Channi Studies

SearchGiven a key, a search algorithm returns the first node found matching that key, or returns null if a matching node is not found. A simple BST search algorithm checks the current node (initially the tree's root node), returning that node as a match, else assigning the current node with the left (if key is less) or right (if key is greater) child and repeating. If such a child is null, the a..

Binary Search TreesAn especially useful form of binary tree is a binary serach tree (BST). BST has an ordering property that any node's left subtree keys ≤ the node's key and the right subtree's keys ≥ the node's key. This property enables fast searching for an item. Searching To search nodes means to find a node with a desired key, if such a node exists. A BST may yield faster searches than a..

File SystemsTrees are commonly used to represent hierarchical data. A tree represent files and directories in a file system, since a file system is a hierarchy. A file in a file system tree is alwyas a leaf node. A directory in a file system tree can be both leaf node or internal node. Unlike binary trees that have a fixed number of children per node (0-2), a file system tree must support a vari..

Binary Tree In a list, each node has up to one successor. In a binary tree, each node has up to two children, known as a left child and a right child. "Binary" means two, referring to the two children. Some more definitions related to a binary tree:Leaf: A tree node with no children.Internal node: A node with at least one child.Parent: A node with a child is said to be that child's parent. A nod..