使用if -else-if语句猜一个随机数

#include <stdio.h>
#include <stdlib.h>

int main(void)
{
   int magic; /* magic number */
   int guess; /* user's guess */

   magic = rand(); /* generate the magic number */

   printf("Guess the magic number: ");
   scanf("%d", &guess);

   if (guess == magic) {
      printf("** Right ** ");
      printf("%d is the magic number", magic);
   }
   else if (guess > magic)
      printf("Wrong, too high");
   else printf("Wrong, too low");
   return 0;
}