RecursionexerciseCOP 3502; Summer2021We have gone through many examples in the class and those examples are available in the slides and uploaded codes. Try to test those codes and modify as you wish for getting more clarification.In additiontry the following:---------------------------------------------------------------------------------------------------------------------------------------1.What would be the output of the following recursive function if we call rec2(5)

Answer:

In the early 1900s, military moved their resources to distant locations with the help of trains, ships, and, to a lesser extent, horse-drawn wagons. This was so because at that time airplanes did not yet exist, capable of transporting inputs to any part of the world in a very short period of time. Therefore, inputs and resources were brought by sea and, if impossible, through land, using railways or highways.

Answer:

Explanation:

The following Javascript code is added in the Javascript section where it says "Your solution goes here" and counts the current number of characters in the text within the textArea tag. A preview can be seen in the attached image below. The code grabs the pre-created variable textareaElement and attached the onkeypress event to it. Once a key is pressed it saves the number of characters in a variable and then returns it to the user.

var textareaElement = document.getElementById("userName");

function textChanged(event) {

   document.getElementById("stringLength").innerHTML = event.target.value.length;

}

// Your solution goes here

textareaElement.onkeypress = function() {

   let numOfCharacters = textareaElement.value.length;

   return numOfCharacters;

};

Answer:

hope this will help you more

Hey ! there

Answer:

Explanation:

In this question we are given two fraction that are -8/3 and 7/5. And we have asked to add them .

Solution : -

[tex]\quad \: \dashrightarrow \qquad \: \dfrac{ - 8}{3} + \dfrac{7}{5} [/tex]

Step 1 : Taking L.C.M of 3 and 5 , We get denominator 15 :

[tex]\quad \: \dashrightarrow \qquad \: \dfrac{ - 8(5) + 7(3)}{15} [/tex]

Step 2 : Multiplying -8 with 5 and 7 with 3 :

[tex]\quad \: \dashrightarrow \qquad \: \dfrac{ - 40 + 21}{15} [/tex]

Step 3 : Solving -40 and 21 :

[tex]\quad \: \dashrightarrow \qquad \: \red{\underline{ \boxed{ \frak{\dfrac{ - 19}{15} }}}} \quad \bigstar[/tex]

Answer:

Denial of service attack.

Explanation:

In Cybersecurity, vulnerability can be defined as any weakness, flaw or defect found in a software application or network and are exploitable by an attacker or hacker to gain an unauthorized access or privileges to sensitive data in a computer system.

This ultimately implies that, vulnerability in a network avail attackers or any threat agent the opportunity to leverage on the flaws, errors, weaknesses or defects found in order to compromise the security of the network.

Data theft can be defined as a cyber attack which typically involves an unauthorized access to a user's data with the sole intention to use for fraudulent purposes or illegal operations. There are several methods used by cyber criminals or hackers to obtain user data and these includes DDOS attack, SQL injection, man in the middle, phishing, sniffing, DOS attack, etc.

A denial of service (DOS) attack is a form of cyber attack that involves either the exploitation of a software flaw or overwhelmingly floods a computer system in a network with traffic in order to prevent authorized users from performing legitimate activities or transactions.

Some of the ways to prevent vulnerability or cyber attacks in a network are;

1. Ensure you use a very strong password with complexity through the use of alphanumerics.

2. You should use a two-way authentication service.

3. You should use encrypting software applications or services.

Answer:

MODEM

Explanation:

Answer:

machine learning is the ability for computers to develop new skills and algorithms without specific instructions to do so.

Answer:

Explanation:

Freeware and shareware programs are softwares which are either free of charge or consist of a free version for a certain trial period. These programs pose a threat of habouring malware or viruses which could damage one's computer and important files and programs. Therefore, it is imperative that carefulness is maintained when trying to get these softwares.

Some of the necessary safety conditions that should be taken include;

1) Appropriate research about the software including taking more about the vendors and reviews.

2.) Once, a healthy review has been identified ; the download can begin with the Downloader ensuring that the download is from the recommended site.

3) Prior to installation the software should be scanned with an active anti-virus program to determine if there is possibility that a virus has creeped in.

4.) Some softwares may require that computer anti-virus be turned off during installation, this is not always a good idea as this act leaves the system vulnerable a d badly exposed.

Answer:

Explanation:

Operation Address Hit? Read Value

Read 0x834 No Unknown

Write 0x836 Yes (not applicable)

Read 0xFFD Yes CO

Answer:

Explanation:

so this is what "format" is about,   it's saying what do the ones and zeros represent.   b/c the bits can represent lots of different things ,  like letters with ascii code ,   and that's got several types.  some are 8 bits,  some are 16 bits,  the questions  you've shown are in groups of 5 which is really not a "thing" in binary,  it's always by twos,   without some type of  "frame work"  around the bits, we won't know what they represent,  if that is helping?   the important part is what is the "frame work"   that these bits are in.

all of your questions seem to have some  "art"  thing going on,  they make some kinda of binary artwork,  for what they are saying, that's not what's important.  Other than if they form  palindromes,   maybe that's what the questions are really about, how these do from palindromes, that is, they read the same backwards as forwards... I know.. why would anyone read backwards.. but a computer can do that pretty quickly,  sooo sometimes to check,  it will read  forwards and backwards.. but when there is a palindrome,  the computer is "confused"  

this is also a big big part of  "typing"  not like on a keyboard but when you program, and you say that  your variables are of a certain type,  like a char, or a string, or a double, you are specifying how many bits will be used to represent your data.  so then when you put the ones and zeros into the memory ,  ( think RAM)  then it's stored in groups of what ever size you've determined.    hmmmm   does this help?

Answer:

line of code :

newString=myString+myString.charAt(0)+myString.charAt(myString.length()-1);

Explanation:

In Java, the + is used for concatenation

method

charAt() will return the character from the given index from string

myString.charAt(0) will return E

myString.charAt(myString.length()-1)

Answer:

Following are the solution to the given question:

import java.util.Scanner;//import package

public class AscendingAndDescending//defining a class AscendingAndDescending  

{

   public static void main(String[] args) //main method

   {

       int n1,n2,n3,min,max,m;

       Scanner in = new Scanner(System.in);//creating Scanner class object

       System.out.print("Enter an integer: ");//print message

       n1 = in.nextInt();//input value

       System.out.print("And another: ");//print message

       n2 = in.nextInt();//input value

       System.out.print("And just one more: ");//print message

       n3 = in.nextInt();//input value

       min = n1; //use min variable that holds value

       max = n1; //use mix variable that holds value

       if (n2 > max) max = n2;//use if to compare value and hols value in max variable

       if (n3 > max) max = n3;//use if to compare value and hols value in max variable

       if (n2 < min) min = n2;//use if to compare value and hols value in min variable

       if (n3 < min) min = n3;//use if to compare value and hols value in min variable

       m = (n1 + n2 + n3) - (min + max);//defining m variable that arrange value

       System.out.println("Ascending: " + min + " " + m + " " + max);//print Ascending order value

       System.out.println("Descending: " + max + " " + m + " " + min);//print Descending order value

   }

}

Output:

Enter an integer: 8

And another: 9

And just one more: 7

Ascending: 7 8 9

Descending: 9 8 7

Explanation:

In this program inside the main method three integer variable "n1,n2, and n3" is declared that inputs value from the user end and also defines three variable "min, max, and m" that uses the conditional statement that checks inputs value and assigns value according to the ascending and descending order and prints its values.

Answer:

a. True

Explanation:

Data visualization are defined as the representation of the data and information in graphical way. The data visualization tool uses charts, diagrams, graphs, maps, etc. to represent and visualized the information and understand the patter or trend in the data.

It is an effective way to interact with the user and works likes a form of a visual art.

Thus interactivity and data representations are the two important aspect of the data visualization.

Hence, the answer is true.

Answer:

Explanation:

import java.util.*;

public class BalancedBrackets {

// function to check if brackets are balanced

static boolean isBalanced(String expr)

{

Stack<Character> stack = new Stack<Character>();

for (int i = 0; i < expr.length(); i++)

{

char x = expr.charAt(i);

if (x == '(' || x == '[' || x == '{')

{

// Push the element in the stack

stack.push(x);

continue;

}

if (stack.isEmpty())

return false;

char check;

switch (x) {

case ')':

check = stack.pop();

if (check == '{' || check == '[')

return false;

break;

case '}':

check = stack.pop();

if (check == '(' || check == '[')

return false;

break;

case ']':

check = stack.pop();

if (check == '(' || check == '{')

return false;

break;

}

}

// Check Empty Stack

return (stack.isEmpty());

}

public static void main(String[] args)

{

Scanner scan = new Scanner(System.in);

System.out.println("\nEnter the expression to check is balanced or not !");

String expr = scan.nextLine();

boolean output;

output = isBalanced(expr);

System.out.println(output);

if (output)

System.out.println("Balanced ");

else

System.out.println("Not Balanced ");

scan.close();

}

}

Answer:

The function in Python is as follows:

def sumDig(n):

if n == 1:

 return 11

else:

 return n*11 + sumDig(n - 1)

Explanation:

This defines the function

def sumDig(n):

This represents the base case (where n = 1)

if n == 1:

The function returns 11, when it gets to the base case

 return 11

For every other value of n (n > 1)

else:

This calculates the required sum recursively

 return n*11 + sumDig(n - 1)

Answer:

Based on the requirements indicated in the question above, the best Local Area Network (LAN) operating system that can be used is

Windows 7 , 8.1 or Windows 10. This is because they all are configured to handle extensive LAN activity and can connect over 200 users.

Explanation:  

Generally speaking, Windows 10 packs more improvement over the previous windows.

Cheers

Answer:

A.

the final keyword is used to denote constants. It can be used with variables, methods, and classes. Once any entity (variable, method or class) is declared final , it can be assigned only once.

B.

Static variables are declared in the same place as instance variables, but with the keyword 'static' before the data type. While instance variables hold values that are associated with an individual object, static variables' values are associated with the class as a whole.

Answer:

You typically create a database during Oracle Database software installation. However, you can also create a database after installation.

Reasons to create a database after installation are as follows:

Answer:

Please the code snippet below, the code was writen in Kotlin Language

Explanation:

const val inches:Int= 12 .   //This is the const value

fun main(args: Array<String>) {

 //this will ask the user for input

   print("Enter a number")            

  //this will do the conversion

var valueInFeet= Integer.valueOf(readLine())*inches

   print("The value in feet is $valueInFeet feet(s)")  

   }

Answer:

B. Hardware and software applications on either end could not talk to one another.

Explanation:

The answer to this question is that making connection to the internet used to be very slow, it's operation was difficult and so was its maintenance. Therefore they could be said to be unreliable at the time making electronic information sharing difficult as well as challenging. From this explanation the right answer to this question is answer option b.

Thank you.

Answer:

kdkskskiisidiodoosooddodod

Base to be converted to was not included but we would assume conversion to base 10(decimal)

Answer and Explanation:

The 3DF in base 16 is a hex number so we need to convert to its equivalent binary/base 2 form:

We therefore each digit of given hex number 3DF in base 16 to equivalent binary, 4 digits each.

3 = 0011

D = 1101

F = 1111

We then arrange the binary numbers in order

3DF base 16 = 1111011111 in base 2

We then convert to base 10 =

= 1x2^9+1x2^8+1x2^7+1x2^6+0x2^5+1x2^4+1x2^3+1x2^2+1×2^1+1×2^0

= 991 in base 10

I understand you want a function that swaps the first and last element of an array so that the first element takes the last one's value and vice versa.

Answer and Explanation:

Using Javascript programming language:

function swapArrayEnds(sortArray){

var newArray= sortArray.values();

var firstElement=newArray[0];

newArray[0]=newArray[newArray.length-1];

newArray[newArray.length-1]=firstElement;

return newArray;

}

var exampleArray=[2, 5, 6, 8];

swapArrayEnds(exampleArray);

In the function above we defined the swapArray function by passing an array parameter that is sorted by swapping its first and last element. We first get the elements of the arrayvusing the array values method. We then store the value of the first element in the variable firstElement so that we are able to retain the value and then switch the values of the first element before using the firstElement to switch value of the last element. We then return newArray and call the function.

Answer:

Backspace.

Explanation:

Cancel Button you should press to leave the cell as it originally was. Cancel Button you should press to leave the cell as it originally was. This answer has been confirmed as correct and helpful.

Backspace is press to leave the cell as it originally was.

The Backspace key is situated in the top-right corner of the character keys part of the keyboard.

Backspace is replaced by a "delete" key on Apple computers, although it serves the same purpose.

There are no "backspace" keys on an Android or Apple iPhone smartphone or iPad tablet, but there is a key that serves the same purpose. Look for a key that resembles an arrow with a "X" or an arrow pointing left, as illustrated in the image.

Therefore, Backspace is press to leave the cell as it originally was.

To learn more about backspace, refer to the link:

https://brainly.com/question/29790869

#SPJ2

Answer:

Follow the best strategies for personalized LinkedIn outreach through 2021.

Answer:

ensure integrity. primary key is unique key..foreign key is to connect 2 table.normalization to ensure you keep track on what you should do to create db..

Answer:

This can be done by a greedy solution. The algorithm does the following:  

Put song 1 on CD1.

For song 1, if there's space left on the present CD, then put the song on the present CD. If not, use a replacement CD.

If there are not any CDs left, output "no solution".

Explanation:  

The main thing is prove the correctness, do that by the "greedy stays ahead argument". For the primary song, the greedy solution is perfect trivially.  

Now, let the optimal solution match the greedy solution upto song i. Then, if the present CD has space and optimal solution puts song (i+1) on an equivalent CD, then the greedy and optimal match, hence greedy is not any worse than the optimal.Else, optimal puts song (i + 1) on subsequent CD. Consider an answer during which only song (i + 1) is moved to the present CD and zip else is modified. Clearly this is often another valid solution and no worse than the optimal, hence greedy is not any worse than the optimal solution during this case either. This proves the correctness of the algorithm. As for every song, there are constantly many operations to try to do, the complexity is O(n).

Answer:

When implementing a 1:1 relationship, the foreign key should be placed on the optional side if one side is mandatory and one side is optional.  

When this is implemented, the foreign key should be made mandatory.

Explanation:

A foreign key (FK) is a primary key (PK) in relational databases.  It is used to establish a relationship with a table that has the same attribute with another table in the database.  A mandatory relationship exists when the foreign key depends on the parent (primary key) and cannot exist without the parent.  A one-to-one relationship exists when one row in a data table may be linked with only one row in another data table.

Answer:

Explanation:

class Solution {

   public int search(int[] nums, int target) {

       int n = nums.length;

       int low = 0 , high = n - 1;

       While(low < high){//Set virtual node

           int mid = (low + high) / 2;

           if(nums[mid] > nums[high]){

               low = mid + 1;

           }else{

               high = mid;

           }

       }

       int rot = low;

       low = 0;

       high = n - 1;

       while(low <= high){

           int mid = (low + high) / 2;

                        Int real = (mid + rot) % n;//The virtual node is mapped to the real node.

           if(nums[real] == target){

               return real;

           }else if(nums[real] < target){

               low = mid + 1;

           }else{

               high = mid - 1;

           }

       }

       return -1;

   }

}

Answer:

The answer is "Developing the custom control for the user interface"

Explanation:

The major difference between customized control & user control would be that it inherit throughout the inheritance tree at different levels. Usually, a custom power comes from the system. Windows. UserControl is a system inheritance.

Using accuracy up is the major reason for designing a custom UI control. Developers must know how to use the API alone without reading the code for your component. All public methods and features of a custom control will be included in your API.