Suppose that in a 00-11 knapsack problem, the order of the items when sorted by increasing weight is the same as their order when sorted by decreasing value. Give an efficient algorithm to find an optimal solution to this variant of the knapsack problem, and argue that your algorithm is correct.

Answers

Answer 1

Answer:

Following are the response to the given question:

Explanation:

The glamorous objective is to examine the items (as being the most valuable and "cheapest" items are chosen) while no item is selectable - in other words, the loading can be reached.

Assume that such a strategy also isn't optimum, this is that there is the set of items not including one of the selfish strategy items (say, i-th item), but instead a heavy, less valuable item j, with j > i and is optimal.

As [tex]W_i < w_j[/tex], the i-th item may be substituted by the j-th item, as well as the overall load is still sustainable. Moreover, because [tex]v_i>v_j[/tex] and this strategy is better, our total profit has dropped. Contradiction.


Related Questions

what are the different steps while solving a problem using computer? explain​

Answers

Explanation:

The following six steps must be followed to solve a problem using computer.

Problem Analysis.

Program Design - Algorithm, Flowchart and Pseudocode.

Coding.

Compilation and Execution.

Debugging and Testing.

Program Documentation.

The following method is intended to return true if and only if the parameter val is a multiple of 4 but is not a multiple of 100 unless it is also a multiple of 400. The method does not always work correctly public boolean isLeapYear(int val) if ((val 4) == 0) return true; else return (val & 400) == 0; Which of the following method calls will return an incorrect response?
A .isLeapYear (1900)
B. isLeapYear (1984)
C. isLeapYear (2000)
D. isLeapYear (2001)
E. isLeapYear (2010)

Answers

Answer:

.isLeapYear (1900) will return an incorrect response

Explanation:

Given

The above method

Required

Which method call will give an incorrect response

(a) will return an incorrect response because 1900 is not a leap year.

When a year is divisible by 4, there are further checks to do before such year can be confirmed to be a leap year or not.

Since the method only checks for divisibility of 4, then it will return an incorrect response for years (e.g. 1900) that will pass the first check but will eventually fail further checks.

Hence, (a) answers the question;

Which XXX declares a student's name. public class Student { XXX private double myGPA; private int myID; public int getID() { return myID; } } Group of answer choices String myName; public String myName; private myName; private String myName;

Answers

Question:

Which XXX declares a student's name.

public class Student {

   XXX

   private double myGPA;  

   private int myID;

   public int getID() {

        return myID;

   }

}

Group of answer choices

a. String myName;

b. public String myName;

c. private myName;

d. private String myName;

Answer:

private String myName;

Explanation:

To declare a student's name, the following should be noted.

i. The name of the student is of type String

ii. Since all of the instance variables (myGPA and myID) have a private access modifier, then myName (which is the variable name used to declare the student's name) should be no exception. In other words, the student's name should also have a private access.

Therefore, XXX which declares a student's name should be written as

private String myName;

Option (a) would have been a correct option if it had the private keyword

Option (b) is not the correct option because it has a public access rather than a private access.

Option (c) is not a valid syntax since, although it has a private access, the data type of the variable myName is not specified.

Option (d) is the correct option.

LAB: Warm up: Drawing a right triangle This program will output a right triangle based on user specified height triangle_height and symbol triangle_char. (1) The given program outputs a fixed-height triangle using a character. Modify the given program to output a right triangle that instead uses the user-specified triangle_char character. (1 pt) (2) Modify the program to use a loop to output a right triangle of height triangle_height. The first line will have one user-specified character, such as % or* Each subsequent line will have one additional user-specified character until the number in the triangle's base reaches triangle_height. Output a space after each user-specified character, including a line's last user-specified character. (2 pts) Example output for triangle_char = % and triangle_height = 5: Enter a character: Enter triangle height: 5 273334.1408726 LAB ACTIVITY 16.6.1: LAB: Warm up: Drawing a right triangle 0/3 main.py Load default template... 1 triangle_char - input('Enter a character:\n') 2 triangle_height = int(input('Enter triangle height:\n')) 3 print('') 4 5 print ('*') 6 print ("**') 7 print ("***') 8

Answers

Answer:

The modified program in Python is as follows:

triangle_char = input('Enter a character:\n')

triangle_height = int(input('Enter triangle height:\n'))  

for i in range(triangle_height):

   print(triangle_char * (i+1))

Explanation:

This gets the character from the user

triangle_char = input('Enter a character:\n')

This gets the height of the triangle from the user

triangle_height = int(input('Enter triangle height:\n'))  

This iterates through the height

for i in range(triangle_height):

This prints extra characters up to the height of the triangle

   print(triangle_char * (i+1))

Here's the modified program that incorporates the requested changes:

python

Copy code

triangle_char = input('Enter a character:\n')

triangle_height = int(input('Enter triangle height:\n'))

print('')

for i in range(1, triangle_height + 1):

   line = triangle_char * i + ' ' * (triangle_height - i)

   print(line)

This program uses a loop to iterate from 1 to triangle_height. In each iteration, it creates a line by concatenating triangle_char repeated i times with spaces (' ') repeated (triangle_height - i) times. The resulting line is then printed.

For example, if the user enters % as the character and 5 as the height, the output will be to make sure to maintain the indentation properly in your code for it to work correctly.

Learn more about python on:

https://brainly.com/question/30391554

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(CO 4 and 5) Create a program that will read in a list of test scores from the user and add them to a list. Ask the user in between each score if they want to continue (y/n). Display all of the scores entered and the total score at the end. Using the code below, put the code in the proper order Sample output: Welcome to the Test Score Program Add score: 88.45 Do you want to continue

Answers

Answer and Explanation:

Using Javascript:

function AddScores(){

Window.alert("Welcome to the Test Score Program");

var ScoreList= new Array();

ScoreList.push(Prompt("Add Score"));

var WhatNext= Confirm("do you want to continue?");

If(WhatNext===true) {

do{

ScoreList.push(Prompt("Add Score"));

}

While(

Confirm("do you want to continue?")===true;);

}

Alert(ScoreList);

Alert(ScoreList.reduce(function(a,b){return a +b};,0);)

}

AddScores();

From the above code in javascript programming language, we have created a list ScoreList and added elements to it using push method of the array object and a do...while loop that checks the condition and then adds the user's input to the array. We then alerted the array to the screen and then summed up the array elements and also alerted to the screen.

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LAB: Warm up: Drawing a right triangle This program will output a right triangle based on user specified height triangle_height and symbol triangle_char. (1) The given program outputs a fixed-height triangle using a character. Modify the given program to output a right triangle that instead uses the user-specified triangle_char character. (1 pt) (2) Modify the program to use a loop to output a right triangle of height triangle_height. The first line will have one user-specified character, such as % or* Each subsequent line will have one additional user-specified character until the number in the triangle's base reaches triangle_height. Output a space after each user-specified character, including a line's last user-specified character. (2 pts) Example output for triangle_char = % and triangle_height = 5: Enter a character: Enter triangle height: 5 273334.1408726 LAB ACTIVITY 16.6.1: LAB: Warm up: Drawing a right triangle 0/3 main.py Load default template... 1 triangle_char - input('Enter a character:\n') 2 triangle_height = int(input('Enter triangle height:\n')) 3 print('') 4 5 print ('*') 6 print ("**') 7 print ("***') 8 The product of 4 and the depth of the pool Refer to the chart below.AmendmentEventA.First AmendmentA student applies for admission to a university and isprotected from racial discrimination.B.Fourth AmendmentThe FBI secures a warrant before entering a suspect's hometo search for evidence of a crime.C.Sixth AmendmentTo prevent self-incrimination, a defendant chooses not toanswer a prosecutor's questions.D.Ninth AmendmentA group of peaceful protesters assemble outside of a federalbuilding.Which of the following rows accurately matches the event with the amendment that addresses it? 00C Consider the graph of the function f(x)=2x.Which statement describes a key feature offunction g if g(x) = 2f(x)? Answers:A. y-intercept at (0,2)B. y-intercept at (2,0)C. horizontal asymptote of y = -2D. horizontal asymptote of y = 2 what is a kite? what are its properties? what is its use in our daily life? Write the equation of the line in slope-intercept form Read the following lines from The Early History of the Airplane."It was not till several months had passed, and every phase of the problem had been thrashed over and over, that the various reactions began to untangle themselves."What words indicate a tone of frustration?several months, problem, thrashedthrashed, untangleevery phase, thrashed, reactionsseveral months, every phase A + B + C = 4 step by step please Drag the numbers to label the points plotted on the number line. why would a culture find the sociopathic doctor so fascinating? According to the graphic above, which form of media do people use most to get their news from? pls help me i have to have assignments by 11:00pm so pls help me Need help with this :( in the mid-1800s different regions have different needs and interests match each region to the correct description trnh by c ch hp th v chuyn ha lipid t ng tiu ha ngi? the presence of ____ in Andes mountains shows that mountains must have risen above the ocean.1) Animals2) Shells3) Plants 4) None of the above Votre animal est malade, vous l`emmenez chez le vtrinaire .Ecrivez un dialogue entre vous et le vtrinaire.answer fast plzzzzzz In the presence of excess iodide ions, the iodine formed by reaction of iodide with NBS will react further to form triiodide ions. What does the triiodide combine with to form the blue color of the endpoint please help picture included Match the verbal expression (term) with its algebraic expression (definition). Match Term Definition Some number A) a = 2 increased by two A variable decreased B) b + 2 by two Product of an C) y2 unknown value and two D) X - 2 Quotient of some number and two An unknown value E) 22 squared math pls pls help help no trolls i really need this grade