USABO study

Hi everyone,

I have started to prepare for USABO and I’m reading through Campbell’s 8th edition.

My goal is to just pass the open exam and make semis…
Does anyone know what chapters are most important to know for the test (a specific list of chapters to focus on would be nice!) ?
This would help me greatly in knowing what to concentrate most on when reading and re-reading.

~Thanks in advance !