随笔分类 -  S-数学-计算几何

摘要：叉乘的性质 1 #include<cstdio> 2 #include<cstring> 3 #include<iostream> 4 #include<algorithm> 5 using namespace std; 6 7 int n,x[406],y[406]; 8 int ans; 9 1 阅读全文

摘要：求凸包裸题 1 #include<cstdio> 2 #include<cstring> 3 #include<iostream> 4 #include<algorithm> 5 #include<vector> 6 #include<cmath> 7 #define dd double 8 usi 阅读全文