czj/VS Code/hanshu.cpp

#include <iostream>
#include <math.h>
using namespace std;
int main (){
    double a,b,c,x,y;
    cin>>a>>b>>c;
    x=-b/(a*2);
    y=((4*a*c)-b*b)/(4*a);
    cout<<"("<<x<<","<<y<<")";
    system("pause");
    return 0;
}