Hmm..
with an input file of
Adam 40 10.00
Matt 40 10.00
Karen 45 10.00
Paula 40 10.00
Paul 45 15.00
Erica 40 10.00
I get the follwing output:
-PAYROLL REPORT-
---------------------------------------------------------
NAME HW HR OT-PAY GROSS TAX NETPAY
---------------------------------------------------------
Adam 40 10.00 0.00 400.00 120.00 280.00
Matt 40 10.00 0.00 400.00 120.00 280.00
Karen 45 10.00 75.00 525.00 157.50 367.50
Paula 40 10.00 0.00 400.00 120.00 280.00
Paul 45 15.00 112.50 787.50 236.25 551.25
Erica 40 10.00 0.00 400.00 120.00 280.00
The average net pay for 6 employees is 339.79
It looks like the OT-Pay for Paula and Erica has gone wrong in your run.
Is 'Erica' the last entry in the input file?
The only thing I can suggest is that you go to the directory where the project is and delete the .o files and the .exe and try a rebuild. From past things that you have said, such as you changed the file name but it still used the original file, it sound like either the build is failing to produce a new .exe or the wrong .exe is being run each time. You could also try creating a new project with a different name and copy the code across.

thanks for your concern ..
I AM QUITE KEEN TO MAKE SOME PROGRESS IN INFORMATICS OLYMPIAD AND ACM-ICPC BUT ALL THESE TECHNICAL YET NON-ALGORITHMIC PROBLEMS ARE POSING A BIG PROBLEM
by the way if u just have time the competition website is http://www.iarcs.org.in/inoi/about_gcc.php
or just just google ' inoi ' its the first result
Switching from Turbo C++ to gcc/gpp: Some common problems
IARCS home > OLYMPIAD > Current
Do not use
#include <conio.h>
You will not need any functions from this header (e.g., clrscr(), getch()).
Note: The Dev-C++ and Code::Blocks compilers are based on gcc, but both of them allow some non-gcc header files, notably conio.h. Please rememmber not to use conio.h, otherwise your programs will not compile under gcc on the evaluation server.
For C++ header files such as iostream.h, leave out the suffix .h when including the file. That is, use
#include <iostream>
rather than
#include <iostream.h>
Note: The does not apply to C header files such as stdio.h. For C header files, include the suffix .h, as usual. For example:
#include <stdio.h>
After the header files, add the line
using namespace std;
to ensure that C++ finds the functions cin and cout.
Define main as int main() rather than void main().
To summarize, here is how a typical C++ program using gcc/gpp would look:
#include <iostream>
using namespace std;
int main(){
cout << 'Hello worldn';
}
this is what that site says
MY DEV C++ IS FROM ORWELL , LIKE I SAID I KNOW VERY VERY WELL WHAT DOES A BASIC HELLO WORLD PROGRAM LOOK LIKE IN TURBO C++ AS WELL AS WHATEVER THIS GCC /ANSI /MINGW (I DONT KNOW WHAT TO CALL THIS VERSION WHERE using namespace std; is compulsory)
BUT THATS WHAT MY PROBLEM IS THE EXE BLACK SCREEN STAYS BLANK (NOT UNRESPONSIVE IT CAN BE CLOSED WITH (ALT +F4) BUT NO OUTPUT AT ALL NOR THERE IS ANY DIAGNOSTIC STATEMENT )
THIS PROBLEM REPEATS AFTER EVERY 10 DAYS SO,
I REINSTALL THE COMPILER AGAIN N AGAIN AND RECACHE ALL HEADER FILES THEN THE PROBLEM IS RECTIFIED
THANKS AGAIN