HDU_2212

其实printf输出4个数就行。。

Problem Description
A DFS(digital factorial sum) number is found by summing the factorial of every digit of a positive integer. 

For example ,consider the positive integer 145 = 1!+4!+5!, so it's a DFS number.

Now you should find out all the DFS numbers in the range of int( [1, 2147483647] ).

There is no input for this problem. Output all the DFS numbers in increasing order. The first 2 lines of the output are shown below.
 

 

Input
no input
 

 

Output
Output all the DFS number in increasing order.
 

 

Sample Output
1 2 ......
 1 #include <cstdio>
 2 #include <ctime>
 3 int fun(int n)
 4 {
 5    int s=1;
 6    for(int i=2;i<=n;i++)
 7       {
 8          s=s*i;
 9       }
10    return s;   
11 }
12 int main()
13 {
14    int s,n,r;
15    for(int i=1;i<=40585;i++)
16       {
17          s=0;n=i;
18          while(n)
19             {
20                r=n%10;
21                n=n/10;
22                s=s+fun(r); 
23             }
24          if(s==i)
25             printf("%d\n",i);  
26       }
27 }


 

posted @ 2013-06-15 20:31  瓶哥  Views(154)  Comments(0Edit  收藏  举报