摘要：
For a series FF: \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 阅读全文
摘要：
John is not only a magic master but also a shuffling master. Famous though he is, he likes interacting with his fans by playing a game with his fantas 阅读全文
摘要：
This is an era of team success, but also an era of heroes. Throughout the ages, there have been numerous examples of using the few to defeat the many. 阅读全文
Pangu Separates Heaven and Earth(签到题）(The 2019 Asia Nanchang First Round Online Programming Contest)
摘要：
Long long ago, the sky and the earth were not separated, and the universe was chaotic. There was a giant named Pangu who slept for eighteen thousand y 阅读全文