I'm a master's student of bioinformatics in Prague, working under Pavel Veselý and teaching practicals in my free time.
In summer semester, I'm teaching Algoritmy a datové struktury 1 ‒ that's probably what you came here for.
In general, you can write an email to user janci in domain kam.mff.cuni.cz.
Regarding my other projects, please try to find specific email adresses associated with them first.