c++ - 格式化我的输出方程

Question

尝试打印出多项式邮件，即 10x^0+1*x^1 和 9*x^0+1*x^1 但是多项式打印为

10x^0+1*x^1 +9*x^0+1*x^1，这是我的for循环方程

 for(int i=0; i<=p->deg; i++) { 
     if (p->coeffs[i]==0)
       break; //dont want to print out any 0 constants

   cout << p->coeffs[i] <<" * " << x << "^"<<i << " ";

   if (p->coeffs[i]>0 && p->coeefs[i+1]!=0)
      cout<< "+";

}

Answer 1

利用：

if (p->coeffs[i]>0 && (i != p->deg) )
      cout<< "+";

此外，您不应该 break在 时p->coeffs[i] == 0，可能是其他即将到来的系数不为零。

 if (p->coeffs[i]==0)
           continue; //dont want to print out any 0 constants

另外，所以我认为以下应该有效

 for(int i=0; i< p->deg; i++) { //Notice only < sign
     if (p->coeffs[i]==0)
       continue; //dont want to print out any 0 constants

   cout << p->coeffs[i] <<" * " << x << "^"<<i << " ";

   if ( p->coeffs[i+1] > 0 )
        cout<< "+";
    }