史上最短

CODE

int main(){int n,a[110];__builtin_scanf("%d",&n);for(int i=0;i<=n;i++)__builtin_scanf("%d",&a[i]);for(int i=0,j=n;i<=n;i++,j--){if(a[i]==0)continue;if(i>0&&a[i]>0)__builtin_printf("+");if(a[i]==-1&&j!=0)__builtin_printf("-");if((a[i]<0?0-a[i]:a[i])!=1||((a[i]<0?0-a[i]:a[i])==1&&j==0))__builtin_printf("%d",a[i]);if(j!=0)__builtin_printf("x");if(j>1)__builtin_printf("^%d",j);}return 0;}