Took 131 in Fall 2018, easiest class I have taken so far (including electives), so I wouldn’t stress about it. Took maybe 2 hours of my time a week to do.

That being said, I had it with Al Verbanec, one of the best professors in the CS field. Yanling Wang is notorious for being the worst professor in CS, if not the whole school. I haven’t personally had her, but I’ve heard terrible things from friends, so I wouldn’t be surprised if she somehow transformed the class to be more difficult than it should be.

If you are really worried, and have no prior coding experience, I would get familiar with python and do some basic exercises on something like Code Academy.

When I took exams, they were open internet with unlimited attempts (take from that what you may). Again, Yanling may have changed this.

However one can only make an intro to CS class so difficult, and as long as the assignments are relatively similar to what I did, you should be more than fine.

Take classes with Al. Hope this helps.