一元稀疏多项式计算器[加法和乘法] 问题描述： 设计一元系数多项式计数器实现两个多项式间的加法、减法。 基本要求： （1）　　输入并建立多项式 （2）　　输出多项式，输出形式为整数序列：n，c1，e1，c2，e2……cn，en，其中n是多项式的项数，ci，ei分别为第i项的系数和指数。序列按指数降序排列。 （3）　　多项式a和b相加，建立多项式a+b，输出相加的多项式。 （4）　　多项式a和b相减，建立多项式a-b，输出相减的多项式。 用带表头结点的单链表存储多项式。 测试数据： (1) (2x+5x8-3.1x11)+(7-5x8+11x9) (2) (6x-3-x+4.4x2-1.2x9)-(-6x-3+5.4x2+7.8x15) (3) (x+x2+x3)+0 (4) (x+x3)-(-x-x-3)-one yuan sparse polynomial calculator [Addition and multiplication] Problem descr iption : Design one yuan polynomial coefficient counter achieve the two polynomials addition, subtraction. Basic requirements : (a) input and the establishment of polynomial (2) output polynomial, the output form of integer sequence : n, c1, e1, c2, e2 ... cn, en, where n is the polynomial Number, ci, ei for the first item i the coefficients and indexes. By sequencing index in descending order. (3) a and b polynomial addition, the establishment of a polynomial b, the combined output polynomial. (4) a and b polynomial subtraction, the establishment of a polynomial-b, the output phase by polynomials. With the first table with a single node Chain store polynomial. Test data : (1) (2x 5x8 - 3.1x11) (7-5x8 swath) (