`

#include<iostream>
#include<cmath>
#include<iomanip>  
#include<fstream>
#include<string>

using namespace std;
int main()

{

    const int num=10;
    double a[num],b[num],c[num],disc,x1[num],x2[num],qe,x,realpart,imaginarypart;
    char answer;

do
{
    for (int index=0; index<num;index++)
    {

    cout<<"Enter coefficient of a (a>0): ";
    cin>>a[index];
    cout<<"Enter coefficient of b: ";
    cin>>b[index];
    cout<<"Enter coefficient of c: ";
    cin>>c[index];

    qe=a[index]*(pow(x,2))+(b[index]*x)+(c[index]);
    disc=(pow(b[index],2))-(4*a[index]*c[index]);

    if (disc>=0)
    {
    x1[index]=-(b[index]/2*a[index])+(sqrt(disc))/(2*a[index]);
    x2[index]=-(b[index]/2*a[index])-(sqrt(disc))/(2*a[index]);
    cout<<" Roots are real and different."<<endl;
    cout<<"x1= "<<x1[index]<< endl;
    cout<<"x2= "<<x2[index]<< endl;

    }

    else 
    {

        realpart=-b[index]/(2*a[index]);
        imaginarypart=(sqrt(-disc))/(2*a[index]);
        x1[index]=realpart + imaginarypart;
        x2[index]=realpart - imaginarypart;
        cout<< "Roots are complex and different."<<endl;
        cout<<"x1= "<< realpart << "+" << imaginarypart<< "i"<< endl;
        cout<<"x2= "<< realpart << "-" << imaginarypart<< "i"<< endl;

    }
            cout<<"Do you want to solve for another quadratic equation?(y/n)?"<<flush;
        cin>>answer;
}
}

while (answer=='y'|| answer=='Y');

cout<<setprecision(4)<<fixed;
cout<<setw(9)<<"a"<<setw(9)<<"b"<<setw(9)<<"c"<<setw(9)<<"x1"<<setw(9)<<"x2"<<endl;
    for(int index=0;index<num;index++)
        {
            cout<<index+1<<" - "<<setw(9)<<a[index]<<setw(9)<<b[index]<<setw(9)<<c[index]<<setw(9)<<x1[index]<<setw(9)<<x2[index]<<endl;

        }

ofstream outputFile;
outputFile.open("report.txt");
outputFile.close();

cout<<"Number of equation solved: "<<endl;
cout<<"The largest value of coefficients a entered:"<<a<<endl;
cout<<"The smallest value of coefficients b entered:"<<b<<endl;
cout<<"The average value of coefficients c entered:"<<c<<endl;

    return 0;
}

`

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