I need help solving this algorithm. Thanks Data File DB Create an inputfile name

Question

I need help solving this algorithm.

Thanks

Data File DB

Create an inputfile named "inputFile.txt" (use "Note Pad") that contains the following data. Be sure that the last line of the file is empty (i.e., not even a space character). In other words, after entering the second line of data, press the <ENTER> key, save the file, then exit the editor.

5 10 6 9
23 7 13 40

Implement the following algorithm

Create & Open inputFile
Create & Open outputFile
Read first line of data into variables a, b, c, d
DOWHILE !EOF
     Create a unique formula that uses the variables a, b, c, & d. For example,
     value = (a*a) + b - c + d
     Output value into outputFile
     Read each line of data into variables a, b, c, d
ENDDO
Close inputFile
Close outputFile

Post the source code (embed the code in your response; DO NOT ATTACH THE C++ FILE).

Explanation / Answer

Here is Your program That you need

#include <iostream>
#include <fstream>
#include <assert.h>
using namespace std;
int main()
{
    ifstream file("inputFile.txt");
    int a,b,c,d,value;
    assert (!file.fail( ));
    do
    {
        file >> a;
        file >> b;
        file >> c;
        file >> d;
        value = (a*a) + b - c + d;
        ofstream file1("outputFile.txt",ios::out | ios::app );
        if (file1.is_open())
        {
            file1 << value;
            file1 << " ";
            file1.close();
        }
        cout<<a<<" "<<b<<" "<<c<<" "<<d<<" "<<value<<endl;
    }while(!file.eof());
    file.close();
    return 0;
}

Output:-

Original :-

5 10 6 9 38

23 7 13 40 563

My Output:

5 10 6 9 38

23 7 13 40 563

23 7 13 40 563

because of ' ' character at the end of line. we use eof so it will take 1 extra character.

Don't ever use .eof() or .good() as loop condition. It almost always produces buggy code (as it does in this case);

So There is Only Single solution with do, while and eof in this case is to remove that extra space from file.

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