void deltaWskaznik(int* a,int* b,int* c,int* x1,int* x2,int* x0,int* d)
{
    printf("**********************************\n");
    printf("Podaj a:");
    scanf("%d",a);
    printf("Podaj b:");
    scanf("%d",b);
    printf("Podaj c:");
    scanf("%d",c);
    *d=(pow(*b,2))-(4* *a * *c);
    *x0=(-(*b))/(2*(*a));
 *x1=(-(*b)-pow(*d,1.0/2.0))/(2* *a);
*x2=(-(*b)+pow(*d,1.0/2.0))/(2* *a);
 printf("***********************************\n");
    };

int main()
{
    int a,b,c,x1,x2,x0,d;
    deltaWskaznik(&a,&b,&c,&x1,&x2,&x0,&d);
    printf("a= %d \n b= %d \n c= %d \n delta=%d \n x0=%d \n x1=%d \n x2=%d ",a,b,c,d,x0,x1,x2);
    return 0;
}