are involved. take gdb as a widely available c interpreter
print -2 /3
0 for c, -1 for python.
more amazing, modulos of negative number give negative values! (in c).
from an algebraic point of view, python seems right, but I thought python conformity to the underlying c compiler was a strong commitment, obviously not here, and I found no explanation whatsoever in python doc.
no actual programming challenge for me here, I just had this bug, after confidently translating from python to c.
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