hdu 5839(三维几何)】的更多相关文章

Special Tetrahedron Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 328    Accepted Submission(s): 130 Problem Description Given n points which are in three-dimensional space(without repetition)…
HDU 5839 Special Tetrahedron 题目链接http://acm.hdu.edu.cn/showproblem.php?pid=5839 Description Given n points which are in three-dimensional space(without repetition). Please find out how many distinct Special Tetrahedron among them. A tetrahedron is ca…
链接: http://acm.hdu.edu.cn/showproblem.php?pid=4617 Weapon Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 65535/32768 K (Java/Others) Total Submission(s): 224    Accepted Submission(s): 178 Problem Description Doctor D. are researching for a…
Problem Description Doctor D. are researching for a horrific weapon. The muzzle of the weapon is a circle. When it fires, rays form a cylinder that runs through the circle verticality in both side. If one cylinder of rays touch another, there will be…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5839 在一个三维坐标,给你n个点,问你有多少个四面体(4个点,6条边) 且满足至少四边相等 其余两边不相邻. 暴力4重循环,但是在第3重循环的时候需要判断是否是等腰三角形,这便是一个剪枝.在第4重循环的时候判断4点是否共面 (叉乘), 5或者6边相等就+1,4边相等就判断另外两边是否相交就行了. 赛后过的,觉得自己还是太菜了. //#pragma comment(linker, "/STACK:10…
Special Tetrahedron 题目连接: http://acm.hdu.edu.cn/showproblem.php?pid=5839 Description Given n points which are in three-dimensional space(without repetition). Please find out how many distinct Special Tetrahedron among them. A tetrahedron is called Sp…
Special Tetrahedron 题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=5839 Description Given n points which are in three-dimensional space(without repetition). Please find out how many distinct Special Tetrahedron among them. A tetrahedron is called Sp…
题目大意: 就是根据它给的程序的要求,不断平移,缩放,旋转三维的点,最后计算出点的位置 这里主要是要列出三种转换方式的齐次矩阵描述 平移translate tx ty tz1 0 0 00 1 0 00 0 1 0tx ty tz 1缩放scale a b ca  0  0  00  b  0  00  0  c  00  0  0  1绕任意轴(过原点)旋转(注意要把轴向量归一化,否则点在旋转轴上时有问题) 这里是以(x,y,z)向量指向我们人的方向逆时针旋转 d 的弧度rotate x y…
三维树状数组模版.优化不动了. #include <set> #include <map> #include <stack> #include <cmath> #include <queue> #include <cstdio> #include <string> #include <vector> #include <iomanip> #include <cstring> #inclu…
War on Weather Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 494    Accepted Submission(s): 270 Problem Description After an unprovoked hurricane attack on the south shore, Glorious Warrior ha…