摘要: 题目链接:C. Yet Another Number Sequence 题目大意:令 \(F_1=1,F_2=2,F_n=F_{n-1}+F_{n-2}(n\ge 3),A_i(k)=F_i\times i^k\) ,求 \(\sum_{i=1}^{n} A_i(k)\) 。 \(n\leq 10^ 阅读全文
posted @ 2020-11-12 23:42 with_hope 阅读(124) 评论(0) 推荐(0)