Assume each arc in the diagram goes only in the direction indicated by the arrow. The shortest route algorithm is applied to the network to determine the shortest route from A to K. The first nodes placed in the permanent set are C, D, F, and E. The next node could be

Assume each arc in the diagram goes only in the direction indicated by the arrow. The shortest route algorithm is applied to the network to determine the shortest route from A to K. The first nodes placed in the permanent set are C, D, F, and E. The next node could be

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

See similar textbooks

Similar questions

Input: You are given a directed graph G modeling a flight network: There is an edge from airport A to B if there is a direct flight from A to B. The capacity of an edge e is labeled with the corresponding flight capacity cap(e). Each edge has a start time st(e) and a finish time ft(e). Task: Given a source and a target airport, our goal is to find the maximum number of passengers that can be sent from the source airport starting at 6AM to the target airport within 5 hours (11AM). Example: (e_1: A to B cap 80, st 6AM, ft 9AM), (e_2: B to C cap 100, st 7AM, ft 11AM), (e_3: B to C cap 60, st 10AM, ft 11AM). If the input contains A as the source and C as the target, then the output is 60 passengers. Give an efficient algorithm (to the best of your knowledge) and a formal proof of correctness for your algorithm. An answer without any formal proof will be considered incomplete. Analyze the running time of the algorithm. You must write down your algorithm as pseudocode or describe it as a…
give an example of a network with no more than 6 nodes and define all the data structure used by a distence vector and a link state algorithm. perform one iteration for both the algorithm families and show the aforementioned structires are uptaded
Exercise # 4: Level of each node in the graph How to determine the level of each node in the given graph? As you know, BFS involves a level-order traversal of a graph. Hence, you can use BFS to determine the level of each node as well. S Level 0 1 Level 1 Level 2 3 4 5 6. Level 3 Exercise # 4a: Write a function nodes_of_level(G, level) that takes a graph and level number as input and returns a list of all the nodes that are on the given level. Example 1: Input Adjacency list representation of graph shown above. level = 1 Output [1, 2] Example 2: Input Adjacency list representation of graph shown above. level = 2 %3D Output [3, 4, 5, 6] 9, 2.
write simple code in Python and mention comments at each and every step of code (mandatory).
graph and optimization help pls!
1 2 2 4 3 3 4 1. Use the network graph above (nodes are 1, 2, 3, 4 in bold) for Dijkstra’s algorithm, assuming 2 is source. The initial values in the D (distance) and R (next hop) arrays are given in the tables below. 1 3 4 1 3 4 u V D[u] | 2 4 R[v] 3 00 a) The node u that the algorithm will select next is: Answer: u= b) The first iteration of the outer while loop in the algorithm is now done using the above node u. Fill in the values in the D and R arrays in the tables below after doing this first iteration only. 1 3 4 V 1 3 4 D[u] R[v)
Write a program that creates the minimum spanning tree for the graph in Figure
Provide the frequency and the Huffman encoding for each character in the following string: better late than never Provide the frequency and encoding for each character in the string. Insert the letters and their frequencies into the priority queue in the alphabetic order below, with blank first. When a node with the same frequency is inserted in the priority queue, it is placed after other nodes with the same frequency already in the priority queue. Refer to algorithm 3.4.1. Encode the resulting graph with the left child as O and the right child as 1.
There are four different human blood types: O, A, B and AB. The relationships between donor and recipients for these blood types are as follows: Type O can donate blood to any type. Type AB can receive blood from any type. Each type can donate blood to its own type. Each type can receive blood from its own type. Which one of the following donor-recipient bipartite graphs correctly represents this information? A B AB donor recipient NHL B O A B AB donor C 0 A B AB donor recipient recipient XXX B AB 0 A BAB OA B AB D A B AB donor recipient ENN EWM O A BAB OABAB E A BAB donor recipient
3. (1) Replace the numbers B1, B2, B4, and B8 as you got in Question 1 in the graph below. (2) Find the shortest path start at Node "a" to every other node in the following graph. You must show each step. B1 b 7 B4 B1 3 608 2 B8 B8 80 h f B8
5.04-4. Bellman Ford Algorithm - a change in DV (1, part 4). Consider the network below, and suppose that at t=0, the link between nodes b and c goes down. And so at t=0, node b recomputes its distance vector (DV) and sends out its new DV (as needed). At t=1 this new DV is received at b's neighbors, who then perform their calculation and send out their new DVs (as needed); these new DVs arrive at their neighbors at t=2, and so on. What is the last time in this network at which a DV calculation will take place as a result of the link change at t=0? U O O o 1 1 3 2 at t=0 the link (with a cost of 1) between nodes b and c goes down A 8 1 6 compute 1 1 1 1 an essentially infinite amount of time; this is the count-to-infinity problem 1 Second
5.01-3. Dijkstra's Algorithm (1, part 3). Consider the network shown below, and Dijkstra's link-state algorithm to find the least cost path from source node U to all other destinations. Using the algorithm statement and its visual representation used in the textbook,complete the third row in the table below showing the link state algorithm's execution by matching the table entries (a), (b), (c), (d) and (e) with their values. Write down your final [correct] answer, as you'll need it for the next question; the *s shown correspond to your answers to earlier parts of this question. [Note: You can find more examples of problems similar to this here B.) (a) 3 (b) 8 ·V- 2 X Step 0 u 11 1 2 (a) 4 * 2 6 -W 3 W X y Z N' D(v),p(v) D(w).p(w) D(x),p(x) D(y).p(y) D(z).p(z) 00 1 (b) Z (c) [Choose ] [Choose 1 (d) (e)