摘要: 区间不重的ST表 https://discuss.codechef.com/questions/116821/segprod-editorial $\sum\limits_{i=0}^\infty \dfrac{x^i}{i!}=e^x$ so inverse series for it is $e 阅读全文
posted @ 2018-07-19 09:57 z1j1n1 阅读(636) 评论(0) 推荐(0) 编辑