Fibonacci Again之解题思路

Problem Description
There are another kind of Fibonacci numbers: F(0) = 7, F(1) = 11, F(n) = F(n-1) + F(n-2) (n>=2).
 

Input
Input consists of a sequence of lines, each containing an integer n. (n < 1,000,000).
 

Output
Print the word "yes" if 3 divide evenly into F(n).

Print the word "no" if not.
 

Sample Input
 
   
0 1 2 3 4 5
 

Sample Output
 
   
no no yes no no no
解题思路:   如果采用递归,对于小的数据n可以实现,而当n<1000000时,我们发现找不到一个数据类型来储存f(n)。 因此当我们尝试列出n从0-10时便能发现规律;对n%==2时便能被三整除。于是程序也不难写出。
代码如下:
#include
int main()
{
    int n;
    while(scanf("%d",&n)!=EOF)
    {
        if(n%4==2)
            printf("yes\n");
        else
            printf("no\n");
    }
    return 0;

}



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