#include<stdio.h>
#include<conio.h>
#include<math.h>
void main()
{
    int a,b,c;
    printf("Vvedite a, b, c:\n");
    scanf("%i %i %i", &a, &b, &c);
    float d,D;
    d=(b*b)-4*a*c;
    if (d < 0)
    {
        printf("Korney net");
        exit(1);
    }
    D=sqrt(d);
    float x1,x1;
    x1 = (-b+D)/(2*a);
    x2 = (-b-D)/(2*a);
    printf("x1 = %f; x2 = %f. \n", x1, x2);
    getch();
}