Template Function sequant::permutation_parity

• Defined in File permutation.hpp

Function Documentation

template<std::integral T>
int sequant::permutation_parity(std::span<T> p, bool restore = false)

computes parity of a permutation of 0 … N-1

Parameters:

• p – permutation

• restore – if true, p is restored to its input value on return; if false, it is left with N added to each element (the cycle marks)