We should resize the array of LinkedLists used for our custom Hash map over time. True O False
Answers
True. It is usually a good idea to resize the array of LinkedLists used for a custom Hash map over time, especially if the number of key-value pairs in the map grows significantly. Resizing the array can help maintain an efficient load factor and reduce the likelihood of collision between keys, which can improve performance and speed up access times.
A hash map is a data structure that maps keys to values by using a hashing function. In a custom hash map implementation, an array of linked lists is often used to store the key-value pairs. Each element in the array corresponds to a bucket and contains a linked list of key-value pairs that have been hashed to that bucket.
When items are added to or removed from the hash map, the number of elements in each bucket can change. If the number of elements in a bucket becomes too large, it can cause performance issues because searching for a key in a large linked list can become slow. On the other hand, if the number of elements in a bucket is too small, a lot of memory can be wasted.
To address these issues, it is common to resize the array of linked lists over time. This involves creating a new, larger array of buckets and transferring the key-value pairs to the appropriate buckets in the new array. The size of the array is usually increased or decreased based on a load factor, which is the ratio of the number of items in the map to the number of buckets. A common load factor for hash maps is 0.75, meaning that the map will be resized when the number of items in the map exceeds 75% of the number of buckets.
By resizing the array of linked lists periodically, a custom hash map can maintain an efficient load factor and reduce the likelihood of collisions between keys, which can improve performance and speed up access times.
Learn more about load factor from
https://brainly.com/question/13194953
#SPJ11
Related Questions
An insurance organization has data on a large number of claims made by policyholders. The management has a process in place to regularly check the data warehouse for fake claims. Which application of data mining does the organization use? A. market segmentation B. customer retention C. fraud detection D. direct marketing
Answers
The application of data mining the organization uses is known as : Fraud detection.
What is data mining?Data mining refers to the process of retrieving data that can be worked on from a large set of data, to solve business problems and reduce risk.
In a data mining process, the aim is to find anomalies and correlation so that outcomes can be predicted using different types of techniques.
Hence, the application of data mining the organization uses is known as fraud detection.
Learn more about data mining here : https://brainly.in/question/2000228
Answer:
C. Fraud Detection
Explanation:
Write a Pseudo-code that will prompt the user for a name. Output the name
Answers
Answer:
start a function
ask the user what his/her name is and save it to a variable
output the variable
close the function
call the function
Explanation:
Pseudocode is actually quite easy. You should look at the lesson as it gives alot on this topic.
Find solutions for your homework
engineering
computer science
computer science questions and answers
this is python and please follow the code i gave to you. please do not change any code just fill the code up. start at ### start your code ### and end by ### end your code ### introduction: get codes from the tree obtain the huffman codes for each character in the leaf nodes of the merged tree. the returned codes are stored in a dict object codes, whose key
Question: This Is Python And Please Follow The Code I Gave To You. Please Do Not Change Any Code Just Fill The Code Up. Start At ### START YOUR CODE ### And End By ### END YOUR CODE ### Introduction: Get Codes From The Tree Obtain The Huffman Codes For Each Character In The Leaf Nodes Of The Merged Tree. The Returned Codes Are Stored In A Dict Object Codes, Whose Key
This is python and please follow the code I gave to you. Please do not change any code just fill the code up. Start at ### START YOUR CODE ### and end by ### END YOUR CODE ###
Introduction: Get codes from the tree
Obtain the Huffman codes for each character in the leaf nodes of the merged tree. The returned codes are stored in a dict object codes, whose key (str) and value (str) are the character and code, respectively.
make_codes_helper() is a recursive function that takes a tree node, codes, and current_code as inputs. current_code is a str object that records the code for the current node (which can be an internal node). The function needs be called on the left child and right child nodes recursively. For the left child call, current_code needs increment by appending a "0", because this is what the left branch means; and append an "1" for the right child call.
CODE:
import heapq
from collections import Counter
def make_codes(tree):
codes = {}
### START YOUR CODE ###
root = None # Get the root node
current_code = None # Initialize the current code
make_codes_helper(None, None, None) # initial call on the root node
### END YOUR CODE ###
return codes
def make_codes_helper(node, codes, current_code):
if(node == None):
### START YOUR CODE ###
pass # What should you return if the node is empty?
### END YOUR CODE ###
if(node.char != None):
### START YOUR CODE ###
pass # For leaf node, copy the current code to the correct position in codes
### END YOUR CODE ###
### START YOUR CODE ###
pass # Make a recursive call to the left child node, with the updated current code
pass # Make a recursive call to the right child node, with the updated current code
### END YOUR CODE ###
def print_codes(codes):
codes_sorted = sorted([(k, v) for k, v in codes.items()], key = lambda x: len(x[1]))
for k, v in codes_sorted:
print(f'"{k}" -> {v}')
Test code:
# Do not change the test code here
sample_text = 'No, it is a word. What matters is the connection the word implies.'
freq = create_frequency_dict(sample_text)
tree = create_tree(freq)
merge_nodes(tree)
codes = make_codes(tree)
print('Example 1:')
print_codes(codes)
print()
freq2 = {'a': 45, 'b': 13, 'c': 12, 'd': 16, 'e': 9, 'f': 5}
tree2 = create_tree(freq2)
merge_nodes(tree2)
code2 = make_codes(tree2)
print('Example 2:')
print_codes(code2)
Expected output
Example 1:
"i" -> 001
"t" -> 010
" " -> 111
"h" -> 0000
"n" -> 0001
"s" -> 0111
"e" -> 1011
"o" -> 1100
"l" -> 01100
"m" -> 01101
"w" -> 10000
"c" -> 10001
"d" -> 10010
"." -> 10100
"r" -> 11010
"a" -> 11011
"N" -> 100110
"," -> 100111
"W" -> 101010
"p" -> 101011
Example 2:
"a" -> 0
"c" -> 100
"b" -> 101
"d" -> 111
"f" -> 1100
"e" -> 1101
Answers
Get codes from the treeObtain the Huffman codes for each character in the leaf nodes of the merged tree.
The returned codes are stored in a dict object codes, whose key (str) and value (str) are the character and code, respectively. make_codes_helper() is a recursive function that takes a tree node, codes, and current_code as inputs. current_code is a str object that records the code for the current node (which can be an internal node). The function needs be called on the left child and right child nodes recursively. For the left child call, current_code needs increment by appending a "0", because this is what the left branch means; and append an "1" for the right child call.CODE:import heapq
from collections import Counter
def make_codes(tree):
codes = {}
### START YOUR CODE ###
root = tree[0] # Get the root node
current_code = '' # Initialize the current code
make_codes_helper(root, codes, current_code) # initial call on the root node
### END YOUR CODE ###
return codes
def make_codes_helper(node, codes, current_code):
if(node == None):
### START YOUR CODE ###
return None # What should you return if the node is empty?
### END YOUR CODE ###
if(node.char != None):
### START YOUR CODE ###
codes[node.char] = current_code # For leaf node, copy the current code to the correct position in codes
### END YOUR CODE ###
### START YOUR CODE ###
make_codes_helper(node.left, codes, current_code+'0') # Make a recursive call to the left child node, with the updated current code
make_codes_helper(node.right, codes, current_code+'1') # Make a recursive call to the right child node, with the updated current code
### END YOUR CODE ###
def print_codes(codes):
codes_sorted = sorted([(k, v) for k, v in codes.items()], key = lambda x: len(x[1]))
for k, v in codes_sorted:
print(f'"{k}" -> {v}')
Test code:
# Do not change the test code here
sample_text = 'No, it is a word. What matters is the connection the word implies.'
freq = create_frequency_dict(sample_text)
tree = create_tree(freq)
merge_nodes(tree)
codes = make_codes(tree)
print('Example 1:')
print_codes(codes)
print()
freq2 = {'a': 45, 'b': 13, 'c': 12, 'd': 16, 'e': 9, 'f': 5}
tree2 = create_tree(freq2)
merge_nodes(tree2)
code2 = make_codes(tree2)
print('Example 2:')
print_codes(code2)
To know more about Huffman codes visit:
https://brainly.com/question/31323524
#SPJ11
The three major characteristics of today's society that are impacted by databases include?
Answers
The three major characteristics of today's society that are impacted by databases include pervasive connectivity, universal mobility, and abundant information.
What is a database?A database is a collection of data and information in an organized form. It stores data in electronic form on electronic devices such as computers. A database controlled a database management system.
The characteristics of a database are unlimited mobility, all-pervasive connectedness, and a wealth of information.
Thus, the three characteristics are pervasive connectivity, universal mobility, and abundant information.
To learn more about the database, refer to the link:
https://brainly.com/question/6447559
#SPJ4
Write a QBASIC program to generate following series.2,4,6,8............10th term.
Answers
Here's a QBASIC program to generate the series 2, 4, 6, 8, ..., up to the 10th term:
FOR i = 1 TO 10
PRINT i * 2;
NEXT i
What is the explanation of the above program?In this program, the FOR loop iterates from 1 to 10, and for each iteration, it multiplies the loop variable i by 2 and prints the result using the PRINT statement.
The semicolon ; after the PRINT statement prevents the cursor from moving to the next line after printing each number, so the output appears on the same line.
Learn more about Q-Basic:
https://brainly.com/question/24124254
#SPJ1
The checksum doesn't compute for a packet sent at the Internet Protocol (IP) level. What will happen to the data?
Answers
Answer:
As the data computed in the form of modules such as 23456, then every sixteen positions will have the same values. Checksum doesn't cover all the corrupted data over the network, so unchecked corruption does not occur due to undetected technique.
Explanation:
The checksum is the error detection technique used to determine the integrity of the data over the network. Protocols such as TCP/IP analyzed that the received data along the network is corrupted. Checksum value based on the data and embed frame. The checksum used a variety of data and performed many types of data verification. Files include the checksum and check the data integrity and verify the data. Both Mac and Window include the programs and generate the checksum. But sometime checksum does not detect the error over the internet and cause unchecked.
Question 9 a lightweight directory access protocol (ldap) entry reads as follows: dn: cn=john smith ,ou=sysadmin,dc=jsmith,dc=com. \n. What is the common name of this entry?.
Answers
The common name of this entry in the case mentioned above is John Smith.
What is a common name for entry?As opposed to its taxonomic or scientific name, a common name is a name by which a person, item, or thing is known to everybody.
A lightweight directory access protocol (LDAP) entry reads the common name of this entry, which in the case having a common name is john.
Therefore, the common name of this item is John Smith in the lightweight directory access protocol mentioned above.
Learn more about entry, here:
https://brainly.com/question/27960956
#SPJ1
____ is the use of computers, video cameras, microphones, and networking technologies to conduct face-to-face meetings over a network.
Answers
The correct answer for the given question is "Videoconferencing."
Videoconferencing is the use of computers, video cameras, microphones, and networking technologies to conduct face-to-face meetings over a network.
It is a great way to connect with people in different locations without the need for travel.
This can save time and money and allow for more frequent and effective communication between people who might not otherwise be able to meet in person.
Videoconferencing has many benefits, including increased productivity, reduced travel costs, and improved communication between team members.
Additionally, it can help reduce the environmental impact of business travel by reducing carbon emissions from transportation.
In conclusion, Videoconferencing is a useful tool that allows people to communicate face-to-face over a network, saving time and money while improving communication and collaboration.
To know more about Videoconferencing, visit:
https://brainly.com/question/10788140
#SPJ11
Describe an example of organisms with different niches in an ecosystem.
Answers
Explanation:
Organism seems to have its own bearable environments for many ecological parameters and blends into an ecological system in its own unique way. A aquatic species' niche, for particular, can be characterized in particular by the salt content or saltiness, pH, and surrounding temperature it can absorb, and also the kinds of food it can consume.
Design a 4-to-16-line decoder with enable using five 2-to-4-line decoder.
Answers
a 4-to-16-line decoder with enable can be constructed by combining five 2-to-4-line decoders. This cascading arrangement allows for the decoding of binary inputs into a corresponding output signal, controlled by the enable line. The circuit diagram illustrates the configuration of this decoder setup.
A 4-to-16-line decoder with enable can be created using five 2-to-4-line decoders. A 2-to-4-line decoder is a combinational circuit that transforms a binary input into a signal on one of four output lines.
The output lines are active when the input line corresponds to the binary code that is equivalent to the output line number. The enable line of the 4-to-16-line decoder is used to control the output signal. When the enable line is high, the output signal is produced, and when it is low, the output signal is not produced.
A 4-to-16-line decoder can be created by taking five 2-to-4-line decoders and cascading them as shown below:
Begin by using four of the 2-to-4-line decoders to create an 8-to-16-line decoder. This is done by cascading the outputs of two 2-to-4-line decoders to create one of the four outputs of the 8-to-16-line decoder.Use the fifth 2-to-4-line decoder to decode the two most significant bits (MSBs) of the binary input to determine which of the four outputs of the 8-to-16-line decoder is active.Finally, use an AND gate to combine the output of the fifth 2-to-4-line decoder with the enable line to control the output signal.The circuit diagram of the 4-to-16-line decoder with enable using five 2-to-4-line decoders is shown below: Figure: 4-to-16-line decoder with enable using five 2-to-4-line decoders
Learn more about line decoder: brainly.com/question/29491706
#SPJ11
What are 3 customizations that can be done using the header/footer section in the customize reports tray?.
Answers
The 3 customizations that can be done using the header/footer section in the customize reports tray are:
One can customize the data, and also sum up that is add or delete columns, and also add or delete information on the header/footer. What is the customizations about?In the case above, a person can also be able to personalize the font and style of the given report that they have.
Note that a lot of columns and filters differ for all kinds of report/group of reports and as such, The 3 customizations that can be done using the header/footer section in the customize reports tray are:
One can customize the data, and also sum up that is add or delete columns, and also add or delete information on the header/footer,Learn more about customizations from
https://brainly.com/question/3520848
#SPJ1
Answer:
change the header or footer alignment, show the logo, show or hide the report basis
Explanation:
so sorry about these "experts" that always spout random information
what happens if you try to open a file for reading that doesn't exist? what happens if you try to open a file for writig that doesnt exist?
Answers
If you try to open a file for reading that doesn't exist, an error will typically occur. If you try to open a file for writing that doesn't exist, a new file will usually be created.
1. When attempting to open a file for reading that doesn't exist, the operating system or programming language's file handling system will raise an error, commonly referred to as a "File Not Found" or "FileNotFoundException" error. This error indicates that the file being accessed cannot be found, preventing reading operations on the nonexistent file.
2. On the other hand, when attempting to open a file for writing that doesn't exist, the file handling system will usually create a new file with the specified name. This allows writing operations to be performed on the newly created file, which starts as an empty file.
3. It's important to note that the exact behavior may vary depending on the programming language, operating system, and specific file handling methods used.
4. When encountering a nonexistent file, it is often recommended to handle the error gracefully by implementing error-checking mechanisms to handle such scenarios and provide appropriate feedback or fallback options to the user.
5. File existence checking, error handling, and file creation procedures are important considerations when working with files to ensure smooth and expected behavior in file handling operations.
Learn more about open a file:
https://brainly.com/question/30270478
#SPJ11
After launching the Mail Merge task pane,
the first step is to:
(A)Identify the data source
(B) Identify the main document
(C) Specify the letter size
(D)Specify the envelope size
Answers
After launching the Mail Merge task pane, the first step is to
B. Identify the main document
What is mail merge?
Mail merge is a method of building letters or emails with a bit of automation.
It requires two components
a template of a letter or an email with specific placeholders And a spreadsheet with a set of dataThese can be names, addresses or any other custom data.Form letters, mailing labels, envelopes, directories, and bulk e-mail and fax distributions. Mail Merge is most commonly used to print or email multiple recipients form lettersCustomize form letters for particular on mass-produce covers and labels.Hence, Identifying the main document is the first stage in Mail Merge Task.
To learn more about Mail Merge from the given link
https://brainly.com/question/21677530
#SPJ13
in a distributed denial-of-service (ddos) attack, the services of a(n) ____ can be halted.
Answers
Make sure your passwords are strong and updated frequently to prevent a distributed denial-of-service (ddos) attack. Services may be stopped using that procedure.
Exactly what does a distributed denial of service (DDoS) assault mean?a cyberattack in which the perpetrator aims to take control of multiple infected computers and use them to overwhelm the target system in order to cause a denial of service.
What distinguishes a DDoS assault from a standard DoS attack?Denial of service (DoS) attacks include using a machine to bombard a server with TCP and UDP packets. When several systems launch DoS attacks on one target system, the attack is known as a DDoS. While all DoS is DDoS, not all DoS is DDoS.
To know more about distributed denial-of-service visit:-
https://brainly.com/question/14161453
#SPJ4
The following is a valid method definition for a method that returns two items: int, int getItems() { ... }
a. true
b. false
Answers
The given statement "int, int getItems() { ... }" is false because a method can only return a single value in Java. Therefore, this statement is not valid because it tries to return two integer values.
In Java, a method can only have one return type, which means that it can only return one value. If you need to return multiple values, you can use an array, a list, or a custom object that encapsulates the data. However, you cannot return multiple values directly from a method as shown in the given statement.
To correct the statement, you can modify the method to return a custom object that contains two integer values, or you can split the method into two separate methods that each return a single integer value.
For more questions like Java click the link below:
https://brainly.com/question/12978370
#SPJ11
To identify the effect in a text, you can ask yourself which question?
A. What happened?
B. Why did this happen?
C. How did the person feel?
D. Where did this happen?
Answers
Answer:
why did this happen?
Explanation:
effect means what caused it so You should ask why did this happen or (what caused it)
Queries are a very useful object in a database, please explain why.
Answers
Answer:
they tell the producer what to do to make their website better
Explanation:
how does python show that commands belong inside a python structure?
Answers
Python show that commands belong inside a Python structure by using indentation to define the code blocks.
What is Python?Python can be defined as a high-level programming language that is designed and developed to build websites and software applications, especially through the use of dynamic commands (semantics) and data structures.
In Computer programming, Python show that commands belong inside a Python structure by using indentation to define the code blocks.
Read more on Python here: https://brainly.com/question/26497128
#SPJ1
pls help help me is good help me helping is very good
Answers
Answer:
-56 negative
Explanation:
what is the relationship between http and www?
Answers
Answer:
The very first part of the web address (before the “www”) indicates whether the site uses HTTP or HTTPS protocols. So, to recap, the difference between HTTP vs HTTPS is simply the presence of an SSL certificate. HTTP doesn't have SSL and HTTPS has SSL, which encrypts your information so your connections are secured.
Answer:
Simply put, Http is the protocol that enables communication online, transferring data from one machine to another. Www is the set of linked hypertext documents that can be viewed on web browsers
Explanation:
What is one way sprite properties are the same as variables?
Answers
Write an expression that evaluates to true if the value of the int variable widthOfBox is not divisible by the value of the int variable widthOfBook. Assume that widthOfBook is not zero. ("Not divisible" means has a remainder.)
Answers
Answer:
The expression is:
if widthOfBox % widthOfBook != 0
Explanation:
Given
Variables:
(1) widthOfBox and
(2) widthOfBook
Required
Statement that checks if (1) is divisible by (2)
To do this, we make use of the modulo operator. This checks if (1) is divisible by 2
If the result of the operation is 0, then (1) can be divided by (2)
Else, (1) can not be divided by (2)
From the question, we need the statement to be true if the numbers are not divisible.
So, we make use of the not equal to operator alongside the modulo operator
What is the mode of 18, 18, 15, 18, 18, 24, 21, 21, 24, and 14?
18
18.5
21
22.3
Answers
Answer: 18
Explanation:
Answer:
18
Explanation:
Robyn needs to ensure that a command she frequently uses is added to the Quick Access toolbar. This command is not found in the available options under the More button for the Quick Access toolbar. What should Robyn do?
Answers
Answer:
Access Quick Access commands using the More button.
Explanation:
To ensure that a command she frequently uses is added to the Quick Access toolbar Robyn would need to "Access Quick Access commands using the More button."
To do this, Robyn would take the following steps:
1. Go / Click the "Customize the Quick Access Toolbar."
2. Then, from the available options, he would click on "More Commands."
3. From the "More Commands" list, click on "Commands Not in the Ribbon."
4. Check the desired command in the list, and then click the "Add" button.
5. In the case "Commands Not in the Ribbon" list, did not work out Robyn should select the "All commands."
Which of the following best describes what a thesis for a historical essay should be?
A.
a well-researched fact
B.
a summary of an event
C.
an interpretive claim
D.
an uncontestable statement
Answers
Answer:
C. an interpretive
Explanation:
Select all items that represent characteristics of website navigation menus.
consist of a group of hyperlinks
are essential for any website
always contain a link to a site map
use clearly labeled links
are optional if search is available
Answers
Answer:
A B D on edge 2020
Explanation:
Answer:
A- consist of a group of hyperlinks
B- are essential for any website
D- use clearly labeled links
Write HTML code for inserting an image "cricket.jpeg" in size 500 width and 400 height.
Answers
Answer:
<img src="cricket.jpeg" style="width: 500px; height:400px">
One difference between a switch and a router is that a router will only process messages addressed to the router (at layer 2), while a switch processes all messages.
Answers
Answer: True
Explanation:
write two popular ISP of our country nepal
Answers
Nepal boasts of two well-known internet service providers (ISPs):
What are the ISPs in Nepal?Nepal's primary telecommunication service provider, Nepal Telecom or NTC, has established itself as the oldest and largest company in the industry. A plethora of internet services, such as ADSL, fiber optic, and wireless broadband connections, are presented to customers. Nepal Telecom is a company owned by the government and holds a dominant position across the entire country.
WorldLink Communications is among the prominent privately-owned internet service providers (ISPs) in Nepal. It provides lightning-fast internet solutions, comprising fiber-optic connections, which cater to both individual and business clients. WorldLink has become renowned for delivering Internet services that are both dependable and speedy, having extended its network coverage to key urban areas throughout Nepal.
Read more about ISPs here:
https://brainly.com/question/4596087
#SPJ1
…..is the smallest size in audio files
Answers
Answer:
Wav files can be 16 bit,8 kHz (i.e 128 k bits per second) while mp3 could be compressed to 16 kbits per second. Typically wav is x10 larger than mpg. This is ratio is highly content specific. Wav is a raw format, while mp3 is a compressed format for audio.
Explanation:
Answer:
Wav files can be 16 bit,8 kHz (i.e 128 k bits per second) while mp3 could be compressed to 16 kbits per second. Typically wav is x10 larger than mpg. This is ratio is highly content specific. Wav is a raw format, while mp3 is a compressed format for audio.