Area of Simple Polygons Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 3412 Accepted: 1763 Description There are N, 1 <= N <= 1,000 rectangles in the 2-D xy-plane. The four sides of a rectangle are horizontal or vertical line segment…
题目链接:POJ 1410 Description You are to write a program that has to decide whether a given line segment intersects a given rectangle. An example: line: start point: (4,9) end point: (11,2) rectangle: left-top: (1,5) right-bottom: (7,1) Figure 1: Line se…
题目大意:给你一个矩形的左上角和右下角的坐标,然后这个矩形有 N 个隔板分割成 N+1 个区域,下面有 M 组坐标,求出来每个区域包含的坐标数. 分析:做的第一道计算几何题目....使用叉积判断方向,然后使用二分查询找到点所在的区域. 代码如下: ==========================================================================================================================…