Simple!
Code:
#include <stdio.h>
int main(void)
{
int i;
for (i = 0; i < 1; i++) /* required for loop */
{
putchar('*'); putchar('*'); putchar ('*');
putchar(' ');
putchar('*'); putchar('*'); putchar ('*');
putchar(' ');
putchar('*'); putchar('*'); putchar ('*');
putchar(' ');
putchar('\n');
putchar('*'); putchar('*');
putchar(' '); putchar(' ');
putchar('*'); putchar('*');
putchar(' '); putchar(' ');
putchar('*'); putchar('*');
putchar(' '); putchar(' ');
putchar('\n');
putchar('*');
putchar(' '); putchar(' '); putchar(' ');
putchar('*');
putchar(' '); putchar(' '); putchar(' ');
putchar('*');
putchar(' '); putchar(' '); putchar(' ');
putchar('\n');
}
return 0;
}
Moral of this story, read the sticky concerning homework threads and make an attempt first.
Can you even work out the program in some form of pseudocode? Obviously, loops will be involved, what are the starting and ending values, etc.?