Thread: Nested loop frustration

Hi guys, I'm having trouble with the following code: first problem is, i'm really not very good at mathematics and the equation to represent the spaces eludes me.
What am i doing wrong please. I've visited this link where salem was helping another individual and it clarified a few things in terms of the structure but i'm still a little mystified at the output i get. Compile it and you see the weird structure.
thank you.

Code:

/* pyramid.c output:  *
                     ***
                    *****
                   *******
                  *********

*/



#include <stdio.h>
int main(void){

int r,c,s, ht=5;

for (r = 1; r <=ht; r++){ //number of rows
   for (s = 1; s <=(ht-(r/2)); s++) // determine spaces
      printf(" ");

   for (c = 1; c <=r; c++)//determine num of charaters to place
     printf("%c", '*');

printf("\n");
}
getchar();
return 0;
}