Accomodation

One of the largest and closest hotel in downtown is:
https://www.danubiushotels.com/hu/szallodak-gyor/hotel-raba

However feel free to choose from other options:
https://www.booking.com/city/hu/gyor.hu.html

It is possible to book rooms at the university:
http://kollegium.sze.hu/en_GB/home-1