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20. In a binary search tree, the immediate predecessor of a given node is the largest node in its left subtree. For example, the immediate predecessor of node 25 in the following tree is 23 while it is 15 for node 16. Nodes 21 and 39 do not have an immediate predecessor because none of them has a left child. 25 Write a non-recursive method immediate Predecessor, which takes a BSTNode parameter node (a reference to a node in a binary search tree) and returns a reference to its immediate predecessor in the tree. If node is null or it does not have an immediate predecessor, the method returns null. public class BSTNode. / 1 39 1 16 / \ 12 21 43 / \ \ 4 15 23 42 50

20. In a binary search tree, the immediate predecessor of a given node is the largest node in its left subtree. For example, the immediate predecessor of node 25 in the following tree is 23 while it is 15 for node 16. Nodes 21 and 39 do not have an immediate predecessor because none of them has a left child. 25 Write a non-recursive method immediate Predecessor, which takes a BSTNode parameter node (a reference to a node in a binary search tree) and returns a reference to its immediate predecessor in the tree. If node is null or it does not have an immediate predecessor, the method returns null. public class BSTNode. / 1 39 1 16 / \ 12 21 43 / \ \ 4 15 23 42 50

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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} 20. In a binary search tree, the immediate predecessor of a given node is the largest node in its left subtree. For example, the immediate predecessor of node 25 in the following tree is 23 while it is 15 for node 16. Nodes 21 and 39 do not have an immediate predecessor because none of them has a left child. 25 / 1 Write a non-recursive method immediate Predecessor, which takes a BSTNode parameter node (a reference to a node in a binary search tree) and returns a reference to its immediate predecessor in the tree. If node is null or it does not have an immediate predecessor, the method returns null. public class BSTNode 4 { private int m_info; private BSTNode m_left; private BSTNode m_right; public int getInfo() {return m_info; } public void setInfo (int value) {m_info = info; } public BSTNode getLeft () {return m_left; } public void setLeft (BSTNode left) (m_left = left; } public BSTNode getRight () {return m_right;} public void setRight (BSTNode right) {m_right = right;} } public BSTNode immediate Predecessor (BSTNode node) { 16 / \ 12 21 39 1 43 / \ 15 23 42 50
Transcribed Image Text:} 20. In a binary search tree, the immediate predecessor of a given node is the largest node in its left subtree. For example, the immediate predecessor of node 25 in the following tree is 23 while it is 15 for node 16. Nodes 21 and 39 do not have an immediate predecessor because none of them has a left child. 25 / 1 Write a non-recursive method immediate Predecessor, which takes a BSTNode parameter node (a reference to a node in a binary search tree) and returns a reference to its immediate predecessor in the tree. If node is null or it does not have an immediate predecessor, the method returns null. public class BSTNode 4 { private int m_info; private BSTNode m_left; private BSTNode m_right; public int getInfo() {return m_info; } public void setInfo (int value) {m_info = info; } public BSTNode getLeft () {return m_left; } public void setLeft (BSTNode left) (m_left = left; } public BSTNode getRight () {return m_right;} public void setRight (BSTNode right) {m_right = right;} } public BSTNode immediate Predecessor (BSTNode node) { 16 / \ 12 21 39 1 43 / \ 15 23 42 50
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