Thread: printing a heart help

Code:

#include <stdio.h>
#include <math.h>
int main()
{
int n, i, j;
double dist, dist2;
printf("How big is your heart?\n");
scanf("%d", &n);

for(i = 0; i < n; i++)
{
for(j = 0; j < 4*n+1; j++)
{
dist = sqrt(pow(i-n,2)+pow(j-n,2));
dist2 = sqrt(pow(i-n,2)+pow(j-3*n,2));

if(dist < n + 0.5 || dist2 < n + 0.5)
printf("*");//logic for semicircles -- use distance formulas
else
printf(" ");//logic for sloping lines

} 
printf("\n"); //newline
}

int numspaces = 1;
int numstars = 4*n-1;
for(i = 1; i <= 2*n; i++)
{
for(numspaces=1;numspaces<=i;numspaces++)
printf(" ");
for(numstars = 4*n-1;numstars>=i;numstars--)
printf("*");

printf("\n");
}
system("pause");
return 0;
}

Yea the format was messed up when i pasted it

*********
********
********
********
********
********
********

I would have to do all that just to fix this one parameter. The print out just as the extra triangle as shown in orange.

Originally Posted by dubbin240

Yea the format was messed up when i pasted it

*********
********
********
********
********
********
********

I would have to do all that just to fix this one parameter. The print out just as the extra triangle as shown in orange.

You don't have to do much more. You already have a for loop for printing the left-side spaces and the center stars. But, your center stars go out too far, so you need to reduce how far it goes (remember you can use a && in your for loop condition) and then add another for loop to add the right-side spaces.

Or you can attempt to go about drawing it another way.

Because the width of the longest line in the heart isn't entered by the user, and because the number of rows isn't entered either, the drawing becomes more difficult.

If I were you, I wouldn't use the distance formula, at all. Calculate the center point of the horizontal lines, and work from that.

Nevertheless:

This functions draws the bottom of the heart. I tried tweaking your code, but it was too frustrating.

Code:

/* the code that draws the top of the heart, is up here, and gives us the value of j.

  width = (j-3);
  for(rows = width; rows > 0; rows-=2) {
    spaces = (width - rows) + 2;
    stars = width - spaces;
    spaces /= 2;
    while(spaces-- > 0)
      putchar(' ');
    while(stars-- > 0 )
      putchar('*');
    putchar('\n');
  }
    putchar('\n');
  (void) getchar();
  return 0;
}

The only slight imperfection in the heart now, is the longest line, which is repeated. Also (and part of the above imperfection), is the lack of a top row on the heart, that is above (and would have two shorter lines of stars), the one being shown now.

Code:

if(dist < n + 0.5 || dist2 < n + 0.5)

Kindly use explicit type casting...

By the way, too many loops....
It can be done in three loops as well....
Or maximum of four....