55 lines
2.4 KiB
Text
55 lines
2.4 KiB
Text
---
|
|
id: geo-pri
|
|
title: "Geometry Primitives"
|
|
author: Benjamin Qi
|
|
description: Basic setup for geometry problems and introduction to line sweep.
|
|
---
|
|
|
|
## Primitives
|
|
|
|
You should know basic operations like cross product and dot product. For platinum specifically, you should be fine as long as you know how to code **convex hull**.
|
|
|
|
### Tutorial
|
|
|
|
- [CPC.12](https://github.com/SuprDewd/T-414-AFLV/tree/master/12_geometry)
|
|
- basic geometry
|
|
- convex hulls
|
|
- polygon area
|
|
- point in polygon
|
|
- CPH 29 (Geometry), 30.1, 30.2 (Sweep line algorithms)
|
|
- [TopCoder - Basic Geometry Concepts](https://www.topcoder.com/community/competitive-programming/tutorials/geometry-concepts-basic-concepts/)
|
|
- [CF - Point Class](https://codeforces.com/blog/entry/48122)
|
|
- [C++ - std::complex](https://codeforces.com/blog/entry/22175)
|
|
- [cp-algo - Geometry: "Elementary Operations"](https://cp-algorithms.com/)
|
|
- [vlecomte - Geometry Handbook](https://codeforces.com/blog/entry/59129)
|
|
- [My Templates](https://github.com/bqi343/USACO/tree/master/Implementations/content/geometry%20(13)/Primitives)
|
|
|
|
### Problems
|
|
|
|
- Template Testing
|
|
- [yosupo: Sort Points by Arg](https://judge.yosupo.jp/problem/sort_points_by_argument)
|
|
- [Kattis Segment Distance](https://open.kattis.com/problems/segmentdistance)
|
|
- [Kattis Segment Intersection](https://open.kattis.com/problems/segmentintersection)
|
|
- [Kattis Point in Polygon](https://open.kattis.com/problems/pointinpolygon)
|
|
- [Kattis Polygon Area](https://open.kattis.com/problems/polygonarea)
|
|
- [Kattis Max Collinear](https://open.kattis.com/problems/maxcolinear)
|
|
- Misc
|
|
- [Arpa & Geo](http://codeforces.com/problemset/problem/851/B)
|
|
- [Tell Your World](http://codeforces.com/problemset/problem/849/B)
|
|
- [Gleb & Pizza](http://codeforces.com/problemset/problem/842/B)
|
|
- [Birthday Cake](https://open.kattis.com/problems/birthdaycake)
|
|
- [Racing Off Track](https://open.kattis.com/contests/acpc17open/problems/racingofftrack)
|
|
- [TopCoder Watchtower](https://community.topcoder.com/stat?c=problem_statement&pm=2014&rd=4685)
|
|
|
|
## Sweep Line
|
|
|
|
### Tutorial
|
|
|
|
- CPH 30
|
|
- [TopCoder Line Sweep](https://www.topcoder.com/community/competitive-programming/tutorials/line-sweep-algorithms/)
|
|
|
|
### Problems
|
|
|
|
- [Cow Steepchase II (Silver)](http://www.usaco.org/index.php?page=viewproblem2&cpid=943)
|
|
- :|
|
|
- [Kattis Closest Pair](https://open.kattis.com/problems/closestpair2)
|