http://www.bnuoj.com/bnuoj/problem_show.php?pid=4067 美丽的花环 Time Limit: 1000ms Case Time Limit: 1000ms Memory Limit: 65536KB Special Judge 64-bit integer IO format: %lld Java class name: Main Submit Status Font Size: + - 学校的草坪上最近种植了一些漂亮的花卉,所有的花…
链接:https://www.nowcoder.com/acm/contest/141/J来源:牛客网 Eddy has graduated from college. Currently, he is finding his future job and a place to live. Since Eddy is currently living in Tien-long country, he wants to choose a place inside Tien-long country…
题意:如题 思路:离散.将所有交点求出来,相当于将多变形的边切成了很多条元边,对每条元边,有两种情况 在圆内,答案加上此边长 在圆外,答案加上此边相对于圆心的"有向转弧" #include <bits/stdc++.h> using namespace std; #ifndef ONLINE_JUDGE #include "local.h" #endif #define X first #define Y second #define pb(x) pus…