Just a personal rating of physics cup problems. Blanks are problems I have not done.
Rating:
my rating will be mostly based on how fun the problem is to do rather than how much you learn from it, because, let’s face it, if you’re doing physics cup it is purely for the fun of it.
0 - not worth your time at all
1 - worth your time if you are immortal
2 - meh
3 - quite interesting
4 - very interesting
5 - do before you die
For some problems, I will also provide a way to check your answer without knowing the answer, through the usage of hashes/checksums. Those problems will have an embedded page (the 📄 icon)
Most commonly, I will provide the Shake-256 32-bit hash of the numerical prefactor, rounded to 4 significant figures. If not stated, the hashing algorithm used will always be this algorithm, and the answer input will be a decimal.