小猴摘桃.c

C语言小程序。有白鸡问题

#include <stdio.h>
main()
{
 int day,x1,x2;
 day=9;
 x2=1;
 while(day>0)
  { x1=(x2+1)*2;
    x2=x1;
    day--;
  }
 printf("total=%d",x1); 
}