摘要: #include <bits/stdc++.h> using namespace std; #define ll long long const double eps = 1e-8;//精度 const double inf = 1e20; const double pi = acos(-1.0); 阅读全文
posted @ 2020-12-02 21:13 hh13579 阅读(91) 评论(0) 推荐(0) 编辑