poj1269---直线位置关系

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POJ 2398 - Toy Storage 点与直线位置关系

Toy Storage Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 5439 Accepted: 3234 Description Mom and dad have a problem: their child, Reza, never puts his toys away when he is finished playing with them. They gave Reza a rectangular box…

POJ 1269 Intersecting Lines (判断直线位置关系)

题目链接:POJ 1269 Problem Description We all know that a pair of distinct points on a plane defines a line and that a pair of lines on a plane will intersect in one of three ways: 1) no intersection because they are parallel, 2) intersect in a line becau…

POJ 1269 Intersecting Lines（判断两直线位置关系）

题目传送门:POJ 1269 Intersecting Lines Description We all know that a pair of distinct points on a plane defines a line and that a pair of lines on a plane will intersect in one of three ways: 1) no intersection because they are parallel, 2) intersect in…

Intersecting Lines---poj1269(求两直线的位置关系)

题目链接:http://poj.org/problem?id=1269 题意:给你两条直线上的任意不同的两点,然后求两条直线的位置关系,如果相交于一点输出该点坐标; #include<iostream> #include<algorithm> #include<math.h> #include<string.h> #include<stdio.h> #include<map> #include<vector> #inclu…

判断两条直线的位置关系 POJ 1269 Intersecting Lines

两条直线可能有三种关系:1.共线 2.平行(不包括共线) 3.相交. 那给定两条直线怎么判断他们的位置关系呢.还是用到向量的叉积例题:POJ 1269 题意:这道题是给定四个点p1, p2, p3, p4,直线L1,L2分别穿过前两个和后两个点.来判断直线L1和L2的关系这三种关系一个一个来看: 1. 共线. 如果两条直线共线的话,那么另外一条直线上的点一定在这一条直线上.所以p3在p1p2上,所以用get_direction(p1, p2, p3)来判断p3相对于p1p2的关…

Intersecting Lines （计算几何基础+判断两直线的位置关系）

题目链接:http://poj.org/problem?id=1269 题面: Description We all know that a pair of distinct points on a plane defines a line and that a pair of lines on a plane will intersect in one of three ways: 1) no intersection because they are parallel, 2) interse…