pub fn mul_vec_simple(
v0: &Vec<Polynomial<i64>>,
v1: &Vec<Polynomial<i64>>,
modulus: i64,
poly_mod: &Polynomial<i64>,
omega: i64,
) -> Polynomial<i64>pub fn mul_vec_simple(
v0: &Vec<Polynomial<i64>>,
v1: &Vec<Polynomial<i64>>,
modulus: i64,
poly_mod: &Polynomial<i64>,
omega: i64,
) -> Polynomial<i64>