didicclc@gmail.com
(張聿丞)
#include <iostream>
#include <math.h>
using namespace std;
int main()
{
int a,b,c,d,x,x1,x2;
while(cin>>a>>b>>c)
{
d = (b*b*2)-(4*a*c);
if(d>0)
{
x1 = (-b+sqrt(d))/(2*a);
x2 = (-b-sqrt(d))/(2*a);
cout << "Two different roots x1=" <<x1<<" "<<", x2=" <<x2<<endl;
}
else if(d==0)
{
x = -b/(2*a);
cout<<"Two same roots x="<<x<<endl;
}
else
{
cout<<"No real root";
}
}
}
謝謝各位大大
linlincaleb@gmail.com
(臨末之頌)
#include
#include
using namespace std;
int main()
{
int a,b,c,d,x,x1,x2;
while(cin>>a>>b>>c)
{
d = (b*b*2)-(4*a*c);
if(d>0)
{
x1 = (-b+sqrt(d))/(2*a);
x2 = (-b-sqrt(d))/(2*a);
cout << "Two different roots x1=" <<x1<<" "<<", x2=" <<x2<<endl;
}
else if(d==0)
{
x = -b/(2*a);
cout<<"Two same roots x="<<x<<endl;
}
else
{
cout<<"No real root";
}
}
}
謝謝各位大大
d = (b*b*2)-(4*a*c); 改成d = (b*b)-(4*a*c); 看看