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sasho
1 day ago
11

Given: an int variable k, an int array current Members that has been declared and initialized, an int variable memberID that has

been initialized, and a boolean variable isAMember. Write code that assigns true to isAMember if the value of memberID can be found in current Members, and that assigns false to isAMember otherwise. Use only k, currentMembers, memberID, and isAMember.
Computers and Technology
1 answer:
Natasha_Volkova [946]1 day ago
4 0

Answer:

The following C++ program is displayed below. No output is produced as per the requirements stated in the question.

#include <iostream>

using namespace std;

int main() {    

   // declaration and initialization of integer variables

   int k, memberID = 12, nMembers=5;

   bool isAMember;    

   // declaration and initialization of integer array

   int currentMembers[] = {12, 34, 56, 78, 90};    

   for(k=0; k<nMembers; k++)

   {

       if(memberID == currentMembers[k])

       {

           // if the member is found in the array, the loop exits using the break statement

           isAMember = true;

           break;

       }

       else

           isAMember = false;

   }    

   return 0;

}

Explanation:

The program starts with the declaration and initialization of integer variables, followed by the definition of an array that holds the identifiers of all members.

The Boolean variable is declared, although it isn't initialized at this point.

int k, memberID = 12, nMembers=5;

bool isAMember;

int currentMembers[] = {12, 34, 56, 78, 90};

Subsequently, the array containing the members' IDs is searched for the specific member ID. This action is performed using a for loop along with an if-else condition within that loop.

If the member ID exists in the array, the variable isAMember is set to true; otherwise, it is marked as false.

If isAMember is set to true, the break statement allows for the loop to be exited early.

for(k=0; k<nMembers; k++)

   {

       if(memberID == currentMembers[k])

       {

           isAMember = true;

           break;

       }

       else

           isAMember = false;

 }

The break statement is utilized since any other IDs in the array won't match the given member ID and thus, the variable isAMember would incorrectly be initialized to false even if the member ID is present in the array. Therefore, it's crucial to terminate the loop as soon as the matching member ID is located.

This program can be tested by utilizing different member ID values and varying the size of the array.

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You would like the user of a program to enter a customer’s last name. Write a statement thaUse the variables k, d, and s so that
Rzqust [962]

Answer:

1st question:

Utilize k, d, and s as variables to read three distinct inputs: an integer, a float, and a string, respectively. Print these variables in reverse order on one line, ensuring exactly one space separates each. On a second line, print them in their original sequence, with one space in between.

Solution:

In Python:

k = input()  # prompts user to enter k, an integer value

d = input()  # prompts user to provide d, a float value

s = input()  # prompts user to input s, a string

print (s, d, k)  # displays the variable values in reverse order

print (k, d, s)# displays the variable values in the original order

In C++:

#include <iostream>    // for input-output functions

using namespace std;   // to identify objects like cin and cout

int main() {    // start of main function

  int k;   // declare an int variable for the integer value

  float d; //  declare a float variable for the float value

  string s;   //  declare a string variable for string input

  cin >> k >> d >> s;    // reads the values for k, d, and s

  cout << s << " " << d << " " << k << endl;     // displays the variables in reverse order

  cout << k << " " << d << " " << s << endl;   } // displays the variables in their original order

Explanation:

2nd question:

You would want users of your program to enter a customer's last name. Formulate a statement that prompts the user with "Last Name:" and assigns the input to a string variable named last_name.

Solution:

In Python:

last_name = input("Last Name:")

# The input function captures input from the user and assigns it to last_name variable

In C++:

string last_name;  // declare a string variable called last_name

cout<<"Last Name: ";  // prompts user to input last name through this message Last Name:

cin>>last_name; // gathers and assigns the provided value to the last_name variable

The provided programs along with their outputs are included.

6 0
1 month ago
A half-life is the amount of time it takes for a substance or entity to fall to half its original value. Caffeine has a half-lif
8_murik_8 [927]

Answer:

// C++ program.

#include <bits/stdc++.h>

using namespace std;

// main function

int main() {

  // variable

float n;  

cout<<"Enter the initial value:";

//User input

cin>>n;

//Variables for measurements at 6, 12, and 18 hours

float hours_6, hours_12, hours_18;  

//Set floating-point precision

cout << fixed;

    cout << setprecision(6);

 //Calculate caffeine amounts after 6, 12, 18 hours

hours_6 = n / 2.0;

hours_12 = hours_6 / 2.0;

hours_18 = hours_12 / 2.0;

//Display results

cout<<"After 6 hours: "<<hours_6<<"mg"<<endl;

cout<<"After 12 hours: "<<hours_12<<"mg"<<endl;

cout<<"After 18 hours: "<<hours_18<<" mg"<<endl;

return 0;

}

Explanation:

The program reads input from the user and sets the output precision to six decimal places. The caffeine amount after 6 hours is half the initial input. At 12 hours, it is half the 6-hour value, and after 18 hours, it is half the 12-hour value.

Output:

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After 12 hours: 25.000000 mg

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1 month ago
How to write a program that prompts the user to input two POSITIVE numbers — a dividend (numerator) and a divisor (denominator).
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Answer:

num1 = int(input("Numerator: "))

num2 = int(input("Denominator: "))

if num1 < 1 or num2<1:

     print("Input must be greater than 1")

else:

     print("Quotient: "+str(num1//num2))

     print("Remainder: "+str(num1%num2))

Explanation

The next two lines prompt the user for two numbers

num1 = int(input("Numerator: "))

num2 = int(input("Denominator: "))

The next if statement checks whether either or both inputs are not positive

if num1 < 1 or num2<1:

     print("Input must be greater than 1")-> If true, this print statement will run

If the conditions are not met, the program prints the quotient and remainder

else:

     print("Quotient: "+str(num1//num2))

     print("Remainder: "+str(num1%num2))

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Amiraneli [955]
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Of these two types of programs:a. I/O -bound b. CPU -bound which is more likely to have voluntary context switches, and which is
oksian1 [849]

Answer:

For I/O-bound applications, we require voluntary context switches.

For CPU-bound applications, non-voluntary context switches are necessary.

Explanation:

A voluntary context switch happens when a process relinquishes control of the CPU because it needs a resource that isn't currently available (like waiting for I/O). This occurs quite frequently during regular system operations, typically initiated by a call to the sleep() function.

A non-voluntary context switch occurs when the CPU is forcibly taken from a process, possibly due to the expiration of its time slice or preemption by a higher-priority task. This is enacted through direct calls to low-level context-switching functions like mi_switch() and setrunnable().

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