HDU 1021[Fibonacci Again]规律

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1021

题目大意:首两项为7,11的斐波那契数列。若第n项能被3整除,输出yes,否则输出no

关键思想:模三加法情况有限,找规律。

代码如下:

#include <iostream>
using namespace std;

int main(){
	int n;
	while(cin>>n)
	if(n%8==2||n%8==6)cout<<"yes"<<endl;
	else cout<<"no"<<endl;
	return 0;
}

  

时间: 2024-12-19 15:02:48

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