I'm trying to practice graph and tree problems, but I can't seem to find a good resource. I started with the CSES problem set, but it hasn't been very helpful so far. Can someone suggest how I can build a better flow for learning and practicing these topics?
in what ways CSES isn't useful?
Introduction to Graphs
Introduction to Trees
I suggest USACO Silver, it is a great place to practice (Start by solving the easy problems from each type before going to the medium)
Here