またHelloプログラム

#include 
void print_word(unsigned w)

{

  int i, c;

  for (i = 0; i < 6 && (c = (w & 0x1f)) != 0x1f; i++, w >>= 5) {

    putchar(65 + c);

  }

}
main()

{

  print_word(0x3ee5ac87);

  putchar('\n');

}

#include 
char g[] = "pmmfi";
main()

{

  char *p = g + 4;

  while (g <= p) {

    (*p)--;

    write(1, p, 1);

    p--;

  }

  putchar('\n');

}