摘要： Easy TaskTime Limit:1 Second Memory Limit:32768 KBCalculating the derivation of a polynomial is an easy task. Given a function f(x) , we use (f(x))' to denote its derivation. We use x^n to denote xn. To calculate the derivation of a polynomial, you should know 3 rules:(1) (C)'=0 where C is a 阅读全文