Ap cs is a joke. It's a programming test you hand write. If the person misreads your handwriting or is just wrong about their understanding of the language you get it wrong. And nobody is there to prove otherwise. Oh yeah, the test is 120 bucks to have what is clearly a non professional grade it. How do I know this? Because I knew every answer on the test, finished early, then got a 3. I had to argue for credit the intro to cs course I'm college, then complained that the data structures class was too easy and too slow. I then proceeded to graduate with a 3.65 gpa and have programmed better than almost everyone I've encountered.
When AP has transparency in their grading I'll take them more seriously. Until then, they are a sham company enjoying their lucrative monopoly in the education testing market.