杭电2097

 1 #include<stdio.h>
 2
 3 int main()
 4 {
 5     int jz(int n,int r);
 6     int t,x,n;
 7     while(~scanf("%d",&n)&&n)
 8     {
 9         x=n/1000+n/100%10+n/10%10+n%10;
10         //printf("x=%d\n",x);
11         t=jz(n,16);
12         //printf("t1=%d\n",t);
13         if(t!=x)
14         {
15             printf("%d is not a Sky Number.\n",n);
16             continue;
17         }
18         t=jz(n,12);
19         //printf("t2=%d\n",t);
20         if(t!=x)
21             printf("%d is not a Sky Number.\n",n);
22         else
23             printf("%d is a Sky Number.\n",n);
24     }
25 }
26
27 int jz(int n,int r)
28 {
29     int i=0,s=0,t=1;
30     while(t<=n)
31         t*=r;
32     t/=r;
33     while(t!=1)
34     {
35         s+=n/t%r;
36         t/=r;
37     }
38     s+=n%r;
39     return s;
40 }