Introduction - If you have any usage issues, please Google them yourself
(1) input and establish polynomial.
(2) output polynomial, the output form is integer sequence: n, C1, E1, C1, C2, e2,... Cn, en, N, which is a polynomial number of entries, CI, EI, respectively, the coefficient and index of item I, sequence index sorted in descending order.
(3) polynomial A and B are added, and polynomial a+b is established.
(4) polynomial A and B subtraction, the establishment of polynomial a-b.
(5) calculate the value of the polynomial at X.