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Equivalently, all its interior angles are less than 180 degrees. Polygon is simple if its boundary doesn't cross itself. I will present two algorithms for each problem: one for arbitrary simple polygon, and one for strictly convex polygon, that has better complexity.
It aims to introduce the Polygon platform to the new problem setters, and guide them through the basic steps on creating a new problem from scratch. In the post, I have explained the concepts and practices that a problem setter need to know in order to use Polygon to prepare problems.
Beside the minimal set of commands, Polygon supports extensive math mode using MathJax. For writing a formula inside a paragraph, use the $formula$ (inline style) syntax, and for writing a formula in an individual paragraph, use the $$formula$$ (display style) syntax.
Contains my solutions to various competitive coding problems - wolfib/competitive-coding-solutions
7 Dec 2011 - Now you may download testlib and polygon documentation from Polygon installation. 17 Jul 2010 - Supported contests and PDF-statements. 3 Nov 2009 - Released new version. Tags and problem filters supported. Also many other smaller fixes done. 8 Mar 2009 - Use public issue tracker to post bug or feature request.
A guide for creating Codeforces problems on Polygon. The problem creator generates test case inputs using a test case script, generator, and (optional) validator. When a contest participant submits his or her solution, a checker can be used to verify if their program's output has valid syntax.
Codeforces. Programming competitions and contests, programming community. → Pay attention
