摘要：#includeusing namespace std;const int M = 1e5+10 ;const double pi = acos(-1.0) ;int n ;double sx , sy ;//源点double X[M] , Y[M] ;double minn = 1e18 , ma... 阅读全文

摘要：1 #include <cstdio> 2 #include <cstring> 3 #include <algorithm> 4 #include <cmath> 5 #include <vector> 6 #include <iostream> 7 #include <cassert> 8 9 阅读全文