Vsetci zaujemcovia o sutazenie v exotickych jazykoch, kuknite sem: http://www.spoj.pl/
Ide o velmi kvalitnu stranku obsahujucu hromadu dobrych zadani a zacitujem: "support for more than 30 programming languages and compilers, including C, C++, Pascal, JAVA, C#, Perl, Python, Ruby, Haskell, Ocaml, and esoteric languages."