hdu2085 核反应堆

 1 #include<stdio.h>

 2 int main()

 3 {

 4     int i,n;

 5     __int64 high,low,k;

 6     while(scanf("%d",&n),n+1)

 7     {

 8         for(high=1,low=i=0;i<n;++i)

 9         {

10             k=high;

11             high=3*high+2*low;

12             low=k+low;

13         }

14         printf("%I64d, %I64d\n",high,low);

15     }

16     return 0;

17 }