Thread: One program does nested loops while the other doesn't. Why?

So I'm a noob in C programming. Just started looking at loops. I will post the program that's in my lecture first and then one I made and they both have next for loops. But the second one (mine) isn't functioning like the first. Why is it? Sorry if it's really obvious.

Code:

#include <stdio.h>


main(void) 


 {
     int i, j, k, m=0;


     for (i=1; i<=5; i+=2)  
         { 
         for (j=1; j<=4; j++)  
             {
             k = i+j;
             printf("i=%3d, j=%3d, k=%3d\n", i, j, k);
             } 
         
         } 
 }

And my program is:

Code:

#include <stdio.h>
main ()
{
int count=3,times=1;
for (times;times<=5;times+=1){
for (count;count<=99;count+=3)
	{
	printf ("%d ",count);
	}
}
}

Originally Posted by laserlight

Declare main as returning an int. You should indent your code properly, e.g.,

Code:

#include <stdio.h>

int main(void)
{
    int i, j, k, m = 0;

    for (i = 1; i <= 5; i += 2)
    {
        for (j = 1; j <= 4; j++)
        {
            k = i + j;
            printf("i=%3d, j=%3d, k=%3d\n", i, j, k);
        }
    }
    return 0;
}

Code:

#include <stdio.h>

int main(void)
{
    int count = 3, times = 1;
    for (times; times <= 5; times += 1)
    {
        for (count; count <= 99; count += 3)
        {
            printf("%d ", count);
        }
    }
    return 0;
}

Anyway, in what way do you mean "the second one (mine) isn't functioning like the first"? Clearly, they are different.

One thing to note is that just writing:
times;[/code]
evaluates the variable and does nothing. Normally, we would either leave it out because the variable already has the desired value:

Code:

for (; times <= 5; times += 1)

or we will set the desired value:

Code:

for (times = 1; times <= 5; times += 1)

Hey, sorry. I got it. I should close this thread now. Hm. I know they're different, but the basic function I'm looking for is a loop within a loop. I got it to work by having

Code:

for (count=3;count<=99;count+=3)

I removed the initial value when declaring count. That way it loops again with count again equals to 3. Thanks!

How do I close this thread?