This is a repository of problem statements and test data for contests I was a judge for. Problems which I wrote or co-wrote are marked with a *.

Links called “data” contain the full problem package: generators, validators, graders, all judge solutions, and LaTeX sources of statements/editorials.

BxOI 2018

(Informal) editorial and data here

beCP 2018

Try the problems (partial score not correctly handled), data

Geometry Special 2018

Try the problems, editorial en, data

  • sledding*: en
  • pens*: en
  • polar*: en
  • paint*: en

beCP 2016-2017 (only my problems)

Try the problems: 2016 2017 (partial score not correctly handled)