Hi! I am kind of new to Codeforces. What does the hashtag mean in the standings? Thanks!

Hi! I am practicing for USACO, and I have some questions. I have never done USACO before, but I am totally excited. What is the input/output for USACO? I am a python programmer, and I have tried doing a USACO problem from a past year, and there is issues with the inputs and outputs. Thanks!

All of the problems I have done so far are all really creative and interesting. There seems to be countless number of problems, and they are all really unique. There are also like problems rated 3500 that only a few people have solved. Where do people get the inspiration to make these problems?

Hello everyone! I am a newbie and have been pretty new to CP. I have practiced some problem solving strategies and some really basic concepts like "greedy" and "brute force". How do I learn more algorithms and practice them for USACO Silver/Gold? Thanks!