There is a very nice way to find a modular inverse (that is, such b
that ab ≡ 1 (mod m)
for given a
and m
) in python-3.8:
b = pow(a, -1, m)
pow
is built-in in python-3.8. Is there something like this in c++?
No there is no built-in function in C++ (to answer your question :) ).