/* mandel.c  ... compile with gcc -o mandel mandel.c */
#include <stdio.h> 
#include <time.h>  

int main() {
  int x, y, k, counter;
  char *b = " .:,;!/>)|&IH%*#";
  float r, i, z, Z, t, c, C;
  time_t begin, end;
  counter = 0;

begin = time (NULL);

while(counter < 1000){
    for (y=30; puts(""), C = y*0.1 - 1.5, y--;) {
     for (x=0; c = x*0.04 - 2, z=0, Z=0, x++ < 75;) {
      for (r=c, i=C, k=0; t = z*z - Z*Z + r, Z = 2*z*Z + i, z=t, k<112; k++)
       if (z*z + Z*Z > 10) break;
        printf ("%c", b[k%16]);
      }
    }
counter++;
}

end = time (NULL);

printf ("%d count in %ld secs \n", counter, end - begin);

}