当前你的浏览器版本过低,网站已在兼容模式下运行,兼容模式仅提供最小功能支持,网站样式可能显示不正常。
请尽快升级浏览器以体验网站在线编辑、在线运行等功能。

建议使用的浏览器:

谷歌Chrome 火狐Firefox Opera浏览器 微软Edge浏览器 QQ浏览器 360浏览器 傲游浏览器

6185:Covering

题目描述
Bob's school has a big playground, boys and girls always play games here after school.

To protect boys and girls from getting hurt when playing happily on the playground, rich boy Bob decided to cover the playground using his carpets.

Meanwhile, Bob is a mean boy, so he acquired that his carpets can not overlap one cell twice or more.

He has infinite carpets with sizes of $1\times 2$ and $2\times 1$, and the size of the playground is $4\times n$.

Can you tell Bob the total number of schemes where the carpets can cover the playground completely without overlapping?
输入解释
There are no more than 5000 test cases.

Each test case only contains one positive integer n in a line.

$1 \leq n \leq 10^{18}$
输出解释
For each test cases, output the answer mod 1000000007 in a line.
输入样例
1
2
输出样例
1
5
来自杭电HDUOJ的附加信息
Recommend liuyiding

该题目是Virtual Judge题目,来自 杭电HDUOJ

源链接: HDU-6185

最后修改于 2020-10-25T23:29:07+00:00 由爬虫自动更新

共提交 0

通过率 --%
时间上限 内存上限
5000/2500MS(Java/Others) 32768/32768K(Java/Others)