Needs to be answered using Dr. Racket (R5RS) language. Only Dr. Racket language (R5RS) scheme. NoJava or C++.Question: Define a SCHEME procedure, named (bfs T)which traverses a binary tree in BFS order andproduces a list of the values of the nodes of the tree in the order in which the nodes were "visited."5. Another traversal order visits a nodes children before visiting their children (i.e. the node'schildren's children). This traversal ordering is referred to as Breadth-First Search (BFS)order and is shown in Figure 3. Again, since we are working explicitly with binary trees,there are no cycles in our "graph" and we can safely neglect to record which nodes havebeen visited already by our algorithm.8.Figure 3: A binary tree showing the order in which nodes are visited in a BFS traversal as thevalue at each node.To implement a function showing BFS traversal of a tree, we use a Queue ADT. In thiscase, the root node is enqueued into the Queue ADT. Next, a node is dequeued, that node'schildren are enqueued into the queue ADT, and finally the value at the dequeued node isadded to the front of the list obtained by visiting the rest of the nodes in the queue. SeeAlgorithm 3. Define a SCHEME procedure, named (bfs T) which traverses a binary treein BFS order and produces a list of the values of the nodes of the tree in the order in whichthe nodes were "visited."Algorithm 3 BFS Traversal of a TreeRequire: A queue ADT containing the root of the tree to traverserepeatdequeue tree node from the queueif left child of node is not null thenenqueue left child onto queueend ifif right child of node is not null thenenqueue right child onto queueend if"visit" nodeuntil the queue is empty

A scheme program consists of one or more procedure. A procedure is a description of process by which a computer can work out some result that we want. e.g:(define(square x)(* xx)) Ford-Fulkerson algorithm->In Ford-Fulkerson algorithm,we can either use in A)Breadth First Traversal(BFT) or B)Depth First Traversal(DFT). Time complexity to O(VE^2). Algoritm(BFS): Step 1: SET STATUS = 1 (ready state)for each node in G Step 2: Enqueue the starting node Aand set its STATUS = 2(waiting state) Step 3: Repeat Steps 4 and 5 untilQUEUE is empty Step 4: Dequeue a node N. Process itand set its STATUS = 3(processed state). Step 5: Enqueue all the neighbours ofN that are in the ready state(whose STATUS = 1) and settheir STATUS = 2(waiting state)[END OF LOOP] Step 6: EXIT

Engineering

Computer Science

uestion: Define a SC ure, named (bTS 1)wn traverses a binary tree in BFS Order and produces a list of the values of the nodes of the tree in the order in which the nodes were "visited." 5. Another traversal order visits a nodes children before visiting their children (i.e. the node's children's children). This traversal ordering is referred to as Breadth-First Search (BFS) order and is shown in Figure 3. Again, since we are working explicitly with binary trees, there are no cycles in our "graph" and we can safely neglect to record which nodes have been visited already by our algorithm.

uestion: Define a SC ure, named (bTS 1)wn traverses a binary tree in BFS Order and produces a list of the values of the nodes of the tree in the order in which the nodes were "visited." 5. Another traversal order visits a nodes children before visiting their children (i.e. the node's children's children). This traversal ordering is referred to as Breadth-First Search (BFS) order and is shown in Figure 3. Again, since we are working explicitly with binary trees, there are no cycles in our "graph" and we can safely neglect to record which nodes have been visited already by our algorithm.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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