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Write a recursive function that calculates if two binary trees are similar?

ahrayia [7]

Answer:

bool identicaltrees(Node* root1,Node* root2)//function of type boolean true if idenctical false if not.

{

if(root1==NULL&&root2==NULL)//both trees are null means identical.

return true;

if(roo1 && root2)

{

if(root1->data==root2->data)//condition for recursive call..

{

return (identicaltrees(root1->left,root2->right)&&identicaltrees(root1->right&&root2->right);

}

else

return false;

}

Explanation:

In this function it of type boolean returns true if both the trees are identical return false if not.First we are checking root node of both the trees if both are null then they are identical returning true.

If both root nodes are not null then checking their data.If data is same then recursively traversing on both trees and checking both trees.

else returning false.

5 0

3 years ago

Transparency is an important concept in policies related to the handling and use of customer data. Organizations should be trans

Tpy6a [65]

Answer: (C) Response controls

Explanation:

According to the given question, the response control is not the necessary element while handling the users or customer data as compared to all the other given options that is individual participation, data minimization and the purpose specification.

The response control is basically used for exchange the data or any information in an organization but the main disadvantage is that they share all the response and information as they not wait for the request from the users.
The all the three other given options expect response control are the important element for handling the customer data as it helps in maintaining the Personal information.

Therefore, Option (C) is correct answer.

6 0

3 years ago

What type of virus was the "lloveyou" virus?<br> 1.Trojan<br> 2.Worm

Paul [167]

Answer:

2. Worm

Explanation:

8 0

3 years ago

Read 2 more answers

Write a function called st_dev. St_dev should have one #parameter, a filename. The file will contain one integer on #each line.

kodGreya [7K]

Answer:

import statistics
def st_dev(file_name):
with open(file_name) as file:
data = file.readlines()
numList = []
for x in data:
numList.append(int(x))
return statistics.pstdev(numList)
print(st_dev("text1.txt"))

Explanation:

The solution code is written using Python.

To ease the calculation task, we can import Python statistics module to use the pstdev method to calculate the population standard deviation of a list of numbers (Line 1).

Next, create a st_dev function that take single argument file_name (Line 3). In the function, it will open the input file and read the data line by line (Line 4-5). Create a for loop to traverse through each line of the data which is an integer and append it to numList (Line 7-8). We can pass the numList to pstdev method (Line 10) and return the resulting standard deviation value as output.

We test the function by passing a file which hold a list of integer values in each line (Line 12).

8

9

12

11

21

15

16

10

7

13

And the output we shall get is 4.019950248448356

6 0

3 years ago

Classify each of the following acts as a violation of confidentiality, of data integrity, source integrity, or availability, or

AlexFokin [52]

Answer:

A) Violation of Confidentiality and Source Integrity:

Passwords are very confidential information and are usually protected by both the owner and the ower of the system (which in this case is Yahoo). To obtain the passwords, the hacker had to illegally gain access to the source of the data which is on Yahoo servers. Hence a breach of confidentiality and lack of adequate integrity on the part of Yahoo.

B) Source Integrity: Anthony accidentally cuts the electricity from the server room. Why would he be able to do that? how did he gain access into the server room? This speaks to source integrity. People should not be able to access the server room except they are authorised.

C) Source Integrity and Confidentiality: NSA finds an efficient method to break AES. AES refers to the Advanced Encryption Standard. AES is a symmetric encryption technology known as a block cipher.

It is used by the United States Government for the classification of information. Their ability to break this code speaks to Violation of Source Integrity. In this case, they haven't exactly hacked any document. However, any document that was encrypted using this technology is already compromised at the source.

D) Anna registers the domain name, "JohnSmith" and refuses to let John Smith buy or use the domain name: Violation of Availability.

It is assumed here that John Smith was the original owner of the domain but it was highjacked at expiration and registered by Anna. This kind of breach is called Violation of Availability of the domain name.

E) Some malware encrypts the victim’s hard drive with a secret key and a criminal asks for a ransom to decrypt.

This move is called the Ransomeware attack. The Integrity of the source of information (which is the hard drive) is already compromised. This is a combination of Source Integrity or availability and confidentiality violation.

F) The wiretapping of a cell phone is a breach of confidentiality and data integrity.

G) when there is a vulnerability in a system or software that is unknown to those who should be interested, it is called a Zero-Day vulnerability. Where there is a Zero-Day vulnerability there could be a violation of confidentiality, data integrity, source data and or it's availability.

Cheers!

4 0

3 years ago