Pascal & C are 2 of the languages students must know to compete in the USACO, the Olympiad of this
As someone who has dabbled in programming contests a bit 
myself, ... After programming in C/C++ for several years, I recently fell in love with 
.... Olympiad in Informatics (IOI) allows only C, C++ and Pascal (or maybe it .... 
contests mostly students, which choose language they know better.