I am a student in Nannong Pukou Campus. Dormitories in our campus are all divided according to majors and classes. In other words, the dormitory building where each class is located has been divided. So it doesn't matter if you go early or late.
However, most class teachers have no arrangements for beds, which students in the class live in which dormitory. If you go early, you can grab the sun room. After all, Nanjing is humid, and the sunny side is conducive to drying clothes and is more comfortable. . . And you can also choose to sit by the door or window, upper berth or lower berth.
Of course there are exceptions. For example, in the last agricultural machinery major, some people lived in the new building 14, and some lived in the old building 4, because there were not enough houses in the new building. It is necessary for them to go early.
If you are from Wei Gang campus, I don't know ~ ~