by w15998366226 @ 2022-10-24 22:18:09
```cpp
cin>>n;
for(int i=n;i>=1;i--){
cin>>a[i];
}
```
因为你没读进去（有 $n+1$ 个数）
by Regain @ 2022-10-24 22:20:20
改了之后就错的更离谱了
by w15998366226 @ 2022-10-24 22:25:46
by w15998366226 @ 2022-10-24 22:27:29
```cpp
#include<bits/stdc++.h>
using namespace std;
int a[1011],n;
int main(){
cin>>n;
for(int i=n;i>=0;i--){
cin>>a[i];
}
for(int i=n;i>=0;i--){
if(a[i]==0){
continue;
}else{
if(a[i]<0){
cout<<"-";
if(a[i]!=-1||i==0)cout<<abs(a[i]);
}else if(i==n){
if(a[i]!=1||i==0)cout<<abs(a[i]);
}else{
cout<<"+";
if(a[i]!=1||i==0)cout<<abs(a[i]);
}
if(i>0)
{
cout<<"x";
if(i!=1)cout<<"^"<<i;
}
}
}
return 0;
}
```
by 李宗洁Jimmy @ 2022-10-24 22:53:13