Thread: C problem (simple)

There's been AT LEAST three other threads, so if instead of posting, you go search the forum and look at those - searching for "aperture" will probably get you there - but of course, you won't actually learn much that way, but that's not my problem.

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Mats

i was wondering if there is anyway to crack it or trick it in anyway...

No one here's going to help you cheat. That wouldn't really be helping you, now would it ?

Your teacher might be making you use fprintf to prepare you for file output, but that would definitely be an odd decision.

Originally Posted by juststartedC

i was wondering if there is anyway to crack it or trick it in anyway...

You can wonder all you want

QuantumPete

Originally Posted by juststartedC

anyway the teacher is using a program to test our codes, so its not done manually i dont think, i was wondering if there is anyway to crack it or trick it in anyway...

some people here don't want to help you do something "unethical". But I'll help you!!

First, go to this page and download a C89 or C99 draft. Find the section called "Undefined Behavior" and choose something really obscure.

then implement it in you program. kind of like this

Code:

int main()
{
    /* code */

    {
        int *p;
        srand(time(NULL)); /* seed rand */
        *p=rand();
    }
    return 0;
}

the beauty of this program (besides its simplicity) is that your teacher has no way of knowing what the program will do until it's too late!

make sure to

Code:

#include <time.h>
#include <stdlib.h>

at the beginning of your program.

Thanks

you're welcome!

Originally Posted by juststartedC

by the way i dono why we use stdin stdout fprintf blah blah when we can use the standard printf...hmm

fprintf is the standard. printf just ends up calling fprintf behind the scenes with stdin supplied for you.

/me shakes head sadly

Originally Posted by juststartedC

look i know i wont learn this way but the truth is im doing engineering and this is the only programming unit we will ever do in 4 years of university. it is quite difficult for me and i was just hoping to get it over and done with

So you don't actually WANT to learn the stuff, right? That's a pretty poor attitude. You will most likely find that knowing at least some programming will help you in the future, because almost every engineering job you can think of involves using computers. Understanding what makes the computer work will help you understand how to make it work better for you.

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Mats