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…
On a plane there are n points with integer coordinates points[i] = [xi, yi]. Your task is to find the minimum time in seconds to visit all points. You can move according to the next rules: In one second always you can either move vertically, horizont…
题目如下: On a plane there are n points with integer coordinates points[i] = [xi, yi]. Your task is to find the minimum time in seconds to visit all points. You can move according to the next rules: In one second always you can either move vertically, ho…