set. It will only set me back about $172USD on Amazon.com today... :-)

[rubberman]

So, I just went on to Amazon.com and ordered the complete 5 volume set of volume 4 - only set me back about $80USD... :-)

[Interista]

im glad your sarcastic most of the times because so am i:)

im asking for help on a forum to get a faster reply then the duration of a book to get posted to my house..in programming you think logically .. am i right

[rubberman]

Creating a B+ or AVL tree program is not trivial. Having documentation (book or online form) available is most helpful. Here is the Wikipedia link for AVL trees: http://en.wikipedia.org/wiki/AVL_tree

Note that there is a link to a C++ implementation of the algorithm at the bottom of the article.