#include<iostream>
#include<stdio.h>
#include<stdlib.h>
using namespace std;
typedef struct Node* List;
struct Node
{
List next;//指向下一个结点
int x;//指数
int z;//系数
};
List Read()
{
List L = new Node;
List head = L;
int n=0;
cout << "请输入你的多项式的项数(项数不可以是0或者负数!)" << endl;
cin >> n;
for (int i = 0; i < n; i++)
{
int x, z;
List temp = new Node;
cout << "请输入第:" << i + 1 << "项指数" << endl;
cin