摘要: http://www.lydsy.com/JudgeOnline/problem.php?id=2876 (题目链接) 题意 在满足约束条件$${\sum_{i=1}^ns_ik_i(v_i-v_i')^2=E}$$ 求$${min\sum_{i=1}^n\frac{s_i}{v_i}}$$ Sol 阅读全文
posted @ 2017-02-06 09:59 MashiroSky 阅读(1077) 评论(4) 推荐(5) 编辑