CMSC-341, Fall 1999, Sections 0101
Binary Search Tree REMOVE Operation
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template <class Comparable>
void BST<Comparable>::
remove (const Comparable & x, BinaryNode<Comparable> * & t)
{
if (t == NULL)
return;
if (x < t->element)
remove (t->left);
else if (x > t->element)
remove (t->right);
else if (t->left != NULL && t->right != NULL)
{
t->element = findMin (t->right)->element;
remove (t->element, t->right);
}
else
{
BinaryNode<Comparable> *oldNode = t;
t = t->left != NULL ? t->left : t->right;
delete oldNode;
}
}
]]>
Dennis Frey
Last modified: Sun Sep 26 20:53:16 EDT 1999