Fibonacci Again
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Fibonacci Again
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
源代码:
#include<iostream>using namespace std;int main(){ int n,arr[50],i;//找出规律// arr[0]=7;arr[1]=11;// for(i=2;i<50;i++){// arr[i]=arr[i-1]+arr[i-2];// arr[i]=arr[i]%3;// }// // for(i=0;i<50;i++){ // if(arr[i]%3==0)cout<<"yes"<<" ";// else cout<<"no"<<" ";// cout<<i<<" "<<arr[i]<<endl; // } while(cin>>n ){ if(n%4==2)cout<<"yes"<<endl; else cout<<"no"<<endl; } return 0;}
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