Intersection Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 9996 Accepted: 2632 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)
1,将城市地图拆分等距拆分为矩形 数据结构如图: 2.查看高德JS API (点是否在多边形内)核心代码: a=[114.069564,22.545774]; b=[ [114.067595,22.552082], [114.077322,22.552082], [114.077322,22.543099], [114.067595,22.543099], ]; c=true lf: function(a, b, c) { var d = a[0]; a = a[1]; var f = !1,
Given a two-dimensional array of positive and negative integers, a sub-rectangle is any contiguous sub-array of size 1 x 1 or greater located within the whole array. The sum of a rectangle is the sum of all the elements in that rectangle. In this pro
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
See you~ Time Limit: 5000/3000 MS (Java/Others) Memory Limit: 65535/32768 K (Java/Others)Total Submission(s): 4729 Accepted Submission(s): 1515 Problem Description Now I am leaving hust acm. In the past two and half years, I learned so many kno
C. New Year and Domino They say "years are like dominoes, tumbling one after the other". But would a year fit into a grid? I don't think so. Limak is a little polar bear who loves to play. He has recently got a rectangular grid with h rows and
Stars Time Limit: 5000/2000 MS (Java/Others) Memory Limit: 32768/65536 K (Java/Others) Total Submission(s): 111 Accepted Submission(s): 54 Problem Description Yifenfei is a romantic guy and he likes to count the stars in the sky.To make the problem
题目 Link 就是查询矩形内有多少个点. 分析 二维树状数组维护就好了,. Code #include <bits/stdc++.h> const int maxn = 1000 + 131; struct Point { int x, y; }; int Num[maxn][maxn]; bool Vis[maxn][maxn]; int lowbit(int x) { return x&(-x); } int Sum(int x, int y) { int ret = 0; in