摘要: 题目地址 https://loj.ac/problem/6156 #include <bits/stdc++.h> const long long mod = 1e9+7; const double ex = 1e-10; #define inf 0x3f3f3f3f using namespace 阅读全文
posted @ 2017-09-06 20:44 HITLJR 阅读(205) 评论(0) 推荐(0) 编辑