Write the profram with function prototype

Question

1.00/5 (1 vote)

See more:

initialized array A of numbers with floating point and integer variable V are given as local variable in main(). array consists of 9 elements value of integer variable V should be entred from the kaybord.

Write the progrem with function prototype, calling and definition, function should return the average of the elemnets of array A which have position index that is greater than V

function must take arguments print result on the screen from main() function.

What I have tried:

C++

int main()
{
    int V;
    float Array_A[9] = { 4.6, 2.9, 3.6, 1.0 ,2.3 ,7.8 ,4.4 ,5.7 ,1.4 };
    
    cout << "please enter a Variable V " << endl;
    cin>> V ;
    
    cout << "Your variable is : "<<V << endl;
}

float average(float Array_A[], int sizeOfarray)
{

    float sum = 0;
    
    for (int x = 0; x < sizeOfarray; x++)
    {
        sum += Array_A[x];
    }
    
    return sum / (float)sizeOfarray;

}

Posted 2-Jun-21 10:41am

Ma Boutique

Updated 2-Jun-21 11:23am

Richard MacCutchan

v2

Add a Solution

Comments

Richard MacCutchan 2-Jun-21 16:56pm

You need to use the value of V to get the average, as specified in paragraph 2 above.

jeron1 2-Jun-21 16:57pm

Do you have a specific question?

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2021-06-02T11:23:00

A function prototype is the signature of the function - the return type, name, and parameters list - terminated with a semicolon instead of having the function body.
It is written before the first call to the function so that the system "knows" what the correct signature is and so that the actual function body can be anywhere in the file. Without it, you would get an "undefined function" error when you tried to call it before the actual definition and it isn't always possible to move it above all calls, especially when two mutually recursive functions are created.

Very often, they are stored in a #include file.

Then you need to read your instructions carefully - they are pretty explicit that V needs to be passed to the function so that it only calculates the average for elements with an index higher than the value passed.