其实。。。很简单。。。
```c
#include <bits/stdc++.h>
using namespace std;
int main()
{
int n;
cin >> n;
for (int i = n; i >= 0; i--)
{
int a;
cin >> a;
if (a != 0)
{
if (i != n && a > 0)
cout << "+";
if (abs(a) > 1 || i == 0)
cout << a;
if (a == -1 && i)
cout << "-";
if (i != 1 && i != 0)
cout << "x^" << i;
if (i == 1)
cout << "x";
}
}
return 0;
}
```
对，完事儿了。。。
by wzj0829 @ 2023-08-23 21:42:49
@[wzj0829](/user/1028403) 谢谢
by YuanHaoYu6315 @ 2023-08-25 13:01:42