Hi CF. I would like to invite everyone to take part in the TAP this Saturday at 1pm GMT-5. This contest is the preliminary contest for the Argentinian team. The mirror will be handled by the Red de Programación Competitiva, a group that host many contest over the year as training for the icpc Latin America regional.
You can register in the following link http://registro.redprogramacioncompetitiva.com/contests . Crate and account and then enroll in the activity of this Saturday. The system used is BOCA, I think is a Brazilian system that I think is very intuitive but if you need help you can test in the past activities. For example the link http://redprogramacioncompetitiva.com/contests/2017/09/
The problems aren't available now but you can download them from this link.
Only Latin American team compete, so will be interesting to see flags from different countries in the scoreboard.