'Post order' presentation slideshows

Lecture 14

Lecture 14. Traversals of Linked Lists Preorder BST Traversal Postorder BST Traversal Miscellaneous BST Traversals Depth First vs Breadth First Array Traversals. Traversals of Linked Lists. The Scenario. We need to visit each element in the linked list. At each element, we do some work.

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Advanced Dynamic Programming II

Advanced Dynamic Programming II. HKOI Training Team 2004. In the previous lesson. What is DP? Some examples of DP Probably NOT enough for you to solve DP problems in IOI/NOI Except those classic ones To identify a DP problem, the keys are Recurrence Optimal substructure

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Building Java Programs Chapter 17

Building Java Programs Chapter 17. Binary Trees. Creative use of arrays/links. back. front. 24. 49. 11. 7. Some data structures (such as hash tables and binary trees) are built around clever ways of using arrays and/or linked lists. What array order can help us find values quickly later?

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Comp 245 Data Structures

Comp 245 Data Structures. Trees. Introduction to the Tree ADT. A tree is a non-linear structure. A treenode can point to 0 to N other nodes. There is one access point to the tree ; it is called the root . A tree is recursive in nature. Terminology Using a Binary Tree. Root Child

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Median and Beyond: New Aggregation Techniques for Sensor Networks

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Energy-Efficient Broadcast and Multicast Trees for Reliable Wireless Communication

Energy-Efficient Broadcast and Multicast Trees for Reliable Wireless Communication. Suman Banerjee, Archan Misra, Jihwang Yeo and Ashok Agrawala IEEE Wireless Communications and Networking Conference (WCNC) 2003 Speaker: Ju-Mei Li. Outline. Introduction Calculating Energy Costs

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CSE 326 Trees

CSE 326 Trees. David Kaplan Dept of Computer Science & Engineering Autumn 2001. Trees. Family Trees Organization Charts Classification trees what kind of flower is this? is this mushroom poisonous? File directory structure Parse trees (x + y * z) Search trees

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ADT Tree

ADT Tree. Tree : nonempty collection of vertices and edges that satisfies certain requirements. Vertex ( node ): Have a name and carry other associated information Edge : A connection between two vertices.

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The ADT Binary Tree

Definition. The ADT Binary Tree is a finite set of nodes which is either empty or consists of a data element (called the root ) and two disjoint binary trees (called the left and right subtrees of the root), together with a number of access procedures. r.

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Lecture 11 Graph Algorithms

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Cs212: Data Structures

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Traversals

Traversals. A systematic method to visit all nodes in a tree Binary tree traversals: Pre-order: root, left, right In-order: left, root, right Post-order: left, right, root General graph traversals (searches) Depth-first search Breadth-first search. Inorder(tree t). if t = nil

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Data Structure

Data Structure. An Overview Approach. Data Type v/s Data Structure. Data Type= Permitted data value (domain) +operations Data Structure= Organized data type +Allowed operations. Data structure at a glance. Major Operations. Insertion Deletions Traversal Searching

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CS261 Data Structures

CS261 Data Structures. Tree Traversals. Goals. Euler Tours Recursive Implementation Tree Sort Algorithm. Binary Tree Traversals. What order do we enumerate nodes in a tree ?. Binary Tree Traversals. All traversal algorithms have to: Process a node (i.e. do something with the value)

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Using Visualization Tools

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Tree Traversals & Maps

Tree Traversals & Maps. Nelson Padua-Perez Chau-Wen Tseng Department of Computer Science University of Maryland, College Park. Tree Traversal. Goal Visit every node in binary tree Approaches Depth first Preorder ? parent before children Inorder ? left child, parent, right child

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Syntax Directed Translation

Syntax Directed Translation. Syntax directed translation. Yacc can do a simple kind of syntax directed translation from an input sentence to C code We can also think of it as compilation Each node in a parse tree produces a value That value depends on the type of the node

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