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1 year ago

Before using the data type string, the program must include the header file ____.

1 answer:

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Hello <span>Enriqueliz5443</span><span>

Answer: Before using the data type string, the program must include the header file string

Hope this Helps!
-Chris</span>

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Write a function string middle(string str) that returns a string containing the middle character in str if the length of str is

Katen [24]

Answer:

function getMiddle(s) {

return s.length % 2 ? s.substr(s.length / 2, 1) : s.substr((s.length / 2) - 1, 2);

}

// I/O stuff

document.getElementById("submit").addEventListener("click", function() {

input = document.getElementById("input").value;

document.getElementById("output").innerHTML = getMiddle(input);

});

Explanation:

// >>> is an unsigned right shift bitwise operator. It's equivalent to division by 2, with truncation, as long as the length of the string does not exceed the size of an integer in Javascript.

// About the ~ operator, let's rather start with the expression n & 1. This will tell you whether an integer n is odd (it's similar to a logical and, but comparing all of the bits of two numbers). The expression returns 1 if an integer is odd. It returns 0 if an integer is even.

// If n & 1 is even, the expression returns 0.

// If n & 1 is odd, the expression returns 1.

// ~n & 1 inverts those two results, providing 0 if the length of the string is odd, and 1 if the length of the sting is even. The ~ operator inverts all of the bits in an integer, so 0 would become -1, 1 would become -2, and so on (the leading bit is always the sign).

// Then you add one, and you get 0+1 (1) characters if the length of the string is odd, or 1+1 (2) characters if the length of the string is even.

6 0

2 years ago

3.34 LAB: Mad Lib - loops in C++

Ganezh [65]

Answer:

A Program was written to carry out some set activities. below is the code program in C++ in the explanation section

Explanation:

Solution

CODE

#include <iostream>

using namespace std;

int main() {

string name; // variables

int number;

cin >> name >> number; // taking user input

while(number != 0)

{

// printing output

cout << "Eating " << number << " " << name << " a day keeps the doctor away." << endl;

// taking user input again

cin >> name >> number;

}

Note: Kindly find an attached copy of the compiled program output to this question.

7 0

2 years ago

Mark and John are developing a program using Python. They name a variable 24_hour_mart, but then recognize that this name violat

77julia77 [94]

Answer:

Option 2: Variable names can not begin with a number.

Explanation:

As given Mark and John named a variable as 24_hour_mart while writing a program in python.

While it is forbidden to name a variable starting with any digit, only alphabets (capital and smaller) and underscore can be the first letter of the variable name.

Moreover, by considering the other options given:

Variable name can include the underscore (_) between the words. It is used instead of spaces that are not allowed.
There is no upper limit for variable length, it can be of any reasonable length and more than 10 characters say 11 or 12 are reasonable.

There is no lower limit for variable length, it can be any reasonable length , even it can be of 1 character.

Variables named in python language must not be the keywords as they are reserved for other purposes.

i hope it will help you!

3 0

2 years ago

Isabella's manager has asked her to write up a _____ that describes their company's interest in developing a custom software sol

kakasveta [241]

Answer:

Request for information (RFI)

Explanation:

Request for Information is a business process document that contains information about an organization's capability to deliver solutions to a potential client. The RFI document will contain information that will help for decision making by clients. Other similar business documents in this line are Request for tender (RFT), request for quotation (RFQ).

6 0

2 years ago

In cell F29, use an IF function to display the correct Shipping Charge, based on the amount of the Discounted Total. If the Disc

sladkih [1.3K]

Answer:

= IF(B29 >= B28,0,(0.05 * B29))

Explanation:

Given

Free Shipping Minimum = B28

Shipping Charge = F29

Required

Write a formula in F29 to calculate the total shipping charge based on the condition in the question.

To solve this, the following assumption needs to be made.

It'll be assumed that cell B29 contains the value for Discounted Total.

So,

Discounted Total = B29

The condition in the question says

1. If Discounted Total (B29) is greater than or equal to the Free Shipping Minimum (B29), then Shipping Charge (F29) is 0

This can be represented as

If(B29 >= B28)

F29 = 0

2. Else (i.e. if (1) above is false), Shipping Charge (F29) equals 5% of Discounted Total (B29)

This can also be represented as

F29 = 0.05 * B29

Writing the formula in (1) and (2) together in Excel format;

= IF(B29 >= B28, 0, (0.05 * B29))

The above formula will give the desired result based on the condition in the question.

Take for instance;

Free Shipping Minimum = B28 = 28

Discounted Total = B29 = 30

Since 30 >= 28, the value of F29 will be 0 because it satisfies condition 1.

But if

Free Shipping Minimum = B28 = 30

Discounted Total = B29 = 28

Since 28 < 30, the value of F29 will be 5% of 28 = 1.4 because it satisfies condition 2

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2 years ago