1266 - Points in Rectangle PDF (English) Statistics Forum Time Limit: 2 second(s) Memory Limit: 32 MB As the name says, this problem is about finding the number of points in a rectangle whose sides are parallel to axis. All the points and rectangl…
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…
PDF Page Coordinates (page size, field placement, etc.) AcroForm, Basics, Automation Page coordinates are used to add fields and annotations to a page, move fields and annotations, resize page boundries, locate words on a page, and for any other oper…
Smallest Bounding Rectangle Given the Cartesian coordinates of n(>0)2-dimensional points, write a program that computes the area of their smallest bounding rectangle (smallest rectangle containing all the given points). Input The input le may contain…
Given N axis-aligned rectangles where N > 0, determine if they all together form an exact cover of a rectangular region. Each rectangle is represented as a bottom-left point and a top-right point. For example, a unit square is represented as [1,1,2,2…