Binary Search Tree for design and analysis

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JavedKhan524377

Design and analysis chapter

What is a Binary Search Tree?
• The binary search tree is an algorithm used for analyzing the node, its
left and right branches, which are modeled in a tree structure and
returning the value.
• The BST is devised on the architecture of a basic binary search
algorithm; hence it enables faster lookups, insertions, and removals of
nodes.
• This makes the program really fast and accurate.

• A BST is made of multiple nodes and consists of the following attributes:
• Nodes of the tree are represented in a parent-child relationship
• Each parent node can have zero child nodes or a maximum of two subnodes.
• Every sub-tree, also known as a binary search tree, has sub-branches on the
right and left of themselves.
• The keys of the nodes present on the left subtree are smaller than the keys of
their parent node

Binary Search Tree for design and analysis

• BST is commonly utilized to implement complex searches, robust
game logics, auto-complete activities, and graphics.
• The algorithm efficiently supports operations like search, insert, and
delete.

• BST primarily offers the following three types of operations for your
usage:
• Search: searches the element from the binary tree
• Insert: adds an element to the binary tree
• Delete: delete the element from a binary tree

Search Operation
• Always start analyzing tree at the root node.
• Then move further to either the right or left subtree of the root node
depending on the element to be located is either less or greater than the
root.

• The element to be searched is 10
• Compare the element with the root node 12, 10 < 12, hence you move
to the left subtree. No need to analyze the right-subtree
• Now compare 10 with node 7, 10 > 7, so move to the right-subtree
• Then compare 10 with the next node, which is 9, 10 > 9, look in the
right subtree child
• 10 matches with the value in the node, 10 = 10, return the value to the
user.

Pseudo Code for Searching in BST
• search(element, root)
• if !root
• return -1
• if root.value == element
• return 1
• if root.value < element
• search(element, root.right)
• else
• search(element, root.left)

Insert Operation
• This is a very straight forward operation.
• First, the root node is inserted, then the next value is compared with
the root node. If the value is greater than root, it is added to the right
subtree, and if it is lesser than the root, it is added to the left subtree.

• There is a list of 6 elements that need to be inserted in a BST in order
from left to right ( 12, 7, 9, 19, 5, 10)
• Insert 12 as the root node and compare next values 7 and 9 for
inserting accordingly into the right and left subtree
• Compare the remaining values 19, 5, and 10 with the root node 12 and
place them accordingly. 19 > 12 place it as the right child of 12, 5 < 12
& 5 < 7, hence place it as left child of 7.
• Now compare 10, 10 is < 12 & 10 is > 7 & 10 is > 9, place 10 as right
subtree of 9.

• You should practice in lab (tomorrow) about different ways of
Delete operation of BST

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Binary Search Tree for design and analysis

1. Binary Search Tree

2. What is a Binary Search Tree? • The binary search tree is an algorithm used for analyzing the node, its left and right branches, which are modeled in a tree structure and returning the value. • The BST is devised on the architecture of a basic binary search algorithm; hence it enables faster lookups, insertions, and removals of nodes. • This makes the program really fast and accurate.

3. • A BST is made of multiple nodes and consists of the following attributes: • Nodes of the tree are represented in a parent-child relationship • Each parent node can have zero child nodes or a maximum of two subnodes. • Every sub-tree, also known as a binary search tree, has sub-branches on the right and left of themselves. • The keys of the nodes present on the left subtree are smaller than the keys of their parent node

5. • BST is commonly utilized to implement complex searches, robust game logics, auto-complete activities, and graphics. • The algorithm efficiently supports operations like search, insert, and delete.

6. • BST primarily offers the following three types of operations for your usage: • Search: searches the element from the binary tree • Insert: adds an element to the binary tree • Delete: delete the element from a binary tree

7. Search Operation • Always start analyzing tree at the root node. • Then move further to either the right or left subtree of the root node depending on the element to be located is either less or greater than the root.

9. • The element to be searched is 10 • Compare the element with the root node 12, 10 < 12, hence you move to the left subtree. No need to analyze the right-subtree • Now compare 10 with node 7, 10 > 7, so move to the right-subtree • Then compare 10 with the next node, which is 9, 10 > 9, look in the right subtree child • 10 matches with the value in the node, 10 = 10, return the value to the user.

10. Pseudo Code for Searching in BST • search(element, root) • if !root • return -1 • if root.value == element • return 1 • if root.value < element • search(element, root.right) • else • search(element, root.left)

11. Insert Operation • This is a very straight forward operation. • First, the root node is inserted, then the next value is compared with the root node. If the value is greater than root, it is added to the right subtree, and if it is lesser than the root, it is added to the left subtree.

12. • There is a list of 6 elements that need to be inserted in a BST in order from left to right ( 12, 7, 9, 19, 5, 10) • Insert 12 as the root node and compare next values 7 and 9 for inserting accordingly into the right and left subtree • Compare the remaining values 19, 5, and 10 with the root node 12 and place them accordingly. 19 > 12 place it as the right child of 12, 5 < 12 & 5 < 7, hence place it as left child of 7. • Now compare 10, 10 is < 12 & 10 is > 7 & 10 is > 9, place 10 as right subtree of 9.

14. • You should practice in lab (tomorrow) about different ways of Delete operation of BST

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