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3 years ago

Which type of loop is best if you do not know how many times you need the loop to run?

1 answer:

Alex3 years ago

5 0

While: the loop must repeat until a certain "condition" is met. If the "condition" is FALSE at the beginning of the loop, the loop is never executed. The "condition" may be determined by the user at the keyboard. The "condition" may be a numeric or an alphanumeric entry. This is a good, solid looping process with applications to numerous situations.
while:int ctr = 1;
while (ctr < = 20)
{
cout<< ctr++ <<"\n";
}



HOPE i HELPED! brainliest? :D

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Researchers conducted a 'natural experiment' to examine the effects of on-site food services on weight gain among first-year col

anygoal [31]

Answer:

On-site food services is the INDEPENDENT variable and the weight gain is the DEPENDENT variable

Explanation:

Variables can be dependent or independent. An independent variable is the one used by the researcher to test its degree of influence on the dependent variable. The dependent variable, as the name implies, relies on changes in the independent variable to effect its own changes.

In the question, it is obvious that weight gain among the first year students is dependent on on-site food services

7 0

3 years ago

Write a program that helps a young student learn to make change. Use the random number generator to generate change amounts betw

erastovalidia [21]

Answer:

#include <iostream>

#include <stdlib.h>

using namespace std;

int main()

{

srand(time(0));

int coins = rand()%99 + 1;

int temp = coins;

cout<<"Enter the coins needed to make $0."<<coins<<"?"<<endl<<endl;

int a, b, c, d;

cout<<"Quarters? ";

cin>>a;

cout<<"Dimes? ";

cin>>b;

cout<<"Nickles? ";

cin>>c;

cout<<"Pennies? ";

cin>>d;

int quarters = coins/25;

coins = coins%25;

int dimes = coins/10;

coins = coins%10;

int nickles = coins/5;

coins = coins%5;

int pennies = coins/1;

if(((a*25) + (b*10) + (c*5) + (d*1))==temp)

{

cout<<"That's correct"<<endl;

if(a!=quarters || b!=dimes || c!=nickles || d!=pennies)

{

cout<<"The optimized solution is "<<endl;

}

else

{

cout<<"Not correct"<<endl;

cout<<"The solution is "<<endl;

}

cout<<"\tQuarters: "<<quarters<<endl;

cout<<"\tDimes: "<<dimes<<endl;

cout<<"\tNickles: "<<nickles<<endl;

cout<<"\tPennies: "<<pennies<<endl;

return 0;

}#include <iostream>

#include <stdlib.h>

using namespace std;

int main()

{

srand(time(0));

int coins = rand()%99 + 1;

int temp = coins;

cout<<"Enter the coins needed to make $0."<<coins<<"?"<<endl<<endl;

int a, b, c, d;

cout<<"Quarters? ";

cin>>a;

cout<<"Dimes? ";

cin>>b;

cout<<"Nickles? ";

cin>>c;

cout<<"Pennies? ";

cin>>d;

int quarters = coins/25;

coins = coins%25;

int dimes = coins/10;

coins = coins%10;

int nickles = coins/5;

coins = coins%5;

int pennies = coins/1;

if(((a*25) + (b*10) + (c*5) + (d*1))==temp)

{

cout<<"That's correct"<<endl;

if(a!=quarters || b!=dimes || c!=nickles || d!=pennies)

{

cout<<"The optimized solution is "<<endl;

}

else

{

cout<<"Not correct"<<endl;

cout<<"The solution is "<<endl;

}

cout<<"\tQuarters: "<<quarters<<endl;

cout<<"\tDimes: "<<dimes<<endl;

cout<<"\tNickles: "<<nickles<<endl;

cout<<"\tPennies: "<<pennies<<endl;

return 0;

}

Explanation:

Use the built-in rand function to generate a random coin.
Get all the required values for quarters, dimes, nickles and pennies and store them in variables.
Check if the coins give a value of temp, then answer is correct and the values of user will be added.
Optimum solution is displayed If it does not matches with the optimum solution. Display that the answer is wrong along with solution.

6 0

3 years ago

Reusable modules, which are represented in the structure chart as rectangles with vertical lines on both sides, may often appear

Molodets [167]

Answer:

The answer to this question is the option "A".

Explanation:

In this question, the answer is option "A" which is the library. The term library stands in programming language for library made available across implementations of a programming language. In the programming section library is a collection of pre-compiled modules that a program can use and modules are stored in object format. We can reuse these modules in our program. So the answer to this question is the library.

8 0

3 years ago

Software that organizes, manages, and processes business data, such as data concerned with inventory, customers, and vendors, is

adoni [48]

Answer:

c) data management software

Explanation:

Software that organizes, manages, and processes business data, such as data concerned with inventory, customers, and vendors, is called data management software.

5 0

4 years ago

The _________ attack exploits the common use of a modular exponentiation algorithm in RSA encryption and decryption, but can be

coldgirl [10]

Answer:

The answer is "timing".

Explanation:

The time attack would be a security vulnerability that enables attackers that identify computer systems or network security issues by analyzing the period of the program's reaction to multiple levels.
It is used in both RSA encryption and decryption of the modular exponentiation method but could be modified for just about any system not seem running in a fixed period.

6 0

3 years ago