You are given an array of integers. Your task is to create pairs of them, such that every created pair has the same sum. This sum is not specified, but the number of created pairs should be the maximum possible. Each array element may belong to one pair only.
Write a function
class Solution public int
solution (int[] A); }
that, given an array A consisting of N integers, returns the maximum possible number of pairs with the same sum.
Examples:
1. Given A = [1, 9, 8, 100, 2], the function should return 2. The pairs are (A[0]. A[1]) and (A[2], A[4]); the sum of each pair is 10.
2. Given A = [2, 2, 2, 3], the function should return 1. Although, for instance, A[0]+A[1] = A[0]+A[2], the pairs (A[0], A[1]) and (A[0], A[2]) cannot exist at the same time, because they both contain a common element, A[0].
how to count binary ? Help Better understand this question
Explanation:
For each row in the picture, you have to switch on some of the bits to create the number on the left.
Each bit has a value, a "weight" so to speak. By switching on the bit, you add that weight to the sum.
These "weights" are shown at the top row.
So to create 4, it's easy, you just switch on the '4' bit.
Same for 128, only one bit has to be switched on.
40 is a bit more involved, now you have to switch on 32 and 8, since 32+8 is 40.
For every number, there is exactly one combination of switched on bits to create that number. In the case of 40, the binary representation is:
00101000.
Consider the following declaration:
String s = "cat";
Which of the following statements assigns the number of characters in s to k?
A. int k = s.length;
B. int k = s.length();
C. int k = s.size;
D. int k = s.size();
Consider the following declarations:
String s1 = "apple";
String s2 = "apple";
What is the result of s1.compareTo(s2)?
A. true
B. false
C. 0
D. 1
Consider the following declarations:
String s1 = "apple";
String s2 = "APPLE";
Which of the following expressions is true?
A. s1.equals(s2) && s1.equalsIgnoreCase(s2)
B. !s1.equals(s2) && s1.equalsIgnoreCase(s2)
C. s1.equals(s2) && !s1.equalsIgnoreCase(s2)
D. !s1.equals(s2) && !s1.equalsIgnoreCase(s2)
Answer:
B, C, B
Explanation:
According to my understanding of these questions, these are in Java.
For the first one, there is a built in function called .length() for a string, so it's answer B.
For the second one, this should come out as C, 0 since compareTo compares the ascii values of the characters.
The third one's answer should be B. s1.equals(s2) for characters that are caps and not caps comes out with false, so ! would negate it. s1.equalsIgnoreCase(s2) would come out as true, ignoring the cases of APPLE.
A hybrid data mart ________ data from a data warehouse as well as other data collection systems. It incorporates a top-down approach, end-user inputs, and enterprise-level integration. g
Answer:
Hybrid Data Marts
A hybrid data mart allows you to combine input from sources other than a data warehouse. This could be useful for many situations, especially when you need ad hoc integration, such as after a new group or product is added to the organization.
We can use a hybrid data mart to mix data from sources other than a data warehouse, and the further discussion can be defined as follows:
Hybrid Data Marts:It could be useful in a variety of scenarios, particularly when informal integration is required, like when a new group or product is added to the organization.
We can use a hybrid data mart to combine data from various sources other than a data warehouse. It's a structure or access pattern that retrieves client-specific data in data warehouse environments. This data mart is a subset of a data warehouse that is typically focused on a particular business line or functional area.Therefore, the final answer is "separates".
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write a short paragraph (three to four sentences) that explains how it works for computers and internet communications in relation to cybersecurity.
Answer:
Public and private keys form the basis for public key cryptography, also known as asymmetric cryptography. In public key cryptography, every public key corresponds to only one private key. Together, they are used to encrypt and decrypt messages. If you encode a message using a person’s public key, they can decode it using their matching private key.
Explanation:
Change up the wording.
Yvonne is matting a series of photos as an anniversary gift for her parents. She hopes that they will cherish this gift for years to come but is concerned because she can’t afford the really nice mat board. What is Yvonne MOST LIKELY worried about?
A.
that the mat will turn black
B.
that the mat will take over the picture
C.
that the mat will disintegrate
D.
that the mat will discolor and deteriorate
Answer:
That the mat will discolor and deteriorate
Explanation:
D
Yvonne will most likely worry that the mat will discolor and deteriorate. The correct option is D.
What is matting in photos?Matting is a decorative border that surrounds the artwork. It is typically built of mat board, a type of board designed specifically for this purpose. After cutting the mat board to size, one or more holes (entries) are cut in the mat board to act as windows for displaying art.
Matting is the technique of separating an image's foreground and background components. Typically, the photos are of a frame or a video file. It adds a decorative edge to the print and a mechanism for hanging the photo.
Matting involves using a front or window mat to separate the image from the frame's glass and to give an extra border around the photo.
Therefore, the correct option is D. that the mat will discolor and deteriorate.
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Where is the option to set Conditional Formatting rules found?
O Insert tab in the Formatting group
O Page Layout tab in the Styles group
O Home tab in the Styles group
Formulas tab in the Formatting group
Answer:
C
Explanation:
the person above me is correct, you should mark them brainliest
Alexis plans to stop trading once she lose 5% of her account balance, her account balance is $215.00. How much money is she willing to lose ?
Answer:
She's willing to lose $10.75.
Explanation:
$215.00 * .05 = answer
or
$215.00 * .95 = x
$215.00 - x = answer
A company Digicom Parts manufactures 2 types of unique products for laptop and desktop computers. It manufactures 10 types of laptop products and 42 types of desktop products. Each product manufactured by the company has a unique productID from a-z and A-Z. The laptop product have productID (a, i, e, o, u, ALE, O, U) while the rest of the productIDs are assigned to the desktop products. The company manager wishes to find the sales data for the desktop products. Given a list of productIDs of the sales of the last N products, write an algorithm to help the manager find the productIDs of the desktop products.
Algorithms are used as a prototype of an actual program, during project design.
The algorithm the manager can use to find the productID of the desktop products is as follows:
Start
i = 0
if i > N, then Exit:
Input productID:
If productID.upper() == 'A' or 'I' or 'E' or 'O' or 'U':
Process data as desktop products
i++
Go to step 2
Stop
Note that algorithms do not conform to programming syntax.
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Identifies 3 different companies that use Information Systems. Then for each company describe the WHAT the company actually uses, the HOW the company uses it, and the WHY the company needs to implement this system within itself.
The companies that use Information Systems are
Amazon IBMRRE VenturesHow does Ama.zon use information systems?Ama.zon uses information systems in a lot of its business processes as it helps them to have good and improved efficiency in the the area of collection, storage, and analytics of all their customers' information.
Conclusively, IBM uses the information system for:
Keeping of customers information.communicating.Buying and selling etc.Learn more about Information Systems from
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Which of the following is NOT an arithmetic operator?
Considering the available options, the choice that is NOT an arithmetic operator is "]."
What is Arithmetic Operator?Arithmetic Operator is the term used in computer science to describe the mathematical function that takes two operands while making calculations.
Arithmetic Operators are generally used for arithmetic and sequential calculation.
Major Arithmetic Operators + (addition), - (subtraction), * (multiplication), / (division), % (modulo).++ Autoincrement−− AutodecrementHence, in this case, it is concluded that the correct answer is "]."
The available options are:
a.+
b.-
c. *
d. ]
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What was the main limitation of computer networking that the invention of the Robert website of the 1990s
Answer:
The TCP/IP protocol could only be used in universities, governments, and businesses. People around the world could not send data to one another.
13) You notice that the row labels in your spreadsheet are 1, 2, 3, 8, 9.
Row labels 4 through 7 are missing. What could cause this?
Possible reasons for missing out row 4 to 7 are as follows,
Chance of rows from 4 to 7 contain incorrect/ non formatted data.Chance of rows from 4 to 7 are in hidden state.Chance of rows from 4 to 7 are assigned to some other user which does not belongs to your current user.Chance of rows from 4 to 7 were deleted from the sheet.These are all the possible reasons for missing of row 4 to 7.
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You have just purchased a brand new Windows 8 computer. What should you do right away with the Administrator account?
in excel If you have a lengthy text, adding a __________ can change the cell’s format to ________. *
Based on Microsoft Excel analysis, in excel If you have a lengthy text, adding a Wrap Text can change the cell’s format to high height.
What is Microsoft Excel?Microsoft Excel is one of the software applications in Microsoft Office. It has cells of rows and columns in which users can easily put facts and figures to carry out tasks.
The function of Wrap TextWrap Text is applied in Microsoft Excel to show the cell contents on many lines instead of a single long line.
Hence, in this case, it is concluded that the correct answer is "Wrap Text and High Height."
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List the four types of computer cases
Answer:
full-tower, mid-tower, mini-tower, and SFF(Small Factor Form).
I hope it helps.
I have a D in one of my majors, I got a lot of 70s and I'm failing music. im in middle school. Will I be held back? Please answer this
Answer:
probably sorry it will be okay
"""
Multiply.py - This program prints the numbers 0 through 10 along
with these values multiplied by 2 and by 10.
Input: None.
Output: Prints the numbers 0 through 10 along with their values multiplied by
2 and by 10.
"""
head1 = "Number: "
head2 = "Multiplied by 2: "
head3 = "Multiplied by 10: "
NUM_LOOPS = 10 # Constant used to control loop.
print("0 through 10 multiplied by 2 and by 10" + "\n")
# Initialize loop control variable.
# Write your counter controlled while loop here
# Multiply by 10.
# Multiply by 2.
print(head1 + str(numberCounter))
print(head2 + str(byTwo))
print(head3 + str(byTen))
# Next number.
Summary
In this lab, you use a counter-controlled while loop in a Python program. When completed, the program should print the numbers 0 through 10, along with their values multiplied by 2 and by 10. The data file contains the necessary variable declarations and output statements.
Instructions
Make sure the file Multiply.py is selected and opened.
Write a counter-controlled while loop that uses the loop control variable (numberCounter) to take on the values 0 through 10.
In the body of the loop, multiply the value of the loop control variable by 2 and by 10. Remember to change the value of the loop control variable in the body of the loop.
Execute the program by clicking the "Run Code" button at the bottom of the screen.
During boom times, which of the
following is true?
A. less tax revenue is being paid by businesses
B. less tax revenue is being paid by consumers
C. more tax revenue is being collected from businesses
and consumers
D. tax increases are causing unemployment and job
loss
During boom times, the option that was true is that less tax revenue is being paid by businesses.
How does the taxation system can boom a economy?The use of taxation is one that affect incentives, as taxes can influence supply and demand factors.
Note that by lowering marginal tax rates on wages and salaries, can bring about the zeal for people to work more and earn more.
Therefore, During boom times, the option that was true is that less tax revenue is being paid by businesses.
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What is important to know from a software development perspective about this topic and its relationship with traditional operating systems? How does developing the software for each platform differ? How is it similar?
What is important to know from a software development perspective about this topic and its relationship with traditional operating systems? How does ...
Write a description about this picture
Answer:
A cube which has holes in it, represented by circles and it has an oval/sphere on top of the figure
Explanation:
Answer: A Square with circular holes and a tall round circle/torus sticking out of the top circle hole in all there are 6 circular holes 1 square and 1 tall round circle/torus
Explanation:
Im sorry if this isnt what you meant if it isnt i can try again
What is it called when a unique letter is assigned to a shared drive
Answer:
Assigning a drive letter to a network drive is called mapping the drive, or linking the drive, by network nerds.
Explanation:
Filtering is a function of _____.
Write a Boolean expression that tests if the value stored in the variable num1 is equal to the value stored in the variable num2.
Answer:
num1 = int(input("Enter value: "))
num2 = int(input("Enter value: "))
if num1 == num2:
print("Equals.")
else:
print("Unequal.")
Explanation:
The Boolean expression that tests if the value stored in the variable num1 is equal to the value stored in the variable num2 can be found in explanation.
What is boolean expression?A logical statement that could be either true or false is referred to as a Boolean expression.
As long as both parts of the expression have the same basic data type, Boolean expressions can compare data of any type. Data can be tested to see if it is the same as, greater than, or less than other data.
A Boolean expression is a type of expression used in programming languages that produces a Boolean value when evaluated. A Boolean value can only be true or false.
The boolean expression for the given scenario can be:
num1 = int(input("Enter value: "))
num2 = int(input("Enter value: "))
if num1 == num2:
print("Equals.")
else:
print("Unequal.")
Thus, above mentioned is the program for the given code.
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how many MB are there in 1000 KB?
Answer:
1 megabyte
Explanation:
What does it mean "Be Proactive"?
Answer:controlling a situation by making things happen or by preparing for possible future problems
Explanation:
Consider our authentication protocol 4.0, in which Alice authenticates herself to Bob, which we saw works well (i.e., we found no flaws in it.). Now suppose that at the same time that Alice authenticates herself to Bob, Bob must authenticate himself to Alice. Give a scenario by which Trudy, pretending to be Alice, can now authenticate herself to Bob as Alice.
If a client must wait too long for software that works, he might attempt to add requests for more and more features to be added to the program. This is known as ________.
Answer:
scope creep
Explanation:
In the context of the data administration component of a database management system (DBMS), the acronym CRUD stands for _____.
CRUD is an acronym in database management system (DBMS) that stands for Create, Read, Update, and Delete.
CRUD is an acronym in database management system (DBMS) that stands for Create, Read, Update, and Delete. It is the four basic functions of persistent storage.
CRUD operations are foundation operations every database developer and administrator needs to understand.
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write a code for a program in which the parent had to ask from user that how many child user wants to create and then it should fork that many Childs?
Answer:
//same program different code
#include<stdio.h>
#include<unistd.h>
#include<stdlib.h>
int main()
{
int pid;
pid=fork();
if(pid<0)
{
printf("\n Error ");
exit(1);
}
else if(pid==0)
{
printf("\n Hello I am the child process ");
printf("\n My pid is %d ",getpid());
exit(0);
}
else
{
printf("\n Hello I am the parent process ");
printf("\n My actual pid is %d \n ",getpid());
exit(1);
}
}
Explanation:
Following are the program to the given question:
Program Explanation:
Include header file.Defining the main method.Defining an integer variable "n, i", after defining this use "n" to the input value.In the next step, a loop is declared that uses if block that checks fork value equal to 0, in which it calls the sleep method and prints its value.At the last, it calls the wait method.Program:
#include<stdio.h>//header file
#include<sys/types.h>
#include<sys/wait.h>
#include<unistd.h>
int main()//defining the main method
{
int n,i;//defining an integer variable
printf("Enter the number of child to be created:"); //print message
scanf("%d", &n);//input value in n
for(i=0;i<n;i++) // defining a loop that use if block with the frok method to print value
{
if(fork() == 0)//use if that check fork method value equal to 0
{
sleep(3);//calling sleep method
printf("[child] pid %d from [parent] pid %d\n",getpid(),getppid());//print message
}
}
wait(NULL);//calling wait method
return 0;
}
Output:
Please find the attached file.
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