/* power_of2.c  print power of 2 tree                             */
/*              compile gcc -m64 -o power_of2 power_of2.c         */
/*              power_of2 > power_of2.out  edit to power_of2e.out */

#include <stdio.h>

int main(int argc, char *argv[])
{
  int n;
  long n2;
  double nf;

  n2=1L;
  nf=1.0;
  for(n=0; n<64; n++)
  {
    printf("%19ld %2d %58.56f\n", n2, n, nf);
    n2 = n2*2L;
    nf = nf/2.0;
  }
}