Recently, I've found a deep interest in problems involving queries on Trees (Have you tried the ones on the monthly Codechef Long Contests? They are too good!) I want to practice more of them. Since this doesn't fall into a proper category per say, I wanted to ask if anybody can give me good links to similar problems for practice and resources if possible.
Here are a few examples of problems in recent contests that I found to be very interesting.
Do you know where I can find more of such problems? Thanks and have a great day!