E-Sources Informatics

#include <iostream.h>
#include <math.h>
#include <conio.h>
class Akar {
public:
    Akar();
    float akar1() {return -B+sqrt(disk())/(2*A); }
    float akar2() {return -B-sqrt(disk())/(2*A); }
    //void cetak_akar();
private:
    int A, B, C;   // input
    int disk() { return B*B-4*A*C; }
    float x1, x2;  // akar 1 dan akar 2
};    
    
Akar::Akar() {
     cout << "Koefisien pangkat 2   : "; cin >> A;
     cout << "Koefisien pangkat 1   : "; cin >> B;
     cout << "Koefisien pangkat 0   : "; cin >> C;
     if (A == 0) {
        cout << "bukan pers. kuadrat.\n";
        cout << "Harga akar = " << -C/B; }  else {          
          if (disk() > 0) {      
             x1 = akar1();
             x2 = akar2();
             cout << "diskriminan = " << disk() << endl;
             cout << "x1 = " << x1 << endl;
             cout << "x2 = " << x2 << endl;
          }  else if (disk() == 0) {  
                    x1 = akar1();   
                    x2 = x1;
             cout << "diskriminan = 0\n";
             cout << "x1 = " << x1 << endl;
             cout << "x2 = " << x2 << endl;
             } else cout << "Akar imajiner";
     }
}

main() {
    Akar kasus;
    getch();
    return 0;
}