A certain string processing language allows the programmer to break a string into two pieces. It costs n units of time to break a string of n characters into two pieces, since this involves copying the old string. A programmer wants to break a string into many pieces, and the order in which the breaks are made can affect the total amount of time used. For example, suppose we wish to break a 20-character string after characters 3, 8, and 10. If the breaks are made in left-right order, then the first break costs 20 units of time, the second break costs 17 units of time, and the third break costs 12 units of time, for a total of 49 steps. If the breaks are made in right-left order, the first break costs 20 units of time, the second break costs 10 units of time, and the third break costs 8 units of time, for a total of only 38 steps. Give a dynamic programming algorithm that takes a list of character positions after which to break and determines the cheapest break cost in O(n3) time.
Answers
We can solve this problem using dynamic programming. We define a two-dimensional array dp[i][j] to represent the minimum cost of breaking a substring from index i to index j.
What is the explanation for the above response?
Initially, dp[i][j] is set to j-i because breaking a substring of length j-i+1 into two pieces requires copying j-i+1 characters.
Then, we iterate over all possible lengths of substrings, from 2 to n, and over all possible starting positions of substrings, from 0 to n-length, where n is the length of the original string. For each substring, we consider all possible positions to break it and choose the position that results in the minimum cost.
The final answer is stored in dp[0][n-1], which represents the minimum cost of breaking the entire string into multiple pieces.
Here is the pseudocode for the dynamic programming algorithm:
input: a list of character positions after which to break, breaks[]
(breaks should include 0 and n, where n is the length of the string)
length of the string, n
let dp be a 2D array of size n x n
for i = 0 to n-1:
for j = 0 to n-1:
dp[i][j] = j-i
for length = 2 to n:
for i = 0 to n-length:
j = i+length-1
for k = i+1 to j-1:
cost = dp[i][k] + dp[k][j] + breaks[j] - breaks[i]
dp[i][j] = min(dp[i][j], cost)
output dp[0][n-1]
The time complexity of this algorithm is O(n³) because we have three nested loops, each iterating over a range of size n.
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Related Questions
Which statement about programming languages is true?
1) Lisp was designed for artificial intelligence research.
2) BASIC was the first high-level programming language.
3) FORTRAN was an early programming language designed for business use.
4) Pascal was the first programming language for personal computers.
Answers
Answer:
2
Explanation:
plz make me brainliest
Option A: Lisp was designed for artificial intelligence research.
The acronym Lisp stands for List Programming is a computer programming language developed about 1960 by John McCarthy.Lisp is the second-oldest high-level programming language which has a widespread use today.LISP has a very simple syntax in which a parenthesized list is used to give operations and their operands.This Language was designed for manipulating data strings with convenience.Lisp includes all the working as the function of any object.Lisp uses symbolic functions which are easy to use with AI applications.Originally Lisp was created as a practical mathematical notation used in computer programs.Lisp pioneered many revolutions in the field of computer science such as tree data structures, automatic storage management etc.
How are charts inserted into a PowerPoint slide?
O Open the chart in Excel, click it and drag it into the slide.
O Double-click the chart in Excel, and click inside the slide to paste it into the presentation.
O Use the Copy tool to copy the chart from Excel and the Paste tool to insert it into the slide.
O Take a screenshot of the chart from Excel and paste it into the slide using the Paste tool.
Answers
what do i do for this not to stop me from trying to ask a question. / What phrases are / could be hurtful to brainly? - Don't use such phrases here, not cool! It hurts our feelings :(
Answers
the best answer it requests services, data and other resources available on the server
Answers
Answer:
Explanation:
?
1)write a python program to check wheter the given number is even or odd
2) write a python program to add any 5 subjects makrs, find sum and average (average=sum/5)
3)write a python program to print numbers from 1 to 100 using loops
Answers
Answer:
n = 16
if n%2:
print('{} is odd'.format(n))
else:
print('{} is even'.format(n))
m1 = 5
m2 = 4
m3 = 6
m4 = 8
m5 = 9
sum = m1+m2+m3+m4+m5
average = sum/5
print("The sum is {}, the average is {}". format(sum, average))
for i in range(1, 101): print(i, end=",")
Explanation:
Above program does all three tasks.
Answer:
1) num1 = int(input("Enter the number to be checked: "))
if num1%2==0:
print("Your number is an even number!")
else:
print("Your number is not even!")
2) maths = int(input("Enter your maths mark: "))
english = int(input("Enter your english mark: "))
social = int(input("Enter your social mark: "))
science = int(input("Enter your science mark: "))
computer = int(input("Enter your computer mark: "))
Sum = maths + english + social + science + computer
average = Sum / 5
print("Sum of your marks are:",Sum)
print("average of your marks are:",average)
3) num = 0
while num <= 99:
num+=1
print(num)
Explanation:
Welcome.
The range of an unsigned 6 bit binary number is
0-63
0-64
0-127
1-128
Answers
Answer:
6 bit = 2^6-1=64-1=63
from 0 to 63
When posting electronic resumes how is open block form different from a fill in blank form
Answers
Match each item with a statement below.
a. volatile memory
b. software
c. syntax error
d. machine language
e. sentinel
g. hardware
h. flowchart
i. flowlines
1. Equipment, or the physical devices, associated with a computer.
2. Instructions that tell the computer what to do.
3. Contents are lost when the computer is turned off or loses power.
4. Represents the millions of on/off circuits within the computer.
5. Incorrectly spelled words or reversing the proper order of two words in a computer program.
6. Pictorial representation of the logical steps it takes to solve a problem.
7. English-like representation of the logical steps it takes to solve a problem.
8. Used to show the correct sequence of statements.
9. Preselected value that stops the execution of a program.
Answers
Question: each item with a statement below.
Answer: g. hardware
_______ reality allows physical and virtual elements to interact with one another in an environment; it is not a fully immersive experience because it maintains connections to the real world.
Answers
Answer:
Mixed Reality
Explanation:
PLEASE HELP!! FIRST ANSWER WILL MARK AS BRAINLIEST!!!
What is the most efficient way to control the type of information that is included in the .msg file when a user forwards a contact to another user?
Use the "As an Outlook Contact" option.
Create an additional contact with limited information.
Use the Business Card option.
Create the contact using the XML format.
Answers
Answer:
A on edge
Explanation:
CALCULATE THE MECHANICAL ADVANTAGE (MA).
DATA: F= 135 kg; b= 4*a; L=15 m
Answers
The mechanical advantage (MA) of the lever system in this scenario can be calculated by dividing the length of the longer arm by the length of the shorter arm, resulting in an MA of 4.
To calculate the mechanical advantage (MA) of the lever system, we need to compare the lengths of the two arms. Let's denote the length of the shorter arm as 'a' and the length of the longer arm as 'b'.
Given that the longer arm is four times the length of the shorter arm, we can express it as b = 4a
The mechanical advantage of a lever system is calculated by dividing the length of the longer arm by the length of the shorter arm: MA = b / a.
Now, substituting the value of b in terms of a, we have: MA = (4a) / a.
Simplifying further, we get: MA = 4.
Therefore, the mechanical advantage of this lever system is 4. This means that for every unit of effort applied to the shorter arm, the lever system can lift a load that is four times heavier on the longer arm.
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The complete question may be like:
A lever system is used to lift a load with a weight of 135 kg. The lever consists of two arms, with the length of one arm being four times the length of the other arm. The distance between the fulcrum and the shorter arm is 15 meters.
What is the mechanical advantage (MA) of this lever system?
In this scenario, the mechanical advantage of the lever system can be calculated by comparing the lengths of the two arms. The longer arm (b) is four times the length of the shorter arm (a), and the distance between the fulcrum and the shorter arm is given as 15 meters. By applying the appropriate formula for lever systems, the mechanical advantage (MA) can be determined.
What is the purpose of installing updates on your computer? Check all that apply.
Updating helps block all unwanted traffic.
Updating adds new features.
Updating improves performance and stability.
Updating addresses security vulnerabilities.
Answers
The purpose of installing updates on your computer is to improve performance and stability, add new features, and address security vulnerabilities.
What is address security ?Address security is a type of network security that focuses on controlling which devices or users can access which network address. It involves the use of several techniques such as firewalls, access control lists (ACLs), and IP address filtering to protect the network from malicious activity. Address security also includes implementing secure protocols such as IPSec or SSL/TLS to encrypt communication between two devices or users. This ensures that data is not exposed to outside threats and only authorized users can access the network resources. Address security is a critical component of any network security strategy, as it helps to protect confidential data and resources from external threats.
Updating your computer helps to block all unwanted traffic, which can help protect your data from being accessed by malicious individuals or programs.
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Description For your example project, choose from this list of the most influential projects. To create the following, a: 1. Staffing management plan. 2. RACI chart. 3. Schedule with resource assignme
Answers
In the example project, you need to develop a staffing management plan to allocate resources effectively, create a RACI chart for clear roles and responsibilities, and establish a schedule with resource assignments for timely task completion.
In the example project, you will need to develop a staffing management plan, which outlines how the project team will be structured, roles and responsibilities, and resource allocation. This plan ensures that the right people are assigned to the project and have the necessary skills.
A RACI chart is a tool that helps clarify roles and responsibilities by identifying who is Responsible, Accountable, Consulted, and Informed for each task or decision in the project. It helps prevent confusion and ensures clear communication and accountability among team members.
The schedule with resource assignments is a timeline that outlines the project tasks and their dependencies, along with the allocation of specific resources to each task. This schedule ensures that resources, such as people, equipment, or materials, are allocated efficiently and that tasks are completed within the project's timeframe.
By creating these deliverables, you establish a solid foundation for effective project management, ensuring that the right people are involved, roles are defined, and tasks are scheduled appropriately to achieve project success.
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Which layer of the TCP/IP model provides a route to forward messages through an internetwork? a. application b. network access c. internet d. transport
Answers
The layer of the TCP/IP model that provides a route to forward messages through an internetwork is c. internet.
In the TCP/IP model, the internet layer (also known as the network layer) is responsible for routing packets across different networks or internetworks. It handles the logical addressing and routing of data packets from the source to the destination.
The internet layer uses IP (Internet Protocol) to encapsulate data into packets and assign IP addresses to each device on the network. It determines the best path for data transmission, considering factors such as network topology, congestion, and routing protocols. The internet layer identifies the destination IP address in the packet header and determines the next hop or router to forward the packet to its destination.
By providing routing capabilities, the internet layer enables communication between devices on different networks and ensures efficient delivery of packets across the internetwork.
The internet layer in the TCP/IP model is responsible for routing packets through an internetwork. It determines the optimal path for data transmission and forwards packets based on destination IP addresses, facilitating communication between devices on different networks.
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what is force tell me please
Answers
Explanation:
the push or pull that tends to change a body from motion to rest or rest to motion is force
How would you define a cloud today?
as a non-factor
networking
server
any remote virtualized computing infrastructure
Answers
Answer:
The answer is "any remote virtualized computing infrastructure".
Explanation:
The term cloud is used as the symbol of the internet because cloud computing is some kind of internet computing, that offers various services for computers and phones in organizations via the internet.
The virtual network allows users to share numerous system resources throughout the network system.It allows you to access the optimal productivity by sharing the resources of a single physical computer on many virtual servers.(Simple computation) The formula for computing the discriminant of a quadratic equation ax^2 + bx + c = 0 is b^2 – 4ac. Write a program that computes the discriminant for the equation 3x^2 + 4x + 5 = 0. Class Name: Exercise01_01Extra
Answers
bjj is a transformation of f and the significance of those places in your neighbourhood which are named after famous personalities and prepare a chart or table on
Which term refers to actions that you would typically perform on a computer to revive it if it functions in an unexpected manner?
The corrective action(s) that you need to perform on a computer in case it functions in an unexpected manner is called
Answers
Answer:
Reboot?
Explanation:
Hard to tell from the information provided.
A computer game picks a random number between 1 and 100, and asks the player to guess what the number is. If the player makes a correct guess, the game congratulates them, and stops. If the player does not make a correct guess, the game tells the player that their guess is either too high, or too low. If the player guesses with an answer that is not a number between 1 and 100, an error message is displayed. The game continues to give the player chances to guess, until the player guesses correctly. You are going to plan an interactive program to implement this game. do this using scratch
Answers
Answer:
In Python:
import random
computerguess = random.randint(1,101)
userguess = int(input("Take a guess: "))
while not (userguess == computerguess):
if userguess<1 or userguess>100:
print("Error")
elif not (userguess == computerguess):
if userguess < computerguess:
print("Too small")
else:
print("Too large")
userguess = int(input("Take a guess: "))
print("Congratulations")
Explanation:
This imports the random module
import random
Here, a random number is generated
computerguess = random.randint(1,101)
This prompts the user for a guess
userguess = int(input("Take a guess: "))
The following loop is repeated until the user guess correctly
while not (userguess == computerguess):
If user guess is not between 1 and 100 (inclusive)
if userguess<1 or userguess>100:
This prints error
print("Error")
If the user guessed is not correct
elif not (userguess == computerguess):
If the user guess is less
if userguess < computerguess:
It prints too small
print("Too small")
If otherwise
else:
It prints too large
print("Too large")
This prompts the user for a guess
userguess = int(input("Take a guess: "))
The loop ends here
This prints congratulations when the user guess correctly
print("Congratulations")
Write a program that creates a two-dimensional array named height and stores the following data:
16 17 14
17 18 17
15 17 14
The program should also print the array.
Expected Output
[[16, 17, 14], [17, 18, 17], [15, 17, 14]]
Answers
Answer:
Explanation:
The following code is written in Java and it simply creates the 2-Dimensional int array with the data provided and then uses the Arrays class to easily print the entire array's data in each layer.
import java.util.Arrays;
class Brainly {
public static void main(String[] args) {
int[][] arr = {{16, 17, 14}, {17, 18, 17}, {15, 17, 14}};
System.out.print(Arrays./*Remove this because brainly detects as swearword*/deepToString(arr));
}
}
Answer:
height = []
height.append([16,17,14])
height.append([17,18,17])
height.append([15,17,14])
print(height)
Explanation:
I got 100%.
Help! Will give Brainly Explain what input, output, storage, and processing are in relation to computer functions.
Answers
Answer:
please mark as brainliest
Explanation:
To function, a computer system requires four main aspects of data handling: input, processing, output, and storage. The hardware responsible for these four areas operates as follows: Input devices accept data in a form that the computer can use; they then send the data to the processing unit.
Help please!!
Calculate a student's weight (70 kg) on Earth using the Universal Gravitational Law
Calculate a student's weight (70 kg) on Mercury using the Universal Gravitational Law
Calculate a student's weight (70 kg) on the Sun using the Universal Gravitational Law
Answers
Answer:
1) The student's weight on Earth is approximately 687.398 N
2) The student's weight on Mercury is approximately 257.85 N
3) The student's weight on the Sun is approximately 19,164.428 N
Explanation:
The mass of the student, m = 70 kg
1) The mass of the Earth, M = 5.972 × 10²⁴ kg
The radius of the Earth, R = 6,371 km = 6.371 × 10⁶ m
The universal gravitational constant, G = 6.67430 × 10⁻¹¹ N·m²/kg²
Mathematically, the universal gravitational law is given as follows;
\(F_g =G \times \dfrac{M \cdot m}{R^{2}}\)
Therefore, we have;
\(F_g=6.67430 \times 10^{-11} \times \dfrac{5.972 \times 10^{24} \cdot 70}{(6.371 \times 10^6)^{2}} \approx 687.398\)
\(F_g\) = W ≈ 687.398 N
The student's weight on Earth, W ≈ 687.398 N
2) On Mercury, we have;
The mass of Mercury, M₂ = 3.285 × 10²³ kg
The radius of Mercury, R₂ = 2,439.7 km = 2.4397 × 10⁶ m
The universal gravitational constant, G = 6.67430 × 10⁻¹¹ N·m²/kg²
The universal gravitational law is \(F_g =G \times \dfrac{M_2 \cdot m}{R_2^{2}}\)
Therefore, we have;
\(F_g=6.67430 \times 10^{-11} \times \dfrac{3.285 \times 10^{23} \cdot 70}{(2.4397 \times 10^6)^{2}} \approx 257.85\)
\(F_g\) = W₂ ≈ 257.85 N
The student's weight on Mercury, W₂ ≈ 257.85 N
3) On the Sun, we have;
The mass of the Sun, M₃ ≈ 1.989 × 10³⁰ kg
The radius of the Sun, R₃ ≈ 696,340 km = 6.9634 × 10⁸ m
The universal gravitational constant, G = 6.67430 × 10⁻¹¹ N·m²/kg²
The universal gravitational law is \(F_g =G \times \dfrac{M_3 \cdot m}{R_3^{2}}\)
Therefore, we have;
\(F_g=6.67430 \times 10^{-11} \times \dfrac{1.989 \times 10^{30} \cdot 70}{(6.9634 \times 10^8)^{2}} \approx 19,164.428\)
\(F_g\) = W₃ ≈ 19,164.428 N
The student's weight on the Sun, W₃ ≈ 19,164.428 N
Which of these words does not describe factual data?
Question 1 options:
observation
measurement
calculation
opinion
Answers
Answer:
Opinion.
Explanation:
Opinions are made by what someone thinks. What someone thinks is not nececarrily based on true facts.
Which of the following is NOT a factor of identifying graphic design?
Answers
Answer:
i think it is a
Explanation:
sorry if it is wrong
Answer: answer is B
Explanation:
I am sure about it
can you help please ill give branilist
How does HTML help solve the problem of telling a computer what goes on a web page and how it should be organized?
Answers
HTML uses tags to help the computer know what different pieces of content in the web page actually are. Right now we've only learned how to tell the computer that some text is a paragraph, or that part of your website is the body. We've already seen how that affects the way our web pages look and are structured.
(I don't know how it should be organized, but hope this helped)
I get such an error when I turn on the computer, how can I fix it?
Answers
Answer:
Use the HLL ( Java C++ ) code to fetch the commands of that program, then translate them using any translatory program such as Microsoft notepad.
Or:
Download any utility software such as Avast, thunderbird, Dr. Solomon, or Norton software
Then install it to memory.
Explain briefly what would happen if marketing research is not conducted before a product is developed and produced for sale.
Answers
Neglecting to do market research can result in indecision and inaction, fear of risk or the truth, and/or too many options, which can lead to paralysis. ... When launching a new product, effective market research will help you narrow down your true market potential and your most likely customers.
Choose the missing words in the code below.
quotient = numA/ numB
ZeroDivisionError:
print("You attempted to divide by zero")
print ("Quotient", quotient)
Answers
Answer:
try
except
else
Explanation:
just got it right
Answer:
try
except
else
Explanation:
Where would you find the Create Table Dialog box ?
Answers
Hope it’s right
Best luck with your studying
Answer:
From the Insert command tab, in the Tables group, click Table. NOTES: The Create Table dialog box appears, displaying the selected cell range.
Explanation:
why are the ninja turtles named Leonardo, Michelangelo, Donatello and Raphael?
Answers
Answer:
These has a actual answer the answer is that they were named afther italian artist so there homage to these artist
Explanation:
Another fun fact these artist were loved by the creator of ninja tutles that another reason wy it there names