Binary search tree delete root node

A Binary Search Tree BST is a binary tree that satisfies the following requirements:.

java - Remove method binary search tree - Stack Overflow

For example, if we want to delete 19 from the above BST example, we can just simply wipe out the link and reclaim the memory by deleting the node and making its parent pointing to NULL cut the link and wipe out the memory. Because we would abandon its sub tree as well. To delete a node with only 1 child, we can link its parent node to its only child.

Binary search tree - Wikipedia

For example, if we want to delete 7 in the above BST, we can link 5 to its only child 9, and remove the node 7. In other words, the sub tree of the to-be-deleted node will be re-attached and the properties of BST will be still valid. If we want to delete 15 from the above BST, we can do some tricks to reduce the situation to either case 1 or case 2.

BINARY SEARCH TREE :: DELETION (REMOVAL) ALGORITHM (Java, C++) | Algorithms and Data Structures

So this is the case of deleting node with only 1 children. Of course we have a duplicate 17 after replacing 15 with the value Another to note is that if the value found either maximum or minimal has no children, then we are reducing the case to case 1 where deleting a leaf node from a BST tree.

To represent a tree, we use the following structure:. Then the deletion function goes like this. To delete a node, we need to first locate it in the tree.

The function returns the root node because the root may change after deletion. The FindMin function finds the minimal node of the given BST.

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A Binary Search Tree BST is a binary tree that satisfies the following requirements: The value of a parent node is bigger than all values of its left sub tree. The value of a parent node is smaller than all values of its right sub tree. The following is an example of BST: GD Star Rating loading VPS Review — Vultr High Performance SSD Cloud.

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