Suggested Time to Spend: 20 minutes. Note: Turn the spelling checker off (if it is on). If you change your answer box to the full screen mode, the spelling checker will be automatically on Please turn it off again Q4.2: Write a full C++ program that will convert an input string from uppercase to lowercase and vice versa without changing its format. See the following example runs. Important note: Your program should be able to read a string, including white spaces and special characters. Example Run 1 of the program (user's input is in bold) Enter the input string john Output string JOHN Example Run 2 of the program (user's input is in bold). Enter the input string Smith Output string SMITH Example Run 3 of the program (user's input is in bold) Enter the input string JOHN Smith Output string: john SMITH
Answers
Answer:
Here is an example C++ program that will convert an input string from uppercase to lowercase and vice versa without changing its format:
#include <iostream>
using namespace std;
int main() {
string str;
getline(cin, str);
for (int i=0; i<str.length(); i++) {
if (islower(str[i]))
str[i] = toupper(str[i]);
else
str[i] = tolower(str[i]);
}
cout << str << endl;
return 0;
}
Explanation:
We start by including the iostream library which allows us to read user input and write output to the console.
We declare a string variable str to store the user input.
We use getline to read the entire line of input (including white spaces and special characters) and store it in str.
We use a for loop to iterate through each character in the string.
We use islower to check if the current character is a lowercase letter.
If the current character is a lowercase letter, we use toupper to convert it to uppercase.
If the current character is not a lowercase letter (i.e. it is already uppercase or not a letter at all), we use tolower to convert it to lowercase.
We output the resulting string to the console using cout.
We return 0 to indicate that the program has executed successfully.
When the user enters the input string, the program converts it to either uppercase or lowercase depending on the original case of each letter. The resulting string is then printed to the console.
Explanation:
Related Questions
1) Translate the following MIPS Assembly Code to MIPS Machine Code. Give your answer in both Binary and Hex.
addi $t0, $s6, 4
add $t1, $s6, $0
sw $t1, 0($t0)
lw $t0, 0($t0)
add $s0, $t1, $t0
Answers
Here is the translation of the given MIPS Assembly Code to MIPS Machine Code in both binary and hexadecimal forms:
1. addi $t0, $s6, 4
Binary: 001000 100110 01000 000000000100
Hex: 0x21300004
2. add $t1, $s6, $0
Binary: 000000 100110 00000 01001 00000 100000
Hex: 0x02C00820
3. sw $t1, 0($t0)
Binary: 101011 01000 01001 000000000000
Hex: 0xAD080000
4. lw $t0, 0($t0)
Binary: 100011 01000 01000 000000000000
Hex: 0x8D080000
5. add $s0, $t1, $t0
Binary: 000000 01001 01000 10000 00000 100000
Hex: 0x01288020
So the MIPS Machine Code for the given MIPS Assembly Code is:
Binary:
001000 100110 01000 000000000100
000000 100110 00000 01001 00000 100000
101011 01000 01001 000000000000
100011 01000 01000 000000000000
000000 01001 01000 10000 00000 100000
Hexadecimal:
0x21300004
0x02C00820
0xAD080000
0x8D080000
0x01288020
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Determine the NPW, AW, FW and IRR of the following engineering project. • Initial Cost ($400,000) • The Study Period 15 years Salvage (Market) Value of the project 15% of the initial cost Operating Costs in the first year ($9,000) • Cost Increase 3% per year • Benefits in the first year $40,000 Benefit Increase 9% per year • MARR 8% per year Is the Project acceptable? WHY?
Answers
The CEO of PT ABC asked the project manager to use PW, AW, and FW to prioritize the project while also adding the expected reject rate between each alternative.
Thus, This implies that the anticipated revenue will vary depending on the choice. The three projects are prioritized by the project manager. The CEO will assess which option will be more profitable than the others.
The quantity of money that is accessible for investment, as well as where and how much it cost (for example, whether it came from equity funds or borrowed funds).
The quantity of worthwhile projects that are open to investment and their objective (i.e., whether they maintain current operations and serve a necessary purpose or whether they enlarge current operations and serve a discretionary purpose) and PW.
Thus, The CEO of PT ABC asked the project manager to use PW, AW, and FW to prioritize the project while also adding the expected reject rate between each alternative.
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Which of the following is shared among threads? Select all that apply. file descriptors registers stack memory virtual address space
Answers
Every thread have its own stack, register, and PC, so only address space that is shared by all thread for a single process.
Why threads are important?The use of threads has a number of advantages. A thread is more effective. For a new thread, the operating system does not need to construct a new memory map (as it does for a process). In order to monitor the status of open files and increase reference counts on open file descriptors, it is not necessary to allocate new structures.Additionally, threading makes some programming styles simple. Although it is true that shared memory among threads increases the risk of problems, shared memory also makes it simple to communicate data among threads. All threads in a process can read from and write to the same global and static variables.To learn more about thread, refer to
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Help me!!
Within the processes of a power plant, combustion product gases are available at 430 ºC. It is required to take advantage of the heat of these gases and it is proposed to size an economizer to heat pressurized water from 70ºC to 180ºC.
It is known that there is 8 kg/s of water with Cp=4260 J/kg.K. The gases have a flow of 30 kg/s and Cp=1100 J/kg.K. Calculate:
a) the heat that can be transferred from the gases to the water, in kW.
b) the outlet temperature of the combustion gases, in ºC.
b) the average logarithmic difference of temperatures of the economizer, in ºC.
c) the required heat transfer area in m2, for a counterflow configuration if the overall heat transfer coefficient is 60 W/m2 K.
d) If you plan to use a coil of tubes 4 m long and 15 cm in diameter, calculate the number of tubes needed for the economizer.
Answers
Answer: System Consists Of 1 Kg Of CO2 (Cp = 46.4 J Moll K:') Gas Initially At 1 Bar And 300K. The System Undergo
Explanation:
The circuit to the airbag inflation module is connected from the steering column to the steering wheel through which component? A) Clock spring (coil) B) Slip ring and carbon brushesC) Magnetic field sensorD) Hall-effect switch
Answers
The circuit to the airbag inflation module is connected from the steering column to the steering wheel through clock spring (coil). The answer is option A.
The circuit to the airbag inflation module is connected from the steering column to the steering wheel through the clock spring (coil).
The clock spring (coil) connects the circuit to the airbag inflation module from the steering column to the steering wheel, allowing for electrical continuity while the steering wheel is turned.
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The circuit to the airbag inflation module is connected from the steering column to the steering wheel through the component A) Clock spring (coil).
The goal of an airbag is to slow the passenger's forward motion as evenly as possible in a fraction of a second. There are three parts to an airbag that help to accomplish this feat:
The bag itself is made of a thin, nylon fabric, which is folded into the steering wheel or dashboard or, more recently, the seat or door.
The sensor is the device that tells the bag to inflate. Inflation happens when there is a collision force equal to running into a brick wall at 10 to 15 miles per hour (16 to 24 km per hour). A mechanical switch is flipped when there is a mass shift that closes an electrical contact, telling the sensors that a crash has occurred. The sensors receive information from an accelerometer built into a microchip.
The airbag's inflation system reacts sodium azide (NaN3) with potassium nitrate (KNO3) to produce nitrogen gas. Hot blasts of the nitrogen inflate the airbag.
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How do I complete a database Part 1?
Answers
Ragman assigns the mission "Database - Part 1" in Escape From Tarkov. You are asked to get the cargo manifests for Goshan, OLI, and IDEA from Interchange. Contents. Database for Escape from Tarkov: Part 1 Quest Information.
How do I complete a database Part 1?You can keep information on a certain topic in an organized way using a database. It's fantastic when you need to keep a computer system's worth of searchable data or information. Many systems in use today employ databases.
A database is used to store user information on nearly all popular websites with a large user base and almost every online store that sells things. Most databases comprise one or more tables, each of which may have a number of unique fields.
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If an uncharged capacitor, a resistor, a switch and a 12 V battery are connected in series, what is the voltage across the capacitor after it is fully charged? 24 V 0-6v. 12V 6V
Answers
The voltage across the capacitor after it is fully charged is 12V.Once the capacitor is fully charged, it reaches its maximum voltage
When an uncharged capacitor is connected in series with a resistor, a switch, and a 12V battery, a charging circuit is formed. Initially, the capacitor has no charge, and the battery voltage of 12V is applied across it. As the circuit is closed by flipping the switch, the charging process begins.
During the charging process, the capacitor gradually accumulates charge and the voltage across it increases. However, once the capacitor is fully charged, it reaches its maximum voltage, which in this case is the same as the battery voltage of 12V.
At this point, the capacitor can no longer accumulate more charge, and the voltage across it remains constant at 12V.
This is because, in a fully charged capacitor, the electric field between the capacitor plates reaches equilibrium, and the capacitor acts as an open circuit. Therefore, no current flows through the capacitor, and the voltage across it remains at the same level as the source voltage.
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A conceptual issue can be resolved by which of the following?
Answers
Answer:
Investigation or empircial research
Explanation:
gimme brainliest pls
A 4-L pressure cooker has an operating pressure of 175 kPa. Initially, one-half of the volume is filled with liquid and the other half with vapor. If it is desired that the pressure cooker not run out of liquid water for 75 min, determine the highest rate of heat transfer allowed.
Answers
Answer:
the highest rate of heat transfer allowed is 0.9306 kW
Explanation:
Given the data in the question;
Volume = 4L = 0.004 m³
V\(_f\) = V\(_g\) = 0.002 m³
Using Table ( saturated water - pressure table);
at pressure p = 175 kPa;
v\(_f\) = 0.001057 m³/kg
v\(_g\) = 1.0037 m³/kg
u\(_f\) = 486.82 kJ/kg
u\(_g\) 2524.5 kJ/kg
h\(_g\) = 2700.2 kJ/kg
So the initial mass of the water;
m₁ = V\(_f\)/v\(_f\) + V\(_g\)/v\(_g\)
we substitute
m₁ = 0.002/0.001057 + 0.002/1.0037
m₁ = 1.89414 kg
Now, the final mass will be;
m₂ = V/v\(_g\)
m₂ = 0.004 / 1.0037
m₂ = 0.003985 kg
Now, mass leaving the pressure cooker is;
m\(_{out\) = m₁ - m₂
m\(_{out\) = 1.89414 - 0.003985
m\(_{out\) = 1.890155 kg
so, Initial internal energy will be;
U₁ = m\(_f\)u\(_f\) + m\(_g\)u\(_g\)
U₁ = (V\(_f\)/v\(_f\))u\(_f\) + (V\(_g\)/v\(_g\))u\(_g\)
we substitute
U₁ = (0.002/0.001057)(486.82) + (0.002/1.0037)(2524.5)
U₁ = 921.135288 + 5.030387
U₁ = 926.165675 kJ
Now, using Energy balance;
E\(_{in\) - E\(_{out\) = ΔE\(_{sys\)
QΔt - m\(_{out\)h\(_{out\) = m₂u₂ - U₁
QΔt - m\(_{out\)h\(_g\) = m₂u\(_g\) - U₁
given that time = 75 min = 75 × 60s = 4500 sec
so we substitute
Q(4500) - ( 1.890155 × 2700.2 ) = ( 0.003985 × 2524.5 ) - 926.165675
Q(4500) - 5103.7965 = 10.06013 - 926.165675
Q(4500) = 10.06013 - 926.165675 + 5103.7965
Q(4500) = 4187.690955
Q = 4187.690955 / 4500
Q = 0.9306 kW
Therefore, the highest rate of heat transfer allowed is 0.9306 kW
. Convert 350 lb* ft In Joules?
Answers
Answer:
474.536 Joules
Explanation:
Use a converter machine.
1lb = 1.355818 j
350 = 1.355818 j *350
= 474.536
Which of the following is not a step in a building’s life cycle?
evaluation
maintenance
demolition
resource extraction
Answers
Answer:
resource extraction
Explanation:
common sense
Equipment such as phones, fax machines, and computers are all examples of the_____ element of the business environment.
Answers
The equipment aspect of the corporate environment is exemplified by tools like phones, fax machines, and computers.
Equipment includes items like computers, vehicles, and processing equipment. They are tangible because they have a physical form, as opposed to intangible assets, which don't (such patents, trademarks, or copyrights), which are the things required for a specific activity or purpose. When we say "the set of goods you require for a certain function," we mean "the uncountable noun equipment," such as tools or clothing: New sleeping bags and a small refrigerator are among the camping supplies we've purchased. They are the most fundamental methods for employing leverage (or mechanical advantage) to increase force that are currently understood. Simple machines include the wheel and axle, inclined plane, lever, wedge, pulley, and screw basic machines
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Why is not adjust the depth of cut in the center of work piece in facing turning?
Answers
Answer:
I am not sure it's confusing
I need to solve for d
Answers
Answer:
it's not included
Explanation:
plz exact ur explain
Answer:
si amor
Explanation:
Hoiykñjdnlklbutrk
A runner ran a 600 m race in 2 min 17 seconds. Calculate his average speed in m/sec.
Answers
Anyone got a pc that can run 240 fps? Around like 1,300 dollars that can run 240 fps on fortnite whoever answers and gives me a good pc I will give brainliest
Answers
Answer:
What do u need it for just gaming or for streaming and other things
Which Australian standard endorses drawing symbols and shape codes for RC drawings?
Answers
Answer:
1100
Drafting Standard AS 1100
AS1100 is the drawing standard that is used within Australia. It defines every aspect of the drawing. AS1100 provides a standard that (if followed by all companies), allows for a clarity, understanding and uniformity across all drawings generated nation wide.
The Australian standard that endorses drawing symbols and shape codes for RC drawing is; AS1100
Understanding the Use of CodesDifferent countries have their different codes and drawing standards that serve as a basis for drawings. For most of Europe, it is Euro Code while for US it is ACI Code and for UK, it is BS Code.
Other codes of countries could be BS 5950 which is steel code for the UK and BS 8110 which is concrete code for the UK. Whereas, for Australia it is called AS1100 Code for drawing symbols and shape codes.
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Can someone help me plz!!! It’s 23 points
Answers
Answer:
0.00695 A
Explanation:
µ represents \(10^{-6}\). Multiply this by 6,950.
1. Why does condensed water drip from the air-conditioning system?
Answers
Answer:
Your answer is: Evaporator, the condensed water drip comes from something called the evaporator. When warm air touches the cold coil ( or the cold pipe) the water vapor condensed while the cold coil absorbs.
Explanation:
Hope this helped : )
the control unit directs the movement of electronic signals between the memory and the alu. true or false
Answers
False, the control unit does not directly control the movement of electronic signals between the memory and the ALU.
The control unit in a computer is responsible for coordinating and controlling the activities of the various components of the CPU (Central Processing Unit). However, the control unit itself does not directly handle the movement of electronic signals between the memory and the ALU (Arithmetic Logic Unit).
The control unit primarily focuses on fetching instructions from memory, decoding them, and executing them by coordinating the operations of other components such as the ALU and registers. It controls the flow of data and instructions within the CPU, but the actual movement of electronic signals between the memory and the ALU is typically handled by dedicated pathways and buses within the computer's architecture.
These pathways ensure that data and instructions can be transferred efficiently and accurately between the memory and the ALU as directed by the control unit.
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a) Water strider bug is supported on surface of the pond by surface tension acting along interface between water and bug's legs. Determine the minimum length of this interface needed to support the bug let the weight of the bug is 10−4 N
b) Repeat part (a) if surface tension were to support aperson weighing 750N.
Answers
4.
error occurs when the measurement we think we see is not the
measurement being indicated by the instrument.
A. Positioning
B. Operator bias
C. Instrument
D. Observational
Answers
Answer: observational error
Explanation:
An Error occurs when the measurement is actually done by the Observational approach. Thus, the correct option is D.
What is an ideal method of measurement?The ideal methods of measurement are subdivided into two methods: They are as follows:
Direct measurement method.Indirect measurement method.The Direct measurement method involves the utilization of instruments such as micrometers, vernier calipers, coordinate measuring machines, etc. In this method, the unknown quantity is directly compared with the standard quantity.
In the Indirect measurement method, the physical parameter of the quantity is measured with the help of the direct method.
Positioning of the required quantity, operator-biased measurement, and the utilization of instruments for estimating the measurement of any unknown value are generally favored in order to eliminate the chances of errors.
Therefore, an Error occurs when the measurement is actually done by the Observational approach. Thus, the correct option is D.
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Which of these factors would help the environment?
a. Betty drinks only bottled water instead of soda.
b. Greg changes all of the light bulbs in the office to energy efficient bulbs.
c. John keeps his off topic conversations down to 10 minutes a day.
d. Doug turns the air conditioning down to cool the office during the hot summer months.
Please select the best alswer from the choices provided
A
B
D
Answers
Answer:
B. Greg changes all of the light bulbs in the office to energy efficient bulbs.
Explanation:
Energy efficient bulbs help you to reduce the carbon footprint of your office / house and last up to 12 times as long as traditional bulbs, using less electricity to emit the same amount of light as a traditional bulb.
Answer:
b
Explanation:
It is okay to speed 7-10 mph over the posted speed limit.
The police cannot write speeding tickets for that.
Answers
Answer:
it is okay depending on how u drive
to cool a given room it is necessary to supply 4 ft3 /s of air through an 8-in.-diameter pipe. approximately how long is the entrance length in this pipe?
Answers
To cool a given room it is necessary to provide 4 ft³/s of air through an 8-inches diameter pipe, for this Entrance length in this pipe = 17.7 ft
Q = 4ft³/s
Diameter = D = 8 inches
Entrance length in this pipe = \(l_{e}\) = ?
By using flow rate formula:
V = Q/A
V= Q/ π/4*D²
= 4ft³/s / π/4 (8/12 ft)²
V= 11.5 ft/s
Thus, with ν = 1.57 x 10⁻⁴ft²/s (value from table)
Re = VD/ν
Re = 11.5 ft/s (8/12 ft)/1.57x10⁻⁴ft²/s
Re = 48,800 > 4000 (based on the criteria)
so, the flow is turbulent
Hence,
\(l_{e} / D\) = \(4.4 R_{e}^{1/6}\)
\(l_{e}\) = 4.4 (48,800)\(^{1/6}\) (8/12)
\(l_{e}\) = 17.7 ft
Entrance Length of an 8-inch diameter pipe = 17.7 ft
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Describe the extent of their own responsibility. When to act on their own innitiative to find , clarify and evaluate information , and to whom they should report if they have problems they cannot resolve in the work place
Answers
Answer:
whatsthe question choices
What is computer programming
Answers
Answer:
Computer programming is where you learn and see how computers work. People do this for a living as a job, if you get really good at it you will soon be able to program/ create a computer.
Explanation:
Hope dis helps! :)
QUESTION:
Which statement is true about portable fire extinguishers?
POSSIBLE ANSWERS:
OAir-pressurized water extinguishers put out electrical fires.
Dry chemical, sodium bicarbonate extinguishers put out most fires.
Dry chemical, mono ammonium phosphate extinguishers put out flammable liquid fires.
OCarbon dioxide extinguishers put out wood fires.
Submit Answer
Skip Question
Review/Edit Your Answer
Answers
Until emergency assistance arrives, portable fire extinguishers can put out or manage a fire.
When should Portable fire extinguishers be used?The use of portable fire extinguishers can put out or contain a fire until emergency assistance is received.
Utilize portable units exclusively for small flames or fires that are still in the early stages because their discharge times are often only a few seconds. Make a plan for a getaway. Avoid breathing in the extinguishing agent and smoke by keeping low to the ground.
Only use a portable fire extinguisher when a fire is small, restricted to a single area, and not made up of extremely flammable materials. If the fire becomes out of control, leave the premises right away and get assistance.
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explain how does optimism and open-minded can help engineers succeed at their jobs
Answers
Optimism and open-mindedness can greatly contribute to the success of engineers in their jobs by fostering a positive and adaptable mindset.
Firstly, **optimism** enables engineers to approach challenges with a positive attitude and belief in their ability to find solutions. It helps them maintain motivation, resilience, and a proactive approach in the face of obstacles. Optimistic engineers are more likely to persevere through difficulties, think creatively, and explore multiple avenues to solve complex problems.
Secondly, being **open-minded** allows engineers to embrace new ideas, perspectives, and technologies. Open-minded engineers are willing to consider different approaches, listen to diverse viewpoints, and learn from others. This mindset promotes collaboration, encourages knowledge sharing, and facilitates continuous learning and growth. It also enables engineers to adapt to changing circumstances, embrace innovation, and discover novel solutions.
By combining optimism and open-mindedness, engineers can create an environment conducive to exploration, innovation, and effective problem solving. These qualities promote a positive work culture, enhance teamwork, and contribute to the successful execution of engineering projects.
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Consider the permutation on {1,2,3,4,5,6,7,8} given in cycle
notation by (3 1 4)∘(7 6 1 8 4).
Where is the number 8 sent by this permutaton?
Answers
The number 8 is sent to the number 4 by this permutation.
In the given permutation, (3 1 4)∘(7 6 1 8 4), the composition of two cycles is performed. Let's break it down step by step:
1. The first cycle, (3 1 4), implies that 3 is sent to 1, 1 is sent to 4, and 4 is sent back to 3. Any other numbers not mentioned in this cycle remain unchanged.
2. The second cycle, (7 6 1 8 4), means that 7 is sent to 6, 6 is sent to 1, 1 is sent to 8, 8 is sent to 4, and 4 is sent back to 7. Again, any numbers not explicitly mentioned in this cycle remain unaffected.
To determine where the number 8 is sent, we need to follow the path of the permutation. Initially, 8 is sent to 4 in the second cycle. Then, according to the first cycle, 4 is sent back to 3. Therefore, the number 8 is ultimately sent to 3 by this permutation.
In summary, the number 8 is sent to 3 by the permutation (3 1 4)∘(7 6 1 8 4).
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