2018年5月21日
Codeforces 515C 题解(贪心+数论)(思维题)
摘要： 题面 传送门:http://codeforces.com/problemset/problem/515/C Drazil is playing a math game with Varda. Let’s define f(x)f(x)for positive integer x as a produ 阅读全文
posted @ 2018-05-21 18:34 birchtree 阅读(213) 评论(0) 推荐(0)
Codeforces 475D 题解(二分查找+ST表)
摘要： 题面:传送门:http://codeforces.com/problemset/problem/475/D Given a sequence of integers a1, …, an and q queries x1, …, xq on it. For e... 阅读全文
posted @ 2018-05-21 13:06 birchtree 阅读(426) 评论(0) 推荐(0)