线段和矩形相交 POJ 1410

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线段和矩形相交 POJ 1410

// 线段和矩形相交 POJ 1410 // #include <bits/stdc++.h> #include <iostream> #include <cstdio> #include <cstdlib> #include <algorithm> #include <vector> #include <math.h> using namespace std; #define LL long long typedef p…

POJ 1410--Intersection(判断线段和矩形相交)

Intersection Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 16322 Accepted: 4213 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)…

判断线段和直线相交 POJ 3304

// 判断线段和直线相交 POJ 3304 // 思路: // 如果存在一条直线和所有线段相交,那么平移该直线一定可以经过线段上任意两个点,并且和所有线段相交. #include <cstdio> #include <cstring> #include <iostream> #include <algorithm> #include <map> #include <set> #include <queue> #includ…

poj 1410 Intersection (判断线段与矩形相交判线段相交)

题目链接 Intersection Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 12040 Accepted: 3125 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:…

POJ 1410 Intersection （线段和矩形相交）

题目: 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 segment doe…

简单几何(线段相交) POJ 1410 Intersection

题目传送门题意:一个矩形和一条线段,问是否有相交分析:考虑各种情况.坑点:给出的矩形的两个端点是无序的,还有线段完全在矩形内也算相交 /************************************************ * Author :Running_Time * Created Time :2015/10/27 星期二 13:17:49 * File Name :POJ_1410.cpp ******************************************…

POJ 1410 Intersection（线段相交&&推断点在矩形内&&坑爹）

Intersection 大意:给你一条线段,给你一个矩形,问是否相交. 相交:线段全然在矩形内部算相交:线段与矩形随意一条边不规范相交算相交. 思路:知道详细的相交规则之后题事实上是不难的,可是还有个坑点就是题目里明明说给的是矩形左上角跟右下角的点,但实际上不是,须要又一次推断一下...真坑. struct Point { double x, y; } A, B, C, D; struct Line { Point a, b; } L; int n; double xmult(Point p1…