This week we are having the Brazilian ICPC Summer School, a camp for people from Latina America who are training for ICPC.

On the second day I made an educational contest with a combinatorics theme. More specifically, the topics are: combinatorics, probability and expected value.

It is now available at the Gym section here. Statements are in both Portuguese and English, and there is also a sketch of the solutions in Portuguese.

I invite you to take a look at the problems. Hopefully you can have fun and also learn something new :)