Re: Programming project help
- From: Barry Schwarz <schwarzb@xxxxxxxx>
- Date: Tue, 04 Nov 2008 18:58:42 -0800
On Tue, 4 Nov 2008 18:39:10 -0800 (PST), "\"The Master\""
<jordanvdf@xxxxxxxxx> wrote:
Hey, I am working on a project where a program has to read in a
collection of exam scores ranging in value from 0 ? 100. The program
should count and print the number of outstanding scores (90-100) the
number of satisfactory scores (60-89) the number of unsatisfactory
scores (0-59) and the number of invalid scores (less than 0 or greater
than 100).
The program should print output starting at the top of the page with
your name followed by some column headings to identify the output.
example:
Outstanding Satisfactory Unsatisfactory Invalid
90 89
44 212
98 76
35 -8
This is what I have for my source code so far. But I am having
problems getting the data to display correctly.
#include <stdio.h>
int main(void)
{
// Programmer Jordan Van der Flier
// November 2008
// Categorizes a list of grades, calculates, max, min, and avg
FILE *in; // delcares a file type, assigns name 'in'
Do you really think this type of comment is in any way helpful.
int grade;
int max, min, avg;
int count = 0;
int outstanding, satisfactory, unsatisfactory, invalid;
// associates 'in' with file location
in = fopen("i:\\numbers.dat", "r"); // file
location,
"r" means read
This is why you should not use // comments for code you intend to post
to a newsgroup. Anyone who might have been tempted to compile your
code will be turned off by the large number of manual edits required.
You should always check that fopen succeeds before attempting to use
the FILE* it returns.
fscanf(in, "%d", &grade); // scans from
external source
You should also check that fscanf succeeds. It returns a value to let
you do just that.
printf(" Outstanding Satisfactory Unsatisfactory
Invalid ");
printf("\n Grade Grade
Grade Grade");
while(! feof(in)){ // while 'not' at
End Of File
if(90 <= grade && grade <= 100){ // grades
90-100
outstanding = grade;
Your problem statement said to print the count of grades, not the
grades themselves.
printf("\n %d", outstanding);
}
else if(60 <= grade && grade <= 89){ // grades
60-89
satisfactory = grade;
printf(" %d", satisfactory);
You omitted the \n in this and the following printf calls.
}
else if(0 <= grade && grade <= 59){ // grades
0-59
unsatisfactory = grade;
printf(" %d", unsatisfactory);
}
else if(0 > grade || grade > 100){ // grades
less than 0 or
greater than 100
invalid = grade;
printf(" %d", invalid);
}
else {}
Is there any possibility that this else can be reached?
fscanf(in, "%d", &grade);
}
fclose(in);
return(0);
You are missing a } to mark the end of main.
--
Remove del for email
.
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