Replace test.txt with the path to your test file. The program will display the total number of words or the number of unique words, depending on the specified mode using the -t or -u options, respectively.
Here's the modified code that incorporates the required functionality:
#include <iostream>
#include <vector>
#include <string>
#include <getopt.h>
using namespace std;
int main(int argc, char** argv) {
enum { total, unique } mode = total;
for (int c; (c = getopt(argc, argv, "tu")) != -1;) {
switch(c) {
case 't':
mode = total;
break;
case 'u':
mode = unique;
break;
}
}
argc -= optind;
argv += optind;
string word;
int count = 0;
vector<string> words;
while (cin >> word) {
words.push_back(word);
count++;
}
switch (mode) {
case total:
cout << "Total: " << count << endl;
break;
case unique:
cout << "Unique: " << words.size() << endl;
break;
}
return 0;
}
This code reads words from the input and stores them in a vector<string> called words. The variable count keeps track of the total number of words read. When the -u option is provided, the size of the words vector is used to determine the number of unique words.
To compile and run the program, use the following commands:
bash
Copy code
g++ words.cpp -o words
./words < test.txt
Replace test.txt with the path to your test file. The program will display the total number of words or the number of unique words, depending on the specified mode using the -t or -u options, respectively.
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What does efficiency measure?
Answer:
Efficiency is defined as any performance that uses the fewest number of inputs to produce the greatest number of outputs. Simply put, you're efficient if you get more out of less.
Explanation:
This
question relates to RIPARIAN ECOHYDR & MANAGEMENT
What is the return interval for a flood with a \( 5 \% \) chance of occurring in a given year? (include units)
The return interval for a flood with a 5% chance of occurring in a given year is approximately 1.0526 years, or approximately 1 year and 21 days
The return interval for a flood with a 5% chance of occurring in a given year can be calculated using statistical methods. The return interval represents the average time period between occurrences of a specific event, such as a flood, with a certain probability. In this case, we want to determine the return interval for a flood with a 5% chance, also known as the 20-year flood.
To calculate the return interval, we need to use the concept of exceedance probability. The exceedance probability is the probability of a flood of a certain magnitude being equalled or exceeded in any given year.
1. Calculate the exceedance probability:
Exceedance probability = 1 - Probability of occurrence in a given year
In this case, the probability of occurrence in a given year is 5% (or 0.05). Therefore:
Exceedance probability = 1 - 0.05 = 0.95
2. Calculate the return interval:
Return interval = 1 / Exceedance probability
Return interval = 1 / 0.95 = 1.0526
It's important to note that this calculation assumes that the probability of a flood occurrence remains constant over time and that the occurrence of floods follows a random distribution. The return interval is a statistical estimate and should be interpreted as an average value. Actual flood events can vary significantly and may not precisely align with the calculated return interval.
Return intervals are commonly used in hydrology and floodplain management to assess flood risks, design infrastructure, and establish flood insurance rates. They provide a useful framework for understanding the frequency and magnitude of flood events, allowing for informed decision-making in riparian ecohydrology and management.
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The building areas where loose fill insulation is most commonly used are
Answer:
Loose-fill insulation can be installed in either enclosed cavities such as walls, or unenclosed spaces such as attics
Explanation:
Answer in one of my classes
Explain any five applications of computer modeling in beams.
Answer:
Explain any five applications of computer modeling in beams.
Explanation:
How many grains are on the surface of the head of a pin? assume that the head of a pin is spherical with a 1-mm diameter and has an astm grain size of 10
Answer:
Given, diameter of pin head d = 1 mm = 1/25.4 = 0.0394 in Surface area of a pinhead, A = 4pr^2 =
Explanation:
eesh
During normal operation, refrigerant pumped into a condenser is in the form of ____.
During normal operation, refrigerant pumped into a condenser is in the form of a gas.
What is refrigeration?The process of maintaining the temperature of the desired space lower than that of the surroundings is called refrigeration. In the process of refrigeration, the chemical used is called refrigerant.
In the cycle of refrigeration, the liquid form of the refrigerant took heat from the desired space in the evaporator and is taken by the compressor where it is compressed at a high temperature and pressure greater than that of an atmosphere.
The refrigerant now is pumped to the condenser in the form of high-pressure and high-temperature gas. Here it loses its heat to the atmosphere and condenses in the form of liquid.
Therefore, during normal operation, refrigerant pumped into a condenser is in the form of a gas.
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© 2022. Grand Canyon University. All Rights Reserved.APA Activity 2: Citing PracticeCreate a reference page by citing the following sources in correct APA format. You may use your text or the GCU Library website to help you, but do not use citation generators.•A textbook: The second edition of Psychology and Your Life by Robert S. Feldman written in 2013. The publishing city is New York, New York published from McGraw Hill Companies.•Snickers commercial https://youtu.be/2rF_FRCd_LA •PBS Frontline special League of Denial •The document found at this address:http://www.eia.gov/forecasts/aeo/er/pdf/0383er(2013).pdf•The movie Silver Linings Playbook•The episode of Friends titled: The One After Joey and Rachel Kiss•The 7th edition of the APA Manual
Using APA reference style, the references is attached below from Feldman, R. S. (2013) to American Psychology Association (2020)
What is APA Reference StyleAPA reference style is a style of citing sources used by the American Psychological Association. It is primarily used in the social sciences and includes guidelines for citing sources both within the text of a document and in the reference list at the end of the document. The guidelines provide a consistent way of citing sources to make it easier for readers to identify and locate the sources cited in a document.
In the given problem, if we need to write the reference using APA style, it will take this format below
Reference Page:
Feldman, R. S. (2013). Psychology and your life (2nd ed.). New York, NY: McGraw Hill Companies.
Frontline. (n.d.). League of denial. Retrieved from https://www.pbs.org/wgbh/frontline/film/league-of-denial/
Friends. (2004). The one after Joey and Rachel kiss [Television series episode]. In D. Crane, & M. Kauffman (Executive producers), Friends. Burbank, CA: Warner Bros. Television.
Silver Linings Playbook. (2012). [Motion Picture]. United States: The Weinstein Company.
U.S. Energy Information Administration. (2013). Annual energy outlook 2013 with projections to 2040. Retrieved from http://www.eia.gov/forecasts/aeo/er/pdf/0383er(2013).pdf
Snickers. (2013, April 2). You’re not you when you’re hungry [Video file]. Retrieved from https://youtu.be/2rF_FRCd_LA
American Psychological Association. (2020). Publication manual of the American Psychological Association (7th ed.). doi:10.1037/0000165-000
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the thurst from a bottle rocket last until
Answer:
what are you in third grade??
Explanation:
the answer is the air pressure inside of the bottle reaches the same air pressure as outside of the bottle. K?? got it love???I hope soo
Answer:
the air pressure inside of the bottle reaches the same air pressure as outside of the bottle.
Explanation:
a caisson is a watertight enclosure that can be pumped dry so that construction activities, such as the construction of piers can take place. _______
A caisson is a watertight enclosure that can be pumped dry so that construction activities, such as the construction of piers can take place. A caisson is a watertight structure or chamber, usually made of wood, metal, or concrete, that is sunk to the bed of a river, lake, or ocean to provide a foundation or support for a bridge, building, or other structure.
A caisson is constructed onshore and then floated to the location where it is to be sunk into the water. Once in place, water is pumped out of the caisson, and construction workers enter the dry chamber to begin work on the foundation or support structure. The use of caissons has been an important development in the construction of bridges and other structures in areas with deep water or unstable soils.
A foundation called a caisson is used in construction on soft or deep water. It involves filling a series of large, watertight cylinders with concrete and sinking them into the ground. The base serves as a solid foundation for any subsequent structures. The construction of large structures like bridges, docks, and caissons is common.
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need help with 26-29. first person to answer Will get brainliest
When the variables are expressed in terms of fundamental dimensions, we get:
Absorbed radiation dose (D) [J/kg] - L²T⁻²Electrical field - E =MLT⁻³I⁻¹Acoustic impedance - Z = MT⁻¹L⁻²Magnetic permeability - µ = LTI⁻¹Ideal gas constant (R) - R = ML²T⁻²Θ⁻¹Stefan-Boltzmann constant - σ = MT⁻³Θ⁻⁴What are derived units ?In physics, derived units are units that are formed by combining fundamental units such as length, mass, time, temperature, and electric charge. For example, velocity is a derived unit that combines length and time, expressed as meters per second (m/s).
The questions 24 to 29 are asking to express the given quantities in terms of fundamental dimensions. The unit of absorbed radiation dose is the joule per kilogram (J/kg).
The unit of electrical field is volts per meter (V/m). The unit of acoustic impedance is pascals per second per meter (Pa s/m). The unit of magnetic permeability is henries per meter (H/m). The unit of ideal gas constant is atmospheres times liters per mole times kelvin (atm L/(mol K)).
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Technician A says that a scan tool is commonly used to pinpoint electronically controlled transmission noise issues. Technician B says that the PCM/TCM controls gear selection on an electronically controlled transmission. Who is correct
Technician A says that a scan tool is commonly used to pinpoint electronically controlled transmission noise issues. Technician B says that the PCM/TCM controls gear selection on an electronically controlled transmission. Both technicians are correct.
Who is a technician?A technician is a person that is expert of technical instruments. He has the knowledge to repair technical issues.
Both Technicians are correct because the one is talking about scan tool which is correct and PCM/TCM are used in gears related to vehicles.
Thus, Technician A and Technician B are correct.
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Military glorification through mosaics, relief carvings and triumphant arches are often associated with?
Military glorification through mosaics, relief carvings and triumphant arches are often associated with roman architectural monument and is the correct choice.
What is a Monument?This can be defined as a structure which is usually large and is used to commemorate the history of an influential person. This helps to serve as an example and also a reminder as to why the performance of good deeds are important
The use of military glorification through mosaics, relief carvings and triumphant arches were also often used by the Romans in other to commemorate war victories and the succession of a new ruler which is known as the emperor.
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true/false. When the robot reaches the gray square, it turns around and faces the bottom of the grid. Which of the following changes, if any, should be made to the code segment to move the robot back to its original position in the bottom-left square of the grid and facing toward the bottom of the grid
Because the head point is to the left and is at location 0,3, the second grid. Alternative A, C, and F will all be incorrect if part B is correct.
The way a grid functions?A grid is a pattern of intersecting lines or bars. It acts as a blueprint for dividing up and organizing a space. Lines that intersect at right angles and are equally spaced apart make up a two-dimensional grid. Grids can be used to order and organize information.
calculation
Since the initial if statement, calling move #1: direction = left, turtles moves right, at location (2, 3). Second time, turtle travels forward, direction = right, position (2,4), head right, Third attempt, left direction, turtle pointing a. Position ( 1, 4), Moving ahead and pointing up for the fourth time, at position 0,4. five times.
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The current flow in an NMOS transistor is due to one of the following:
(a) Electrons
(b) Holes
(c) Both
Answer:
(a) Electrons
Explanation:
When there is a current flow in a transistor of NMOS so it is because of electrons as in NMOS the current is flowing from drain to source. Since the flow of electrons is from source to drain. Also the current would be inverse direction for electrons flow
Therefore the option A is correct
hence, the other options are incorrect
What are some of the most complex building types to design?.
*WELDING*
What size arc gap is suggested with a 5/32" (4.0mm) diameter electrode?
Solution :
The correct size of the arc of a welding process depends upon the application and the electrode. As a rule, the arc length should not be more than a diameter of the core of the electrode.
As for the electrode of diameter size of 5/32" or 4 mm, the arc length should be more than its core diameter. Also for 5/32 " diameter electrode, the welding time for the one electrode must be one minute as well as the length of the weld be the same as the length of the electrode consumed.
gradual process by which machines replaced hand tools
The Industrial Revolution refers to the gradual process by which machines replaced hand tools in the early 1800s.
What is Industrial Revolution?
The Industrial Revolution was a period of significant change from the mid-18th century to the mid-19th century, characterized by the transition from hand-based to machine-based manufacturing, increased agricultural productivity, and new developments in transportation.
The growth of iron and textile industries marked the beginning of this era, which spread throughout Britain and eventually to other countries in Europe and North America. It brought about massive changes in the way goods were produced, leading to higher levels of efficiency and a shift from a agrarian to an industrialized economy, transforming the lives of millions of people and setting the stage for the modern era.
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Show that if a DECREMENT operation were included in the k-bit counter example, n operations could cost as much as Θ(nk) time. 2.Suppose we wish not only to increment a counter but also to reset it to zero (i.e., make all bits in it 0). Counting the time to examine or modify a bit as THETA(1), show how to implement a counter as an array of bits so that any sequence of n INCREMENT and RESET operations takes time O(n) on an initially zero counter. (Hint: Keep a pointer to the high-order 1.)
Including a DECREMENT operation in the k-bit counter example would result in a worst-case time complexity of Θ(nk) for n operations.
This is because each DECREMENT operation would require iterating through all k bits to determine the bit to decrement, resulting in a linear time complexity for each DECREMENT operation. Thus, for n DECREMENT operations, the overall time complexity would be Θ(nk).In a k-bit counter, each bit represents a power of 2. When performing a DECREMENT operation, we need to identify the rightmost set bit and decrement it. This requires scanning all k bits until the rightmost set bit is found. As the number of bits (k) increases, the time required for each DECREMENT operation grows linearly. Therefore, for n DECREMENT operations, the time complexity would be Θ(nk).
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in this part you will generate a signal consisting of a sum of sinusoids with specified amplitudes, frequencies, and phases and analyze it using matlab’s built-in spectrogram command. you should be familiar with spectrogram from ece 201.
Answer:
Explanation:
A spectrogram is a Visual representation of the spectrum of frequencies in a sound or other signal as the vary with time or some other variable, hope this helps :)
Solve below expression. First derive your answer as a function of n then calculate the whole values with the specified value of n. Show the derivation steps. A. 32log3nwheren=5i=6 B. ∑n+2(i+3)wheren=98
The expression can be written as:
(n+2+1) [(n+2+1)+1]/2 - (n) [(n)+1]/2= 100 (101)/2 - 98(99)/2 = 10100 - 9702
n = 98 = 10100 - 9702= 398
The following are the steps involved in solving the given expressions:
Expression 1: 32log3n where n = 5i = 6
Derivation: We know that 32 can be written as 25.
Therefore, the expression becomes:
25log3n.
Using the formula of logarithm
logab= logcb / logca,
we can write:
25log3n = (log3n)⁵.
The differentiation of (log3n)⁵ is given by the chain rule: d/dx(log3n)⁵ = 5(log3n)⁴. (1/n * dn/dx)
Put n=5i:
d/di(log3(5i))⁵ = 5(log3(5i))⁴.(1/5 * d(5i)/di) = i(log3(5i))⁴ / i = (log3(5i))⁴ Substitute the value of i = 6: (log3(5*6))⁴ = (log3(30))⁴ = 12.15
Whole value: 32log3n where n = 5i = 6 = 32(log3n)^5 where n = 5i = 6= 32(log330)⁵= 32*12.15= 388.77
Expression 2: ∑n+2(i+3) where n = 98
Derivation:∑n+2(i+3) = ∑i+5 for i = n to n+2+1.
Using the formula of the sum of n natural numbers, ∑n= n(n+1)/2,
The above expression can be written as:
(n+2+1) [(n+2+1)+1]/2 - (n) [(n)+1]/2= 100 (101)/2 - 98(99)/2 = 10100 - 9702
Whole value: ∑n+2(i+3)
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AC motor characteristics require the applied voltage to be proportionally adjusted by an AC drive whenever the frequency is changed. True or false?
A 240-ton tugboat is moving at 6 ft/s with a slack towing cable attached to a 100-ton barge that is at rest. The cable is being unwound from a drum on the tugboat at a constant rate of 5.4 ft/s and that rate is maintained after the cable becomes taut.
The velocity of the tugboat after the cable becomes taut is:_________
The velocity when the cable becomes taut can be obtained by assuming
that the tugboat collides with a barge moving in the same direction.
Response (approximate value):
The velocity of the tugboat after the cable becomes taut is: 5.824 ft./s.How is the law of conservation of linear momentum used to calculate the speed of the tugboat?Weight of the tugboat, m₁ = 240–ton
Speed of the tugboat, v₁ = 6 ft./s
Weight of the barge, m₂ = 100–ton
Rate at which the towing cable is being unwound, v₂ = 5.4 ft./s
Required:
Velocity of the tugboat after the cable becomes taut.
Solution:
m₁ = 240 ton = 240,000 kg
m₂ = 100 ton = 100,000 kg
The velocity of the barge at rest is assumed to be the rate at which the cable is being unwound, and in the direction of the tugboat.
According to the law of conservation of linear momentum, we have;
m₁ × v₁ + m₂ × v₂ = (m₁ + m₂) × v₃
Which gives;
240 × 6 + 100 × 5.4 = (240 + 100) × v₃
1980 = 340 × v₃
Which gives;
\(v_3 = \dfrac{1980}{340} = \dfrac{99}{17} = 5\frac{14}{17} \approx \mathbf{ 5.824}\)
The velocity of the tugboat after the rope becomes taut is 5.824 ft./s
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A heat pump heats the air in a rigid, insulated cuboid room of size 25m x 10m x 4m. The heat pump consumes 15 kW of power. The initial temperature and pressure in this room are 12°C and 1 bar, respectively. With an average coefficient of performance of COPHP= 3.0 over the range of air temperature in this room.
Requried:
How long will it take to raise the temperature in the room to 27 °C?
Answer:
Time required = 287.2 secs
Explanation:
Volume of room = 25 * 10 * 4 = 1000 m^3
power consumed by pump = 15 kW
T1 ( initial temperature ) = 12°C
P1 ( Initial pressure ) = 1 bar
COPhp = 3
Calculate time taken to raise room Temp to 27°C
average heat supplied ( ∅ ) = COPhp * power consumed by pump
= 3 * 15 = 45 kW
Time required can be calculated using the relation below
∅t = P*V*Cv ( T2 - T1 ) [ p = 1.2 kg/m^3 , Cv = 0.718 KJ/kg ( air properties ) ]
45 * 10^3 ( t ) = 1.2*1000* 718 ( 27 - 12 )
∴ solving for t
t = 287.2 secs ≈ 4.79 mins
R-744 refrigerant is bad why
Answer:
Explanation:
R-744 is seen as the 'perfect' natural refrigerant as it is climate neutral and there is not a flammability or toxicity risk. It is rated as an A1 from ASHRAE. While it is non-toxic there is still risk if a leak occurs in an enclosed area as R-744 will displace the oxygen in the room and could cause asphyxiation
QUESTIONS
DOK S STANDARD RST.1
MS-PS2-2
A car driving at a constant speed of 20 m/s(meters per second)
turns right, down a street.
1. Is the car accelerating during the turn? Why or why not?
2. Would you feel any of the movement during this event? Why
or why not?
ANSWER:
1) The car is not accelerating, because for the the car to turn while accelerating down the street, it has to deaccelerate (reduce speed) due to CENTRIPETAL FORCE that is acting on the car during the turn. This force acts to bring the car in the direction where it has turned to.
2) You will feel the movement as everyone in the car will tend to fall to the left, while the car makes a right turn. This is because of CENTRIFUGAL FORCE, which is acting to take the car to a left direction, while the car is turning to the right direction.
a reciprocating engine automatic mixture control responds to changes in air density caused by changes in
A reciprocating engine automatic mixture control responds to changes in air density caused by changes in altitude or temperature.
What is a system for a reciprocating engine?An engine that uses one or more pistons to transfer pressure into rotational motion is referred to as a reciprocating engine. They convert this energy using the pistons' reciprocating (up and down) action.
A calibrated needle, seat, and bellows assembly make up the automatic mixture control device.The automatic mixture control is used to account for variations in air density brought on by changes in temperature and altitude.
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What type of sensor is a crankshaft position sensor?
What are the four scanning systems as per biomedical engineering
Answer:
- Ultrasound scanning system
- Magnetic Resonance Imaging (MRI)
- Computed tomography (CT)
- X - Ray scan
Explanation:
\(.\)
Answer:
- USS Ultarsound
- Medical sonography
In a vehicle with front disc brakes, the vehicle pulls to the left when braking. What causes this?
A. Seized left brake caliper piston
B. Collapsed left brake line hose
What signal propagation phenomena causes the diffusion, or the reflection in multiple different directions, of a signal?
In the radio communication system, multipath is the propagation phenomenon that causes diffusion or reflection in multiple different directions of a signal.
Multipath is a propagation mechanism that impacts the propagation of signals in radio communication. Multipath results in the transmission of data to the receiving antenna by two or more paths. Diffusion and reflection are the causes that create multiple paths for the signal to be delivered.
Diffraction occurs when a signal bends around sharp corners; while reflection occurs when a signal impinges on a smooth object. When a signal is received through more than one path because of the diffraction or reflection, it creates phase shifting and interference of the signal.
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