Check My WorkHere is an algorithm for calling a friend on the telephone:Step Operation1. Dial the phone and wait for either an answer or a busy signal2.If the line is not busy then do Steps 3 and 43.Talk as long as you want4.Hang up the phone, you are done5.Otherwise (the line is busy)6.Wait exactly 1 minute7.Go back to Step 1 and try againDuring execution, this algorithm could get into a situation in which, as in the deadlock problem, no useful work can ever get done. Describe the problem, explain why it occurs, and suggesthow it could be solved.

The problem described in this algorithm is a livelock situation, not a deadlock. In a livelock, the…

Here is an algorithm for calling a friend on the telephone: Step Operation 1. Dial the phone and wait for either an answer or a busy signal If the line is not busy then do Steps 3 and 4 Talk as long as you want Hang up the phone, you are done Otherwise (the line is busy) Wait exactly 1 minute 2. 3. 4. 5. 6. 7. Go back to Step 1 and try again During execution, this algorithm could get into a situation in which, as in the deadlock problem, no useful work can ever get done. Describe the problem, explain why it occurs, and suggest how it could be solved.

Here is an algorithm for calling a friend on the telephone: Step Operation 1. Dial the phone and wait for either an answer or a busy signal If the line is not busy then do Steps 3 and 4 Talk as long as you want Hang up the phone, you are done Otherwise (the line is busy) Wait exactly 1 minute 2. 3. 4. 5. 6. 7. Go back to Step 1 and try again During execution, this algorithm could get into a situation in which, as in the deadlock problem, no useful work can ever get done. Describe the problem, explain why it occurs, and suggest how it could be solved.

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

Algorithm Analysis Start with 102 coins on a table, 98 showing heads and 4 showing tails. There are two ways to change the coins: • flip over any ten coins, or • place n+ 1 additional coins, all showing tails, on the table where n is the number of heads currently showing on the table. For example, you might begin by flipping nine heads and one tail, yielding 90 heads and 12 tails, then add 91 tails, yielding 90 heads and 103 tails. (a) Model this situation as a state machine, carefully defining the set of states, the start state, and the possible state transitions. (b) Optionally, explain how to reach a state with exactly one tail showing. (c) Consider the following derived variables: C ::= the number of coins on the table H ::= the number of heads on the table T::= the number of tails on the table C, ::= parity (C) H2 ::= parity(H) T2 ::= parity(T) Here the parity : Z → {0,1} function is defined as parity(n) = 0 when n is even and 1 otherwise. Which of these variables is strictly…
1. A runner targets herself to improve her time on a certain course by 3 seconds a day. If onday 0 she runs the course in 3 minutes, how fast must she run it on day 14 to stay ontarget?2. A certain computer algorithm executes twice as many operations when it is run with aninput of size k as when it is run with an input of size k − 1 (where k is an integer that isgreater than 1). When the algorithm is run with an input of size 1, it executes sevenoperations. How many operations does it execute when it is run with an input of size 25?
1. The entrance room (or the starting of the maze) is considered as level 1. Now, answer these following questions: (a). Write an algorithm to figure out how many maximum levels the maze can go up to. (b). Figure out the complexity of your algorithm. To create a maze some rooms of a building is connected. Starting room is called Entrance room. From the entrance room other rooms are there connected from it. However, some rooms of that maze- building have connected room from it, and some rooms do not have any connected room. Each of the room can have at most or up to two rooms connected from it. The starting room is the entrance room of the maze or building. Fore example: It can be any one like the followings: Exemple -: Room1 Roono Room Entrance Room Raom Room2 Room? Roo Roomo Here, maxinum level =7 Example -2; Entrace Room D- Room5 Room 2 Room 4 Maxximum level=3
Given a list of scores and a passing score, you are asked to find out the numberof scores which are equal to or higher than the passing score, the lowest score, andthe highest score. For examples, if the list of scores is as follows: 46, 58, 55, 43,89, 93, 77, 82, 99, 64; and if the passing score is 60, then the answers should be 6,43 and 99. Implement the above task using MIPS. Initialize the array of scores inmemory using any integer values between 0 and 100. The passing score should beobtained from user’s input and the answer must be printed out.
What We Do Daily Write an algorithm of the following daily Activities. You may follow the given example method to construct your algorithm. Activity: 1. Planting a seed. Activity: 2. Drink your Coffee Example: EVERYDAY ROUTINE ALGORITHM EXAMPLE: “Wash Your Hands” Step-1:Start Step-2:Open the water tap. Step-3:Put soap on your hands. Step-4:Clean your hands with water. Step-5:Shut down the water tap. Step-6:Dry your hands. Step-7:Stop
Write a program using Python to solve the locker riddle which reads as follows: Imagine 100 lockers numbered 1 to 100 with 100 students lined up in front of those 100lockers:The first student opens every locker.The second student closes every 2nd locker.The 3rd student changes every 3rd locker; if it’s closed, she opens it; if it’s open, she closes it.The 4th student changes every fourth locker (e.g., 4th, 8th, etc.).The 5th student changes every 5th locker (e.g., 5th, 10th, etc.).That same pattern continues for all 100 students. Which lockers are left open after all 100 students have walked the rowof lockers?
Correct answer will be upvoted else downvoted. Computer science. You have two positive integers an and b. You can perform two sorts of tasks: a=⌊ab⌋ (supplant a with the integer part of the division among an and b) b=b+1 (increment b by 1) Track down the base number of activities needed to make a=0. Input The primary line contains a solitary integer t (1≤t≤100) — the number of experiments. The main line of the depiction of each experiment contains two integers a, b (1≤a,b≤109). Output For each experiment, print a solitary integer: the base number of activities needed to make a=0.
Numeric Triangle Pattern Based on the example given on the previous module, create a program that replicated the triangle pattern shown. Try to look at the examples closely and think of an algorithm that replicates the outputs. Let's see if you still look at Triangle problems the same way after this problem. Input: Integer value n. Output: A triangle based on the inputted value of n.
Write an algorithm as following:
Write an algorithm on how to withdraw money from an ATM.
Substitution ciphers are encryption/decryption algorithms that replace one letter or number with another. The first attested use of a substitution cipher in military affairs was by Julius Caesar, described by him in Gallic Wars (cf. Kahn pp83-84). In caesar cipher , you replace each letter by 3rd letter on. If it is out of bound (later than Z), then round to the head (letter A) and continue the shift. For example:meet me after the toga party PHHW PH DIWHU WKH WRJD SDUWB Please write a program in Java to implement the Caesar Cipher: a. Implement the encryption algorithm. Ask the user to input one all lower case normal sentence (called plaintext) using the nextLine method, and then output the encrypted text (called ciphertext). b. Implement the decryption algorithm. Ask the user to input one encrypted sentence (i.e. ciphertext) using the nextLine method, and then output the decrypted text (i.e. plaintext).
Write a detailed algorithm for making a peanut butter and jelly sandwich(or some other everyday activity). You should assume that you are talkingto someone who is conceptually able to do the task, but has never actuallydone it before. For example, you might be telling a young child.