Question: (20 pts.) Evacuation. A hurricane evacuation order is in effect, but some roads are becoming dangerous in unpredictable ways. To help citizens decide whether

(20 pts.) Evacuation. A hurricane evacuation order is in effect, but some roads are becoming dangerous in

(20 pts.) Evacuation. A hurricane evacuation order is in effect, but some roads are becoming dangerous in unpredictable ways. To help citizens decide whether it is now safer to evacuate or shelter in place, the government has announced a new set of guidelines that depend on a number of factors. One such factor is the number of paths that (under normal conditions) connect a citizen's current location to the shelter they would evacuate to. This number helps balance other considerations like the distance to the shelter and the probability that any given path may now be impassable. Your task is to provide a linear-time algorithm that determines how many paths connect a citizen to their assigned shelter. Assume you are given a directed acyclic graph G, where every vertex represents an intersection, every edge represents a one-way road, and any cycles have been removed to eliminate the possibility of an infinite number of paths. You are also given two vertices c and s, representing the intersections closest to the citizen and their shelter.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

To determine how many paths connect a citizens current location to their assigned shelter in a direc... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Programming Questions!

1 . If a 3 6 0 kg box is sitting on a flat surface and a force of 1 0 0 0 N is applied in the x direction and the coefficient of static friction is . 2 5 , will the box move? a . If the coefficient...

Planning is one of the most important management functions in any business. A front office managers first step in planning should involve determine the departments goals. Planning also includes...

Managing Scope Changes Case Study Scope changes on a project can occur regardless of how well the project is planned or executed. Scope changes can be the result of something that was omitted during...

Questions 1. How will you design a comprehensive (not piecemeal or incomplete) approach to strategic planning for logistics of essential commodities and medicines? List some pressures that are...

Subject: Police Operations Be sure to make sure understand the concepts of the 4th Amendment and, specifically, Probable Cause. Then, read this discussion prompt and type and answer with an...

0405441 Human Factors and Ergonomics Assignment 1 1. Summarise the events of Piper Alpha disaster based on the two articles found on the BB (in less than 500 words). 2. What were the causes of this...

You will be asked to select a company that is publicly traded. You must research and secure the SEC 10-K Annual Report for the most recent year. This is often available at the company web site. Look...

Alternative Dispute Resolution The Search for Alternatives to Litigation Legislatures have tried to find alternatives to costly litigation. These alternatives are called \"alternative dispute...

CASE EXAMPLE Google: who drives the strategy? Phyl Johnson, Strategy Explorers From an idea to a verb in less than 15 years: 'to Google - to search the Internet' If you are in need of the answer to a...

uetion1 OECD Health Statistics 2015 Definitions, Sources and Methods HEALTH STATUS (HEALTH_STAT) Access the dataset on Health Status in OECD.Stat:...

ABC Ltd. Sells a machine to its 80% owned subsidiary XYZ Co, on 1/1/2015. The original cost of the machine was $50,000 and at the date of transfer accumulated depreciation was $20,000. The transfer...

Once you have prepared the adjusted trial balance, you are ready to prepare the financial statements. Preparing financial statements is the seventh step in the accounting cycle. Remember that we have...

Double taxation. The 2016 U.S. Model applies the credit method, if a taxpayer earns income in another country and pays taxes there, the home country reduces its tax liability by granting a credit for...

If nuclei from the embryonic cell of toad A or transferred to an empty ova from toad B, the new individuals will be similar to a. A b. B c. A: B d. A : B

5. Suppose that a = a + ib, where a, b R are fixed. By integrating the function eat over an interval [0, T] and equating real parts, show that (a + b?) | eat cos bt dt = ea" (a cos bT + b sin bT) a.

A sample o 87 professional working women showed that average amount paid annually into a private pension fund per person was SR 3352. The population standard deviation is SR 1100. A sample of 79...

Show that if f and g are both positive increasing functions on interval I then their product FG is increasing on I

8- Question 8. For the material of problem 6, calculate Forging Force in upsetting. To what thickness can a solid cylinder of the material of problem 4 that is 50 mm in diameter and 60 mm high be...

20102Problem 9The following and account balances from the trial balance of the Village Inn at October 31,201(the end of the Inn's fiscal year), arranged in alphabetical order.\table[[201(the end of...

A conceived a secret process for the continuous freeze-drying of foodstuffs and related products and constructed a small pilot plant that practiced the process. A, however, lacked the financing...

Ray fell from a defective ladder while working for his employer. Ray brought suit in strict tort liability against the Alad Corporation (Alad II), which neither manufactured nor sold the ladder to...

On January 1, 2011, Davis and Hershey owned Blackacre as tenants in common. On July 1, 2011, Davis made a written contract to sell Blackacre to Grigg for $25,000. Pursuant to this contract, Grigg...

One year ago, Jasmin and Derek opened investment accounts with a discount broker. In their C$ account, they purchased 300 Bank of Montreal (BMO) shares at C$54.20 per share and six Government of...

Calculate the missing value.

A provincial government allocates 29% of its budget to education, 31% to health care, and 21% to social services. If the dollar amount budgeted for education is $13.7 billion, how much is budgeted...