How to deal with slob roommates (HELP)

Well, i’ll cut to the chase, i’m a first year student attending Cal State San Marcos as a Biotech major, and we live in dorms (well, not really dorms, more like mid-range condos) and i;m living with 4 other roommates, all guys. Here’s my problem, they are ALL slobs! It wasn’t really a major issue at first, we all knew that we had to try to keep the place decent looking at the very least, but, like all the motivation you have at the beginning of the semester, that need to keep the place clean is gone, G-O-N-E gone. These guys will shit where they sleep, they eat and leave the dishes literally right where they were eating, if you’re lucky, they may take them to the sink, but it really almost never happens. my actual roommate (there’s 2 shared rooms and one single) leaves his clothes everywhere, he’ll sometimes come back from the gym and put his sweaty crap on myside of the room, i’ve gone off on him and he’s stopped, sort of. He still leaves his clothes everywhere and whenever i don’t open the windows to air out the place it smells like ass. i’m just looking for a way to keep the place looking tidy without having to put most of the work, I blame them and give them flack for being slobs, but they just shrug it of like it’s nothing. It’s actually gotten so bad to the point where I’m embarassed to bring around any of my dates to the place, I’ll just tell them some lie so that they don’t get the impression that i’m also a slob, i try my best to keep the place clean, but there’s only so much one neat freak can do against 4 slobs. Any suggestions on how to take care of this, or at least reduce the amount of mess around the apartment? it’s way too late in the school year to relocate to any of the other apartments, I just need to survive the rest of this year without having a mental breakdown on these fools. Thanks for any help guys.

Is this school affiliated housing? Is there an RA to talk to?

If not, then call an apartment meeting. Say that it “smells like ass” and what can we do about it.

Ask if they want to pay for a cleaning person? No?? THen we all have to do some basic level of cleaning.
Seems like they may have gotten into the “well if he doesn’t clean up, why should I”
How about trying to come up with some basic rules like
“Dishes have to be cleaned after you use them within an hour.”

“Don’t leave clothes in the living room.”
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For your roommate, what would you want him to do? Put them in a hamper?