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dsp73
2 years ago
13

Write a program to determine all pairs of positive integers, (a, b), such that a < b < 1000 and [a2 + b2 + 1)/(ab) is an i

nteger.
Computers and Technology
1 answer:
alina1380 [7]2 years ago
5 0

Answer:

1. We must import the packages for the array list

2. We create the array to store the data

3. We make the first for cycle for 1000 values

4. The second for cycle for the variable a

5. We make the operation

6. Cast the result to an Integer and check if they are equivalent

7. We print the result

Explanation:

package javaapplication16;

import java.util.ArrayList;

public static void main(String[] args) {

ArrayList result = new ArrayList();

       for(int b = 0; b < 1000; b++) {

           for(int a = 0; a < b; a++) {

               double calculatedResult = (Math.pow(a, 2) + Math.pow(b, 2) + 1) / (a * b);

               if (calculatedResult == (int)calculatedResult) {

                   result.add("[" + a + "," + b + "]");

               }

           }

       }

       System.out.println("Result: " + result);

}

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Which XXX and YYY correctly output the smallest values? Vector user Vals contains integers (which may be positive or negative).
liubo4ka [24]

Answer:

The answer is "minVal - userVals.at(0); /userVals.at(i) < minVal  "

Explanation:

In the question, it uses minVal instead of XXX to hold the very first arra(userVal) element, and rather than YYY you choose a conditional statement to check which integer is lower than minVal to index of loop increment. It changes the value of the minVal if the condition is valid. It's completely different if we talk about another situation.

3 0
1 year ago
Redo Programming Exercise 16 of Chapter 4 so that all the named constants are defined in a namespace royaltyRates. PLEASE DONT F
Komok [63]

Answer:

Code is given below and output is attached in the diagram:

Explanation:

//Use this header file while using visual studio.

#include "stdafx.h"

//Include the required header files.

#include<iostream>

//Use the standard naming convention.

using namespace std;

//Define a namespace royaltyRates.

namespace royaltyRates

{

    //Declare and initialize required named constants.

    const double PAY_ON_DELIVERY_OF_NOVAL = 5000;

    const double PAY_ON_PUBLISH_OF_NOVAL = 20000;

    const double PER_ON_NET_PRICE_SECOND_OPTION =

    0.125;

    const double PER_ON_NET_PRICE_FIRST_4000 = 0.1;

    const double PER_ON_NET_PRICE_OVER_4000 = 0.14;

};

//Start the execution of main() method.

int main()

{

    //Declare and initialize the required variables

    //which are going to be used to calculate

    //royalities under each option.

    float net_price;

    int num_copies;

    float royaltyUnderOption1, royaltyUnderOption2,

    royaltyUnderOption3;

    royaltyUnderOption1 = royaltyUnderOption2

    = royaltyUnderOption3 = 0;

    //Prompt the user to enter the net price of each

    //novel.

    cout << "Please enter the net price for each ";

    cout << "copy of the novel : ";

    cin >> net_price;

    //Prompt the user to enter the estimated number

    //of copies of the novels to be sold.

    cout << "Please enter the estimated number ";

    cout << "of copies to be sold : ";

    cin >> num_copies;

    //Display the required details and royalty

    //calculated under option 1.

    cout << "\n*** Option 1: ****" << endl;

    cout << "Net price of each novel: $" << net_price;

    cout << endl;

    cout << "Estimated number of copies to be sold ";

    cout << "is: " << num_copies << endl;

    cout << "$";

    cout << royaltyRates::PAY_ON_DELIVERY_OF_NOVAL;

    cout << " is paid to author for the delivery of ";

    cout << "the final manuscript and $";

    cout << royaltyRates::PAY_ON_PUBLISH_OF_NOVAL;

    cout << " is paid for the publication of ";

    cout << "novel." << endl;

    royaltyUnderOption1 =

    royaltyRates::PAY_ON_DELIVERY_OF_NOVAL +

    royaltyRates::PAY_ON_PUBLISH_OF_NOVAL;

    cout << "Total amount of royalty under option 1 ";

    cout << "is $" << royaltyUnderOption1 << endl;

    //Display the required details and royalty

    //calculated under option 2.

    cout << "\n*** Option 2: ****" << endl;

    cout << "Net price of each novel: $";

    cout << net_price << endl;

    cout << "Estimated number of copies to be sold ";

    cout << "is: " << num_copies << endl;

    royaltyUnderOption2 =

   (royaltyRates::PER_ON_NET_PRICE_SECOND_OPTION *

    net_price)* num_copies;

    cout << "Total amount of royalty under option 2 ";

    cout << "is $" << royaltyUnderOption2 << endl;

    //Display the required details and royalty

    //calculated under option 3.

    cout << "\n*** Option 3: ****" << endl;

    cout << "Net price of each novel: $" << net_price;

    cout << endl;

    cout << "Estimated number of copies to be sold ";

    cout << "is: " << num_copies << endl;

    //If the number of copies is greater than 4000.

    if (num_copies > 4000)

    {

         //Total amount of royalty will be 10% of net

         //price of first 4000 copies and 14 % of net

         //price of copies sold over 4000.

         royaltyUnderOption3 =

         (royaltyRates::PER_ON_NET_PRICE_FIRST_4000 *

         net_price) * 4000 +

         (royaltyRates::PER_ON_NET_PRICE_OVER_4000 *

         net_price) * (num_copies - 4000);

    }

    //Otherwise,

    else

    {

         //Total amount of royalty will be 10% of net

         //price of first 4000 copies.

         royaltyUnderOption3 =

         (royaltyRates::PER_ON_NET_PRICE_FIRST_4000 *

         net_price) * num_copies;

    }

    cout << "Total amount of royalty under option 3 ";

    cout << "is $" << royaltyUnderOption3 << endl;

    //If the royalty under option 1 is greater than

    //royalty under option 2 and 3, then option 1 is

    //best option.

    if (royaltyUnderOption1 > royaltyUnderOption2 &&

    royaltyUnderOption1 > royaltyUnderOption3)

    {

         cout << "\nOption 1 is the best option that ";

         cout << "author can choose." << endl;

    }

    //If the royalty under option 2 is greater than

    //royalty under option 1 and 3, then option 2 is

    //best option.

    else if (royaltyUnderOption2 > royaltyUnderOption1

    && royaltyUnderOption2 > royaltyUnderOption3)

    {

         cout << "\nOption 2 is the best option that ";

         cout << "author can choose." << endl;

    }

    //If the royalty under option 3 is greater than

    //royalty under option 1 and 2, then option 3 is

    //best option.

    else

    {

         cout << "\nOption 3 is the best option that ";

         cout << "author can choose." << endl;

    }

    //Use this command while using visual studio.

    system("pause");

    return 0;

}

5 0
2 years ago
zybooks cis 110 challenge activity 9.8.1 Write a program that takes in a positive integer as input, and outputs a string of 1's
irakobra [83]

Answer:

public class IntegerToBinary

{

public static void main(String[] args) {

 integerToBinary(6);

}

public static void integerToBinary(int num){

    while(num > 0){

       System.out.print(num%2);

       num = Math.floorDiv(num, 2);

    }

}

}

Explanation:

*The code is in Java.

Create a function called integerToBinary that takes one parameter, num

Inside the function, create a while loop that iterates while the num is greater than 0. Inside the loop, print the num%2. Then, get the floor division of the num by to and assign it to the num.

Inside the main, call the function with parameter 6.

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Which social network made the mistake of alienating its early adopters by deleting suspicious accounts?​?
mamaluj [8]
<span>Which social network made the mistake of alienating its early adopters by deleting suspicious accounts?
Ryze
Friendster
SixDegrees
Tribe.net
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The Correct answer is </span>Friendster.
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2 years ago
Write a class named GasTank containing: An instance variable named amount of type double, initialized to 0. An instance variable
telo118 [61]

Answer:

The class GasTank is defined below

All the steps are briefed in comments

public class GasTank {

// instance variable initialization

private double amount = 0;

//declaring instance variable capacitance

private double capacity;

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public GasTank(double i)

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}

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public void addGas(double i)

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public void useGas(double i)

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//method isEmpty

public boolean isEmpty()

//Returns true if volume is less than 0.1 else false

{ return amount < 0.1 ? true : false; }

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{ return amount > (capacity-0.1) ? true : false; }

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public double getGasLevel()

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{ return amount; }

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public double fillUp()

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{ double blah = capacity - amount; amount = capacity; return blah; }

}

5 0
2 years ago
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