C++ Exercise

main.cpp

#include <iostream>
#include <cmath>

using namespace std;

double dis(double a, double b, double c)
{
    double s;
    s = sqrt(b*b-(4*a*c));
    return s;
}

double quada(double a, double b, double c)
{
    double x, disc;
    disc = dis(a,b,c);
    x = -(b) + (disc) / (2 * a);
    return x;
}

int main()
{
    double a,b,c, disc, so1, so2 ;

    disc = dis(a,b,c);
    cin >> a >> b >> c;
    cout << "\n\nThe Discriminate is "<< disc;
    if (disc > 0)
    {
        so1 = quada(a, b, c);
        cout << "\n\nThe first solution is: "<< so1;
    }
}

Makefile

all:
    clang++ main.cpp -o main