1问题描述：

设计一个实现稀疏多项式乘法的程序

2需求分析：

编程实现两个一元多项式相乘，要求：

2.1输入并建立多项式；

2.2输出多项式，输出形式为整数序列：n,c1,e1,c2,e2``````,cn.,en,其中n是多项式的系数，ci和ei分别是第i项的系数和指数，序列按指数降序排列。

2.3多项式a和b相乘，建立结果多项式a*b

-a Problem descr iption : Design a sparse polynomial multiplication achieve the two procedures demand analysis : Programming 2 1 yuan polynomial multiplication, requirements : 2.1 to import and establish polynomial; 2.2 Output polynomial, Output form of integer sequence : n, c1, e1, c2, e2 ``````, cn. , en, where n is the polynomial coefficients, respectively ei ci and is the first item i coefficient and the index sequence index in descending order. 2.3 polynomial multiplication a and b, the results establish a* b polynomial