Thread: Explain me this program.line by line and how its executed.

Code:

#include <stdio.h>
int main()
 {
     double m=15.6, n=12.9;
     int x=6, y;


     x = x % (int)n;    
     printf("x=%d\n", x);


     y = m + n;    
     printf("y=%d\n", y);


     return 0;
 }

2.

Code:

int main()
    {
         double x=2.5, y=4.7;
         int a=7, b;


         printf("%4.2f\n", (x + a % 3 * (int)(x+y) % 2 / 4) );


        a=2;  b=3; x=3.5; y=2.5;    
        printf("%4.2f\n", ((float)(a+b)/2 + (int)x % (int)y) );


        return 0;
    }

here in the first program, i am unable to understand the value of x.
given x=x%(int)n

hence x=0 right?

and what does %4.2f in the second program mean?



It'd be better if u would explain how the each line executed.

here in the first program, i am unable to understand the value of x.
given x=x%(int)n

hence x=0 right?

Explain to us how you arrived at that answer.

and what does %4.2f in the second program mean?

Printf format strings - Cprogramming.com
Check out "precision" and "width" specifiers.

It'd be better if u would explain how the each line executed.

No, it would not be better to just give you the answer. Figuring it out on your own is how you learn, and that is in your best interest.

Also, this looks like C code. Why is it posted on the C++ board?

hey matticus! cool down! if you know the answer , just answer it. you'd have no any losses if you just help others.yeah figuring it out is how i learn but i tried and tried and couldnt come find out why so i posted here. I wouldnt just simply post damnit!

hey matticus! cool down!
...
I wouldnt just simply post damnit!

you'd have no any losses if you just help others.

You're absolutely right. That is why I come here - I use whatever time I can spare to come here and help others.

However, doing work for you would not, by my definition, be helping. In fact, it would hinder the learning process.

Not being able to figure something out is fine. But in order to get assistance, you should show some effort in trying to figure it out yourself.

I don't know how much effort you've put in, but when you say, "Explain this code line by line", it appears to me that you haven't put much effort in.

Instead, if you say, "I think it should be this for that reason, but the results aren't matching my expectations", then it would clearly show that you are indeed putting in some effort and you'd get much better responses.

Hence the first line in my previous post. Explain how you arrived at the answer, so we can see you're trying to think it through, and we can help straighten out any problems you might be having in trying to understand the material.

Why are there so many people learning programming these days that obviously don't seem to like... programming?

i have already got the answer thanks guys! specially matticus!