The 2019 Asia Nanchang First Round Online Programming Contest H. The Nth Item-CSDN博客

网站介绍:文章浏览阅读472次。For a series FFF:F(0)=0,F(1)=1F(n)=3∗F(n−1)+2∗F(n−2),(n≥2)\displaystyle \begin{gathered} F(0) = 0,F(1) = 1\\ F(n) = 3*F(n-1)+2*F(n-2),(n \geq 2) \end{gathered} F(0)=0,F(1)=1F(n)=3∗F(n−1)+2∗F(n−2),(n..._the 2019 asia nanchang first round online programming contestf