求一元二次方程的根的个数
#include <iostream>
using namespace std;
int main()
{
int a,b,c,d;
cin>>a>>b>>c;
d=b*b-4*a*c;
if(d!=0)
if(d<0)
cout<<"zero";
else cout<<"two";
else cout<<"one";
return 0;
}
using namespace std;
int main()
{
int a,b,c,d;
cin>>a>>b>>c;
d=b*b-4*a*c;
if(d!=0)
if(d<0)
cout<<"zero";
else cout<<"two";
else cout<<"one";
return 0;
}